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ISHII HiroakiGraduate School of Agricultural Science / Department of Bioresource ScienceProfessor
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■ Committee History
- Jan. 2021 - Present, Forests, Editor
- Oct. 2019 - Present, 西宮市教育委員会, 文化財審議委員(天然記念物担当)
- Sep. 2019 - Present, Associate Editor in Chief, Editor
- 2018 - Present, Forest Ecology and Management, Editorial Board
- Sep. 2016 - Present, Tree Physiology, Editorial Review Board
- Jan. 2012 - Present, Ecological Research, Associate Editor in Chief
- 日本生態学会, 近畿地区委員
Research activity information
■ Award- Nov. 2019 日本樹木医学会, 学生ポスター賞, 都市林における外来樹木トウネズミモチと在来種の分布パターン
- Sep. 2019 日本緑化工学会, 学生ポスター賞, クスノキの乾燥耐性に寄与する木部細胞
- Mar. 2019 日本生態学会, 優秀ポスター賞(生理生態部門), クスノキ老大木の通水構造(2) 老木と成木の通水構造の比較Japan society
- Mar. 2019 日本森林学会, 130回森林学会大会学生ポスター賞, ポスター発表Japan society
- Apr. 2018 International Congress of the East Asian Federation of Ecological Societies, Best Poster Award, Height-related changes in hydraulic structure of old Cinnamomum camphora: trade-off between hydraulic conductivity and safetyInternational society
- Sep. 2017 日本緑化工学会, 学生ポスター賞, ビル風による都市緑化樹の衰退要因の解明Japan society
- Nov. 2016 地域政策研究会, 第1回貝原俊民美しい兵庫づくり賞, 西宮神社えびすの森における住民参加による生態系の保全と復元全国ではじめて市民参加による社叢林保全の仕組みを構築したことによる地域貢献Publisher
- Mar. 2016 日本森林学会, 日本森林学会賞, 高木の樹高成長制限に関する生理生態学的研究Japan society
- Sep. 2015 日本緑化工学会, 第45回日本緑化工学会 最優秀ポスター賞(学術交流部門), 施工後35年が経過した緑化地における木本群落回復の定量的評価Japan society
- Mar. 2015 日本森林学会, 第126回 日本森林学会大会 優秀ポスター賞, 最大樹高に達した異樹齢アカマツにおける葉の生理特性の比較Japan society
- Mar. 2014 日本生態学会, 第61回 日本生態学会大会 優秀ポスター賞, 秋田スギの梢端葉の水ストレスは貯水機能によって改善される?Japan society
- Sep. 2013 日本緑化工学会, 第23回 日本緑化工学会森林学会大会 最優秀ポスター賞, 神戸層群における天然林再生を目的とした法面緑化:10年後の経過報告Japan society
- Sep. 2012 日本緑化工学会、景観生態学会、生態工学会, 第2回 Ecology, Landscape, and Restoration合同学会 最優秀ポスター賞, 強度剪定後の緑化樹木の回復過程の研究Japan society
- Mar. 2012 日本生態学会, Japanese Ecological Society Ohshima Award, 石井弘明
- Dec. 2011 日本生態学会 近畿支部, 日本生態学会近畿地区会 大会奨励賞, 樹上100mの水ストレス?セコイアメスギの葉の水分生理特性Japan society
- Nov. 2008 日本農学会, 農学進歩賞, 森林の光合成・炭素固定促進を目的とした樹木生理学的研究
- Apr. 2007 日本森林学会, 日本森林学会奨励賞, Exploiring the relationships among canopy structure, productivity and biodiversity of temperate forest ecosystems
- Feb. 2025, Acta Horticulturae, 1(1419) (1419), 81 - 86International conference proceedings
- Purpose: Environment-friendly pest management techniques are safer, sustainable over the years, better for ecosystem services, and more convenient with lower risks. Netting and or bagging is one of the most suitable tools for pest management. To develop environmentally friendly management techniques against the common cutworm (Spodoptera litura Fab.), we compared the cost-effectiveness of netting and bagging for the production of bell peppers in Bangladesh.Research Method: The study was undertaken in the field of Entomology, at Sylhet Agricultural University, Bangladesh, from October 2018 to April 2019. Netting and bagging significantly improved plant morphology, fruit quality, and yield and managed the insect pests.Findings: In this paper, we tried to bring forth different prospects of netting and bagging in bell peppers to manage the common cutworm. Superior-quality fruits were harvested from the netting/bagging treatment compared to the control. Netting and bagging treatment increased yield by more than 10-fold over control and decreased fruit infestation to 10.67%. The maximum marginal benefit-cost ratio (MBCR = 18.06) was achieved from the netting/bagging treatment, while the lowest MBCR (7.29) was obtained from bagging only. Superior-quality fruits were obtained using white paper bags compared to brown paper bags. The common cutworm first appeared in February and gradually increased with the progress of the season, indicating that netting and bagging need to be applied at the early fruiting stage of bell pepper.Research Limitations: The study focused on the environment-friendly management of common cutworms in bell peppers, revealing impressive results, but these need to be validated across the locations.Originality/Value: Albeit labor-intensive, combining nylon netting with fruit bagging is a cost-effective, eco-friendly management technique against the common cutworm of bell pepper.Last, Sri Lanka Journals Online, Sep. 2024, Journal of Agricultural Sciences, 19(3) (3), 482 - 496, English, No password[Refereed]Scientific journal
- Elsevier BV, Apr. 2024, Biological Conservation, 292, 110520 - 110520, EnglishScientific journal
- 2024, Journal of Forest Research, 29(6) (6), 440 - 449Scientific journal
- Abstract In Japan, secondary forests associated with agriculture (satoyama) had been maintained traditionally by small-scale clearcutting and short-rotation coppice forestry. After forest management was discontinued due to modernization, shade-intolerant, deciduous trees such as Q. serrata and Q. variabilis have become dominant in many secondary forests of southwestern Japan. In recent years, however, tree death from Japanese oak wilt has become wide-spread. To identify forest communities that will be most affected by oak wilt, we investigated stand structure and species composition in a 64-ha unmanaged secondary forest in Kobe, Japan. We identified three forest communities using cluster analysis of 27 survey plots. We then analyzed and visualized vegetation similarity among the communities using non-metric multidimensional scaling (nMDS). In secondary forests, Pinus densiflora–Rhododendron macrosepalum and Quercus serrata–Quercus variabilis communities, which established after pine wilt were identified. We also found communities dominated by Cryptomeria japonica, a plantation species. We predicted that Quercus serrata–Quercus variabilis communities will experience significant vegetation change after oak wilt and become low-statured, evergreen-deciduous forests. These communities, therefore, should be prioritized for active management by small-scale clear cutting to prevent further spread of oak wilt and subsequent biodiversity decline.Springer Science and Business Media LLC, Oct. 2023, Landscape and Ecological Engineering, EnglishScientific journal
- Springer Science and Business Media LLC, Sep. 2023, Agroforestry Systems, EnglishScientific journal
- To prepare and manage urban greenspace for a hotter future, we must select trees that can tolerate or acclimate to high temperatures. Here, we compared tolerance and acclimation to high temperatures among nine urban tree species in Japan. Saplings were exposed to heat from different times (early and mid-summer) during the growing season in a greenhouse. With the exception of Ginko, heating in early summer did not affect whole-tree health, suggesting that most urban tree species may be able to acclimate to higher temperatures during the early growing season. However, continued exposure to higher temperatures, as well as heating from mid-summer, had negative effects on tree health, leading to wilting/browning, especially for evergreen broadleaved species whose leaves mature slowly. Cornus florida, Styrax japonicus and Morella rubra were the most vulnerable to heating, such that all heated saplings had died by the end of summer. At the leaf level, leaf maturation of the deciduous species and Morella was negatively affected by heating, whereas that of Eurya emarginata and Euonymus japonicas were not affected. These two species also showed heat tolerance, having a higher T50 (temperature where leaf quantum yield declined to 50% of maximum value due to heat stress) compared to other species, as well as heat acclimation, where T50 was higher for the heated saplings compared to the control. Our results indicate that, while some species that cannot recover from heat damage in early summer could die, others can acclimate to sustained high temperatures, as well as to late summer heat. As heatwaves are expected to become more frequent and severe due to global warming, tree species need to be screened individually to assess their ability to tolerate or acclimate to high temperature.MDPI AG, Aug. 2023, Forests, 14(8) (8), 1639 - 1639, EnglishScientific journal
- Informa UK Limited, May 2023, Journal of Forest Research, 1 - 8, EnglishScientific journal
- Oct. 2022, Ecological Research, 38(2) (2), 265 - 278, EnglishScientific journal
- Springer Science and Business Media LLC, Jan. 2022, Plant Ecology, 223(1) (1), 99 - 112Scientific journal
- Dec. 2021, TREES-STRUCTURE AND FUNCTION, 35(6) (6), 1793 - 1806, EnglishScientific journal
- Aug. 2021, Landscape and Ecological Engineering, 18(1) (1), 1 - 10, EnglishScientific journal
- Informa {UK} Limited, Sep. 2020, Journal of Forest Research, 1 - 10[Refereed]Scientific journal
- May 2020, Ecological Research, 35(4) (4), 562 - 574, English[Refereed]Scientific journal
- THE JAPANESE FORESTRY SOCIETY, 2020, The Japanese Forest Society Congress, 131(0) (0), 722 - 722, Japanese
[in Japanese]
- Jul. 2019, URBAN FORESTRY & URBAN GREENING, 43, English[Refereed]Scientific journal
- Feb. 2019, OECOLOGIA, 189(2) (2), 317 - 328, English[Refereed]Scientific journal
- Dec. 2018, FOREST ECOLOGY AND MANAGEMENT, 429, 437 - 448, English[Refereed]Scientific journal
- As trees increase in size, water transport from roots to leaves becomes constrained due to increasing path length, hydraulic resistance, and hydrostatic limitation. In trees, hydraulic conductivity decreases with increasing size due, not only to hydrostatic constraints and increasing path length, but also increasing number of annual nodes and junctions through which water must travel to reach terminal leaves. Axial tapering of xylem conduits contributes to increasing efficiency of whole-tree water conduction and minimizing hydraulic constraints on productivity and growth. Here, we compared xylem structure along the vertical gradient in large, old Cinnamomum camphora trees (with height ca. 25 m and age ca. 100 years) to infer the height effect on xylem structure and its variation with height. Vessel diameter (D) was smaller and vessel density per sapwood area was higher for upper than lower trunk. Within annual rings, vessel diameter decreased from early- to late-wood and the rate of this change was nearly constant with height. Potential hydraulic conductivity, calculated from D, was markedly lower for upper than lower trunk and lack of vessels with D > 250 μm at upper trunk contributed to this difference. Vertical change in xylem structure observed here, may contribute to maintaining hydraulic efficiency and minimizing hydraulic limitation in large, old trees.応用森林学会, Aug. 2018, Applied Forest Science, 27(2) (2), 9 - 15, English
- Elsevier GmbH, May 2018, Urban Forestry and Urban Greening, 32, 123 - 132, English[Refereed]Scientific journal
- Feb. 2018, FOREST ECOLOGY AND MANAGEMENT, 409, 457 - 467, English[Refereed]Scientific journal
- Oct. 2017, TREE PHYSIOLOGY, 37(10) (10), 1367 - 1378, English[Refereed]Scientific journal
- Oct. 2017, TREE PHYSIOLOGY, 37(10) (10), 1327 - 1336, English[Refereed]Scientific journal
- Oct. 2017, TREE PHYSIOLOGY, 37(10) (10), 1394 - 1403, English[Refereed]Scientific journal
- 2017, JOURNAL OF TROPICAL FOREST SCIENCE, 29(1) (1), 44 - 53, EnglishRESPONSE OF A CLONAL TEAK PLANTATION TO THINNING AND PRUNING IN JAVA, INDONESIA[Refereed]Scientific journal
- Jan. 2017, FOREST ECOLOGY AND MANAGEMENT, 384, 157 - 168, English[Refereed]Scientific journal
- THE JAPANESE FORESTRY SOCIETY, 2017, Journal of the Japanese Forest Society, 99(2) (2), 74 - 83, Japanese
Water transport in tall trees occurs over long-distances from roots to leaves, as well as against the gravitational hydrostatic gradient. The resulting water stress and physiological/morphological constraints of treetop leaves was considered the main cause of height-growth limitation. In tall trees, there is functional trade-off of xylem hydraulic efficiency relative to hydraulic safety and water-stress adaptation. In addition, xylem hydraulic properties affect photosynthetic production by regulating CO2 uptake through stomata and resource allocation. Because the well-illuminated treetop environment can yield potentially high photosynthetic production, researchers have suggested mechanisms that allow tall trees to adapt/acclimate to, or compensate for, hydraulic limitation. Recent research has revealed new insights, such as structural characteristics of xylem cells for hydraulic efficiency and safety, adaptation/acclimation of xylem structure and function to increasing height, and hydraulic capacitance of leaf and sapwood that compensates for hydraulic limitation. New findings have revealed variability of hydraulic architecture due to high phenotypic plasticity and short-term changes in hydraulic conductivity within tall trees. In tall trees, the water transport pathway connecting soil-plant-atmosphere is not a simple circuit consisting only of resistances, but includes circuit-breaker-like safety buffers and capacitor-like storage mechanisms. Further research should elucidate, in its entirety, the hydraulic architecture of tall trees, and lead to integrated understanding tall-tree ecophysiology.
- Springer Verlag, Jun. 2016, Trees - Structure and Function, 30(3) (3), 1019, English[Refereed]Scientific journal
- Jun. 2016, TREES-STRUCTURE AND FUNCTION, 30(3) (3), 1019 - 1019, English[Refereed]Scientific journal
- 日本社叢学会, Mar. 2016, 社叢学会誌, 14, 19 - 24, JapaneseThe Changing Vegetation of Nishinomiya Shrine Forest since the Late Edo Period
- Feb. 2016, TREES-STRUCTURE AND FUNCTION, 30(1) (1), 141 - 152, English[Refereed]Scientific journal
- 2016, FOREST SCIENCE AND TECHNOLOGY, 12(3) (3), 130 - 136, English[Refereed]Scientific journal
- 2016, URBAN FORESTRY & URBAN GREENING, 15, 53 - 57, English[Refereed]Scientific journal
- Springer Verlag, Aug. 2015, Oecologia, 179(4) (4), 959 - 967, English[Refereed]Scientific journal
- Mar. 2015, Applied Forest Science, 24(1) (1), 15 - 20, EnglishEvaluation of a natural forest restoration project in Kobe City, Japan ten years after planting[Refereed]Scientific journal
- Fire is a natural component of vegetation dynamics in boreal forests. However, in Far East Russia,socio-economic changes following the dissolution of the Soviet Union have resulted in increased incidences ofhuman-caused forest fires. Here,we compared the species composition and stand structure among three foreststands at various stages of recovery after fires in Central Kamchatka, to infer how intraspecific differences inregeneration strategies and subsequent patterns of survival affect post-fire forest succession. At 2 years aftera fire, sprouted stems of Populus tremula and Betula platyphylla were clustered according to their modes ofsprouting;root suckers at the 3-m scale, and stump sprouts at the 0.5-m scale, respectively. At 40 years aftera fire,stems of Larix cajanderi originating from seeds were clustered at an 8-m scale. At 200 years after a fire,clumps of B. platyphylla and L. cajanderi were both randomly distributed and the clumps of B. platyphylla weremaintained by sprouting. Bray-Curtis ordination analyses suggested that there may be multiple pathways ofpost-fire succession depending on the relative survival rates of P. tremula and B. platyphylla. If fire-returnintervals become shorter in Central Kamchatka because of more frequent human-caused fires,the population sizeof L. cajanderi will decrease and early successional forests comprising P. tremula and B. platyphylla will dominatethe landscape. On the other hand,if fires are suppressed,late-successional forests comprising L. cajanderiand B. platyphylla will dominate the landscape.北方林において森林火災は重要な自然かく乱であるが, 極東ロシアにおいては, ソ連邦崩壊後の社会経済情勢に変化により, 人為的な森林火災が増加している. 本研究では, カムチャッカ半島中央部において火災後の植生回復年数が異なる3か所の林分で調査を行い, 構成種による生存率と更新様式の違いが火災後の植生遷移にどのように影響するかを考察した. 火災後2年目の林分では, Populustremula とBetula platyphylla がそれぞれの更新様式(根萌芽および幹萌芽)に応じて, 3m および0.5m のスケールで集中分布していた. 火災後40年目の林分では, 種子由来のLarix cajanderi が8m のスケールで集中分布していた. 火災後200年目の林分では, B. platyphylla の株とL. cajanderiがともにランダム分布しており, B. platyphylla の萌芽は個体群の更新・成長ではなく株の維持を担っていた. Bray-Curtis法による解析の結果から, 火災後のP. tremula およびB. platyphylla の相対的な生存率の違いによって, 二次遷移の方向性が異なる可能性が示唆された. 今後, カムチャッカ半島において人為による火災頻度が高くなれば, P. tremula およびB. platyphylla が優占する遷移初期の森林が拡大し, L. cajanderi の個体群は減少すると考えられる. 一方, 火災が抑制されれば, L.cajanderi およびB. platyphylla が優占する遷移後期林が拡大するだろう.Institute of Low Temperature Science, Hokkaido University, 2015, Low Temperature Science, 73, 1 - 6, English
- 2015, URBAN FORESTRY & URBAN GREENING, 14(2) (2), 309 - 314, English[Refereed]Scientific journal
- To quantify the species composition of epiphytic woody plant communities in the canopy, we climbed trees using ropes and directly measured the epiphytic woody plant communities on a Cryptomeria japonica tree that regenerated after harvesting in Edo Period and a remnant tree left standing in a mixed coniferbroadleaf forest on Yakushima Island. We found only 4 species and 8 individuals on the regenerated tree, whereas we found 12 species and 391 individuals on the remnant tree. In the remnant tree, Sorbus commixta occurred in the upper canopy, while Vaccinium yakishimense occurred in the mid to lower canopy and Rhododendron tashiroi occurred on the lower stem, reflecting vertical stratification among species. Based on their size distribution, we inferred that the dominant epiphytes are regenerating in the canopy. Our results suggest that remnant trees function as refugia for species that do not occur on the ground and that retention of large, old trees after harvesting contributes to maintaining biodiversity of the forest.The Society of Vegetation Science, 2015, Vegetation Science, 32(1) (1), 57 - 63, Japanese
- Oct. 2014, FUNCTIONAL ECOLOGY, 28(5) (5), 1087 - 1093, English[Refereed]Scientific journal
- Apr. 2014, 樹木医学研究, 18(2) (2), 41 - 42, Japanese, Domestic magazineScientific journal
- Apr. 2014, INDIAN JOURNAL OF EXPERIMENTAL BIOLOGY, 52(4) (4), 344 - 351, EnglishPhenotypic plasticity and ecotypic variations in growth and flowering time of Arabidopsis thaliana (L.) under different light and temperature conditions[Refereed]Scientific journal
- In fragmented and abandoned forests near urban areas, vegetation succession often follows a plagiosere, but the direction of succession may vary depending on the surrounding landscape. We investigated edge effects and five-year change in stand structure of an abandoned secondary deciduous forest located adjacent to agricultural fields and near lucidophyllous forest. In the secondary forest, the number and basal area of evergreen-species increased, while many small individuals of deciduous species died. Size, number, and basal area of evergreen species increased from forest edge to interior, while mortality of deciduous species increased during the five-year study period. Although newly established trees included many bird-dispersed species, more than half of these were lucidophyllous forest components, dispersal was not concentrated near the forest edge, and no ornamental or invasive species were observed. Thus, we inferred that the vegetation change in the secondary forest is not following a plagiosere.We predict that evergreen species will spread from the interior toward the forest edge, shade-tolerant evergreen species will increase in the lower canopy, and tree species composition of the secondary forest will become more similar to the nearby lucidophyllous forest. In a landscape where mature forests may function as seed sources, vegetation change in fragmented and abandoned forests may not divert to a plagiosere.THE JAPANESE FORESTRY SOCIETY, 2014, Journal of the Japanese Forest Society, 96(2) (2), 75 - 82, Japanese
- Recent advances in laser technology enable us to capture detailed forest structures quickly and accurately. In the past, airborne laser has been used intensively to measure stand level attributes, such as average tree height, individual tree crowns, canopy cover, canopy stratification, and tree height growth. Using terrestrial lasers we can obtain more accurate stem volume and stem density by identifying the stem structure. Moreover, with the terrestrial laser, we can measure the upper part of stem and crown without human error, which was impossible using conventional ground-based manual measurement. LiDAR has contributed to various fields of forest ecosystem studies in estimating forest light and hydrological environments, predicting stand dynamics, and quantifying parameters for forest conservation. We expect that terrestrial lasers will be used more widely in forest ecological research to quantify physiological function of trees, large-scale, long-term monitoring of forest dynamics, as well as environmental assessment. This fine scale measurement technology has the potential to capture various structural attributes of forest ecosystems, which would allow us to understand and measure ecological processes quantitatively in forest ecosystems.THE JAPANESE FORESTRY SOCIETY, 2014, Journal of the Japanese Forest Society, 96(3) (3), 168 - 181, Japanese
- Oct. 2013, INTERNATIONAL JOURNAL OF PEST MANAGEMENT, 59(4) (4), 306 - 313, English[Refereed]Scientific journal
- Aug. 2013, JOURNAL OF FOREST RESEARCH, 18(4) (4), 345 - 352, English[Refereed]Scientific journal
- Mar. 2013, ECOLOGICAL RESEARCH, 28(2) (2), 191 - 198, English[Refereed]Scientific journal
- 2013, Nihon Ringakkai Shi/Journal of the Japanese Forestry Society, 95(2) (2), 95 - 100, JapaneseResponse of ant community structure to understory removal in a line-thinned Japanese cedarScientific journal
- Oct. 2012, TREE PHYSIOLOGY, 32(10) (10), 1227 - 1236, English[Refereed]Scientific journal
- 2012, Nihon Ringakkai Shi/Journal of the Japanese Forestry Society, 94(1) (1), 36 - 41, JapaneseAnt community structure and related environmental factors after line thinning in japanese cedar (Cryptomeria japonica) plantationsScientific journal
- In order to understand the effects of line thinning on forest biota, we compared ant community structure between the line thinned and an adjacent control stand in two Japanese cedar plantations in Hyogo Prefecture. The stand, which was heavily thinned 11 years ago, tended to have more woodland specialists and less habitat generalists compared with the control plot. In the stand, which was lightly thinned four years ago, the opposite trend was observed. The effect of environmental factors on ant species composition was not clear, but there were some effects of the amount of incident light to the forest floor and the biomass of understory vegetation. Our results indicate that more investigation is needed in order to use ant species composition as an indicator of the degree of disturbance and subsequent recovery of forest biota after forest management practices.THE JAPANESE FORESTRY SOCIETY, 2012, Journal of the Japanese Forest Society, 94(1) (1), 36 - 41, Japanese
- Aug. 2011, JOURNAL OF FOREST RESEARCH, 16(4) (4), 268 - 274, English[Refereed]Scientific journal
- Aug. 2011, TREE PHYSIOLOGY, 31(8) (8), 819 - 830, English[Refereed]Scientific journal
- THE JAPANESE FORESTRY SOCIETY, 2011, The Japanese Forest Society Congress, 123, L16 - L16, Japanese
- THE JAPANESE FORESTRY SOCIETY, 2011, The Japanese Forest Society Congress, 122(0) (0), 593 - 593, Japanese
- In order to estimate the heterotrophic respiration of fine dead root (Rhr), we tested a new method of direct measurement of dead roots buried in the L-layer of forest soil using a small chamber system. CO2 efflux from the dead roots ranged 83.3∼577.3 mg CO2 kg−1 h−1 and was inferred to be from the decomposition of the dead roots. The CO2 efflux showed seasonal change and increased exponentially with increasing soil temperature. In addition, CO2 efflux increased with decreasing mean root diameter, and the relationship could be described by a power function. Our results suggested that seasonal change and decomposition of very fine roots morphology need to be considered in estimating CO2 efflux from fine root litter in forest soils.THE JAPANESE FORESTRY SOCIETY, 2011, 日本森林学会誌, 92:269-272(5) (5), 269 - 272, Japanese[Refereed]Scientific journal
- 2011, 日本緑化工学会誌, 37: 21-25, Japanese, Domestic magazine[Refereed]Scientific journal
- Jan. 2011, ECOLOGICAL RESEARCH, 26(1) (1), 95 - 104, English[Refereed]Scientific journal
- Feb. 2010, CANADIAN JOURNAL OF FOREST RESEARCH-REVUE CANADIENNE DE RECHERCHE FORESTIERE, 40(2) (2), 273 - 285, English[Refereed]Scientific journal
- 2010, Nihon Ringakkai Shi/Journal of the Japanese Forestry Society, 92(2) (2)Scientific journal
- 2010, Journal of Tropical Forest Science, 22(4) (4)Scientific journal
- 2010, Nihon Ringakkai Shi/Journal of the Japanese Forestry Society, 92(5) (5)Scientific journal
- THE JAPANESE FORESTRY SOCIETY, 2010, The Japanese Forest Society Congress, 121(0) (0), 527 - 527, Japanese
- In coniferous plantation forests, a detailed understanding of the temporal and spatial dynamics of tree sizes is important for designing silvicultural treatments as well as controlling stand productivity. However, previous investigations have yielded unclear results regarding size dynamics, especially those of coefficient of variation (CV) in diameter at breast height (DBH) soon after canopy closure. We evaluated how differences in the spatial pattern of tree sizes at canopy closure affected the subsequent size structure dynamics of a monoclonal Japanese cedar (Cryptomeria japonica) plantation using an individual competition-based model. In the model, local competition among adjacent trees determined tree growth. The model was parameterized using empirical equations derived from a 12-year-old monoclonal C. japonica plantation. We varied the spatial pattern of tree sizes while the size frequency distribution at canopy closure was fixed. Three types of initial spatial patterns were compared, where large and small trees were aggregated (large adjacent to small), random or segregated. The variation in spatial pattern of tree sizes at canopy closure resulted in differences in the dynamics of CV of DBH among stands. Our results suggested that, even in plantation forests with the same size structure and lattice planting design, different spatial patterns of tree sizes might lead to different CV dynamics in DBH. The variable size dynamics observed in previous studies may have been caused by variation in spatial pattern or short observation period. Interactions between spatial pattern of tree sizes and other factors affecting CV dynamics must be verified through long-term studies in actual plantation forests.Japan Society of Forest Planning, 2010, Journal of Forest Planning, 15:11-19(1) (1), 11 - 19, English[Refereed]Scientific journal
- Jan. 2010, LANDSCAPE AND ECOLOGICAL ENGINEERING, 6(1) (1), 43 - 52, English[Refereed]Scientific journal
- 2010, Journal of Tropical Forest Science, 22:378-388, EnglishCarbon mitigation in tropical agroforestry systems: case study from Melaleuca leucadendron LINN plantations producing cajuput oil in Java, Indonesia[Refereed]Scientific journal
- In order to understand the dynamics of tree growth with increasing stand age, we developed models for estimating the foliage and branch mass and their vertical distribution, which influence tree growth, in a 90-year-old Chamaecyparis obtusa plantation in Hieizan Enryakuji Temple, Japan. We fit the expanded allometric equation to the relationship between distance from tree top and cumulative branch/foliage biomass. We then obtained equations for estimating the parameters of the expanded allometric equation for each tree from its DBH and tree height. The vertical distribution of branch/foliage biomass in the crown was skewed downward for the small trees and upward for the large trees. Stand-level branch and foliage biomass were 18.3 and 9.6 t ha−1, respectively. Branch biomass culminated at 2.2 t ha−1 m−1 at 16 m above ground, while leaf biomass culminated at 1.2 t ha−1 m−1 at 17 m above ground. Together with previous studies, our results suggested that, in C. obtusa plantations, branch biomass culminated around 72 years and then decreased gradually, while foliage biomass was sustained. On the other hand, branch-to-foliage biomass ratio increased with stand age.THE JAPANESE FORESTRY SOCIETY, 2010, 日本森林学会誌, 92:63-71(2) (2), 63 - 71, Japanese[Refereed]Scientific journal
- 2010, Plant Ecology, 211(1) (1), 27 - 36, English[Refereed]Scientific journal
- 2010, Landscape and Ecological Engineering, 6(2) (2), 307 - 315, English[Refereed]Scientific journal
- 2010, Ecological Research, 25(4) (4), 715 - 722, English[Refereed]Scientific journal
- Aug. 2009, Tree Physiology, 29(8) (8), 989 - 998, English[Refereed]Scientific journal
- Apr. 2009, TREE PHYSIOLOGY, 29(4) (4), 579 - 585, English[Refereed]Scientific journal
- Apr. 2009, TREES-STRUCTURE AND FUNCTION, 23(2) (2), 317 - 323, English[Refereed]Scientific journal
- Feb. 2009, APPLIED ENTOMOLOGY AND ZOOLOGY, 44(1) (1), 1 - 11, English[Refereed]Scientific journal
- 2009, 日本森林学会誌, 90:297-305, 297 - 305, Japanese樹高成長の制限とそのメカニズム[Refereed]Scientific journal
- 2009, 日本緑化工学会誌, 35(1), 45-50, Japanese, Domestic magazine[Refereed]Scientific journal
- Nov. 2008, ECOLOGICAL RESEARCH, 23(6) (6), 953 - 964, English[Refereed]Scientific journal
- Nov. 2008, Urban Ecosystems, 11(3) (3), English[Refereed]Scientific journal
- Sep. 2008, ECOLOGICAL RESEARCH, 23(5) (5), 831 - 840, English[Refereed]Scientific journal
- Sep. 2008, Journal of Forest Research, 13(1) (1), English[Refereed]Scientific journal
- Jul. 2008, OECOLOGIA, 156(4) (4), 751 - 763, English[Refereed]Scientific journal
- Apr. 2008, JOURNAL OF FOREST RESEARCH, 13(2) (2), 101 - 109, English[Refereed]Scientific journal
- 2008, Nihon Ringakkai Shi/Journal of the Japanese Forestry Society, 90(6) (6)Scientific journal
- 2008, 人と自然, 18:21-28, Japanese兵庫県日野神社社叢における27年間の森林群落動態[Refereed]Scientific journal
- Sep. 2007, ARTHROPOD-PLANT INTERACTIONS, 1(3) (3), 175 - 185, English[Refereed]Scientific journal
- Jun. 2007, Tree Physiology, 27: 455-462, EnglishPhysiological and ecological implications of adaptive reiteration as a mechanism for crown maintenance after trees reach maximum size[Refereed]Scientific journal
- Mar. 2007, TREE PHYSIOLOGY, 27(3) (3), 455 - 462, EnglishPhysiological and ecological implications of adaptive reiteration as a mechanism for crown maintenance and longevity[Refereed]Scientific journal
- We investigated changes in the spatial distribution of trees in a 90-year-old Chamaecyparis obtusa plantation owned by Hieizan Enryakuji Temple using the L-function. The plantation is an example of long-rotation silviculture for producing largediameter timber. After two thinning treatments, minimum nearest neighbor distance increased from 0.15 m to 1.19 m and tree distribution pattern became increasingly regular. The greatest change in tree distribution pattern was observed in the midslope position where large-diameter trees were harvested in the previous thinning. Sufficient tree spacing was realized by the last two thinnings. However, heavy thinning treatments may have caused a decline in standing volume. Quantitative analysis of tree distribution and stand growth using spatial statistics will contribute to establishing protocols for long-rotation silviculture in old-aged plantations.Japanese Forestry Society, Feb. 2007, JOURNAL OF THE JAPANESE FORESTRY SOCIETY, 89(1) (1), 66 - 70, Japanese
- Feb. 2007, JOURNAL OF FOREST RESEARCH, 12(1) (1), 14 - 23, English[Refereed]Scientific journal
- 2007, Nihon Ringakkai Shi/Journal of the Japanese Forestry Society, 89(3) (3)Scientific journal
- 2007, Humans and Nature, (18) (18)Scientific journal
- 日本森林学会, 2007, 森林科学, 51, 54 - 54, Japanese
- Various invasive species and escaped ornamentals have been reported to thrive in urban forest fragments. We found Trachycarpus fortunei Wendl. thriving in the shrine forest at Nishinomiya Shrine in southeastern Hyogo Prefecture. In this paper, we report on the complete removal of this species from the forest, the extent of the invasion, and the effect of the removal on the understory light environment. In addition, we assessed the cost of removal in relation to the amount of T. fortunei removed. T. fortunei density in the forest was 649 individuals per hectare, contributing 23% of the total number of trees taller than 1.3 m. Total basal area of T. fortunei was 1.7m2 ha-1, contributing only 3.4% of the total basal area, whereas in high-concentration areas leaf area index of T. fortunei was as high as 2.49-4.60. T. fortunei was especially concentrated in the northern edge of the forest facing a road and in the southwestern edge facing a parking lot. Reproductive individuals were also concentrated near the forest edge. In high-concentration areas, canopy openness in the understory was as low as 6-11%. After removal of T. fortunei, canopy openness increased by 2.2% on average (maximum 5.5%). The total cost of the removal of T. fortunei was 1, 390, 000 yen of which 72.0% was labor costs indicating that the cost of removal increases with the extent of the invasion. Shrine forests have traditionally been left unmanaged. However, this study showed that, active management is necessary to control invasive species if the objective is to sustain near-natural forest conditions. In fragmented urban forests, lack of management does not necessarily result in natural conditions. As such, human intervention may be needed to realize the management objectives of the land owner.Japan Association for Landscape Ecology, 2007, 景観生態学, 12:35-43(1) (1), 35 - 43, Japanese[Refereed]
- Urban green spaces provide multiple services to humans, such as recreation, disaster-prevention, amenity and amelioration of the environment. They also function as habitat, conduits and sinks for wildlife in urban areas. A cost-effective and technically feasible way to exploit the multiple benefits of urban green space is to utilize existing green space rather than to create new ones. Shrine/temple forests, in which indigenous regional vegetation has been preserved in near-natural state, can potentially act as centers for preservation and management of urban green space. Research in shrine/temple forests began with the phytosociological description of the vegetation. In recent years, the realization that shrine/temple forests are a type of fragmented forest, has lead to research regarding community structure/dynamics, habitat functions, and physicalenvironment. Research has spread, both quantitatively and qualitatively, to the effects of social factors on forest structure/dynamics, such as management both within and around the forest, separation of Shinto and Buddhism and policy such as the Urban Parks Law. Research has elucidated the need to assess the functions of shrine/ temple forests from a large-scale perspective and to consider human and social factors in addition to ecological factors. In addition, we now have a scientific basis to argue that human management is essential in order to utilize shrine/temple forests as central urban green space. We must accumulate and integrate research at multiple scales using multiple methods for future conservation and management of not only shrine/temple forests, but urban green space in general.Japan Association for Landscape Ecology, 2007, 景観生態学, 12:1-7(1) (1), 1 - 7, Japanese[Refereed]
- 日本生物科学者協会, 2007, 生物科学, 59:57-61(1) (1), 57 - 61,図巻頭1p, Japanese樹木はどこまで大きくなれるのか?―世界最大の樹木,ジャイアントセコイアの生理学的研究―[Refereed]Scientific journal
- 2007, 日本森林学会誌, 89:160-166, Japanese京都府北部の無間伐ヒノキ高齢林における斜面位置と林分構造の関係[Refereed]Scientific journal
- Heron Publishing, 2007, Tree Physiology, 27(11) (11), 1595 - 1605, English[Refereed]Scientific journal
- Jun. 2006, AGROFORESTRY SYSTEMS, 67(2) (2), 135 - 145, English[Refereed]Scientific journal
- May 2006, Canadian Journal of Forest Research, 36(2) (2), English[Refereed]Scientific journal
- Apr. 2006, JOURNAL OF FORESTRY, 104(3) (3), 113 - 117, EnglishThe use of arthropods as indicators of ecosystem integrity in forest management[Refereed]Scientific journal
- Apr. 2006, 日本森林学会誌, 88:290-301, JapaneseTree architecture research for integrating tree physiology and forest community dynamics[Refereed]Scientific journal
- 2006, Humans and Nature, (16) (16)Scientific journal
- 2006, Nihon Ringakkai Shi/Journal of the Japanese Forestry Society, 88(4) (4)Scientific journal
- 2006, 人と自然, 16:51-56, Japanese西宮神社社叢林における台風によるクスノキ老齢木の被害[Refereed]Scientific journal
- 2006, Journal of Forestry, 104:113-117, EnglishArthropods as indicators of biological diversity in temperate forest ecosystems[Refereed]Scientific journal
- 2005, Humans and Nature, (15) (15)Scientific journal
- 日本生物科学者協会, 2005, 生物科学, 57 49-53(1) (1), 49 - 53, Japanese樹高成長の限界はどこまでか? -樹高100mのセコイアメスギの樹冠を調べる-[Refereed]Scientific journal
- 2005, 人と自然, 15 29-42, 29 - 42, Japanese孤立社寺林の植生構造にみられる林縁効果[Refereed]Scientific journal
- Variation in kayu putih(Melaleuca leucadendron LINN) oil quality under different farming systems in Java, IndonesiaArticlesHokkaido University Forests, EFRC, 2005, Eurasian Journal of Forest Research, 8・1・15-20(1) (1), 15 - 20, English[Refereed]Scientific journal
- Jan. 2005, AGROFORESTRY SYSTEMS, 64(2) (2), 143 - 155, English[Refereed]Scientific journal
- 2005, Nature and Human Activities, 9 47-56(9) (9), English[Refereed]Scientific journal
- Sep. 2004, ANNALS OF BOTANY, 94(3) (3), 333 - 343, EnglishScientific journal
- Jul. 2004, CANADIAN JOURNAL OF BOTANY-REVUE CANADIENNE DE BOTANIQUE, 82(7) (7), 892 - 909, English[Refereed]Scientific journal
- Jun. 2004, FOREST SCIENCE, 50(3) (3), 342 - 355, EnglishExploring the relationships among canopy structure, stand productivity, and biodiversity of temperature forest ecosystems[Refereed]Scientific journal
- 2004, Forest Canopies: Second EditionScientific journal
- Measurement of three-dimensional morphology and surface area of conifer shoots and roots using the desktop scanner and silhouette image analysis.ArticleHokkaido University Forests, EFRC, 2004, Eurasian Journal of Forest Research., 7:27-32(1) (1), 27 - 32, English[Refereed]Scientific journal
- Kobe University, 2004, Memoires of the Graduate School of Science and Technology, Kobe University., 22:143-150, 143 - 150, EnglishBoundary-line analysis of tree growth and photosymthesis.[Refereed]Scientific journal
- May 2003, TREE PHYSIOLOGY, 23(7) (7), 453 - 461, EnglishAcclimation of shoot and needle morphology and photosynthesis of two Picea species to differences in soil nutrient availability[Refereed]Scientific journal
- Comparative crown form and branching pattern of four coexisting tree species in an old-growth Pseudotsuga-Tsuga forest.ArticleHokkaido University Forests, EFRC, 2003, Eurasian Journal of Forest Research., 6:99-109(2) (2), 99 - 109, English[Refereed]Scientific journal
- Oct. 2002, FOREST ECOLOGY AND MANAGEMENT, 169(3) (3), 257 - 270, EnglishAge-related development of crown structure in coastal Douglas-fir trees[Refereed]Scientific journal
- Jun. 2002, OECOLOGIA, 132(1) (1), 12 - 20, English[Refereed]Scientific journal
- Jan. 2002, TREE PHYSIOLOGY, 22(1) (1), 31 - 40, EnglishVariation in specific needle area of old-growth Douglas-fir in relation to needle age, within-crown position and epicormic shoot production[Refereed]Scientific journal
- 2002, Canadian Journal of Botany, 80(9) (9), 916 - 926, English[Refereed]Scientific journal
- 2002, FOLIA GEOBOTANICA, 37(1) (1), 63 - 69, EnglishPersistence of Pseudotsuga menziesii (Douglas-fir) in temperate coniferous forests of the Pacific Northwest Coast, USA[Refereed]Scientific journal
- Jul. 2001, CANADIAN JOURNAL OF FOREST RESEARCH-REVUE CANADIENNE DE RECHERCHE FORESTIERE, 31(7) (7), 1250 - 1261, EnglishCrown structure of old-growth Douglas-fir in the western Cascade Range, Washington[Refereed]Scientific journal
- Apr. 2001, OIKOS, 93(1) (1), 153 - 160, EnglishThe method of synthesis in ecology[Refereed]Scientific journal
- 2001, Canadian Journal of Botany, 79(3) (3), 251 - 264, English[Refereed]Scientific journal
- Jun. 2000, FOREST ECOLOGY AND MANAGEMENT, 131(1-3) (1-3), 81 - 91, EnglishBranch growth and crown form in old coastal Douglas-fir[Refereed]Scientific journal
- 2000, Japanese Journal of Ecology, 50(1) (1)Scientific journal
- The Ecological Society of Japan, 2000, 日本生態学会誌, 50:65-70(1) (1), 65 - 70, JapaneseScientific journal
- Jan. 2000, CANADIAN JOURNAL OF FOREST RESEARCH-REVUE CANADIENNE DE RECHERCHE FORESTIERE, 30(1) (1), 17 - 24, EnglishHeight growth and vertical development of an old-growth Pseudotsuga-Tsuga forest in southwestern Washington State, USA[Refereed]Scientific journal
- Jul. 1997, NEW PHYTOLOGIST, 136(3) (3), 443 - 453, EnglishEffects of the spatial arrangement of aerial stems and current-year shoots on the demography and growth of Hydrangea hirta in a light-limited environment[Refereed]Scientific journal
- 1995, Tropics, Domestic magazineScientific journal
- 1995, Tropics, 4: 239-245(2) (2), 239 - 245, EnglishTree architecture in Ocotea (Lauracea): do ant- inhabited species differ structurally from non-ant-inhabited species?[Refereed]Scientific journal
- 2024, 日本森林学会大会学術講演集, 135thヤクスギ林冠と地上土壌における菌根菌群集の比較
- 2023, 日本生態学会大会講演要旨(Web), 70thMetagenomic analyses of the invertebrate diversity supported by canopy soil of old growth Cryptomeria japonica forest in Yakushima
- 2023, 日本森林学会大会学術講演集, 134th成長特性の異なるスギ品種間での樹幹加温に対する発現変動遺伝子解析
- 2023, 日本森林学会大会学術講演集, 134th九州産スギ品種の窒素利用の可塑性と撹乱に対する肥大成長の応答
- 2023, 九州森林学会大会(Web), 79th生育環境に対応したスギの細根形質の変化の品種による違い-地域および斜面位置の違いに着目して-
- 東京 : 日本緑化センター, Jan. 2023, グリーン・エージ = Green age, 50(1) (1), 10 - 12, Japanese高木の成長と水輸送—樹木の寿命と健康を考える
- 東京 : 日本森林技術協会, May 2022, 森林技術, (961) (961), 8 - 11, Japaneseトクシュウ ミジカ ナ モリ 「 シャソウ 」 : ニホン ノ シンリン ブンカ ト ソノ イジ カンリ
- Oct. 2021, 48(10) (10), 6 - 9, Japaneseアーバンフォレストリーの評価と実践 (特集 都市のグリーンインフラとしての樹木・樹林の活用)
- Recognizing conservation values of large, old trees in a temperate old-growth forest from an ecological context : a case study of a canopy vascular plant community and arboreal soils in Japan老齢天然林を有する京都大学芦生研究林の保存木の一つである樹高38m・胸高直径約355cmのカツラにツリークライミングによってアクセスし,着生する維管束植物群集とその環境特性を調査した。その結果,2017年時点で39種(高木24種, 低木12種, つる植物4種, 草本11種(うち7種がシダ類))が確認され,真性着生植物(obligate epiphytes) が8種(うち5種が希少種),通常地生性を示す偶発的着生植物(accidental epiphytes)が31種(うち1種が希少種)であった。偶発的着生植物にはシカ嗜好性種が多く含まれていた。保存木のカツラの樹形は,地上から約5mまでは大径の単幹で,その上部で複数の大径の幹にわかれた樹形の周辺に厚さ10cm以上堆積した有機物層(厚層林冠土壌)が形成され,最も多くの着生植物種が出現した。そこで,着生植物に対する林冠土壊の窒素可給性について調査した結果, 場所の違い(林冠・地上)よりも土層の違い(有機物暦・鉱質土暦)で規定された。表層から10cmまでの土壊に含まれる無機態窒素量の比較では,厚層林冠土壌は地上土壌(堆積有機物層と鉱質土層)の約半分を有し,硝酸態窒素量は少なかったが,アンモニウム態窒素は同等を有していた。分解作用を担う微生物の群集構造は林冠土壌と地上土壊間で異なっていたものの,微生物群集の機能的冗長性や硝化速度に関わるアンモニア酸化微生物の量が維持されることで,林冠土壊は維管束着生植物に利用可能な窒素を供給していることが示唆された。保存木のカツラの樹冠上部では日平均気温や気温の日格差が大きく,平均層厚が2cmの薄層林冠土壌が生育基盤となっていたが, 着生植物は高い葉の水利用効率によってこのような環境に順応していると考えられた。長きにわたり生存する貴重な生物としての巨樹そのものの生物学的価値に加えて,巨樹の生態学的な役割についても把握し,それらを共に保全していくことが必要である。関西自然保護機構, Aug. 2021, 地域自然史と保全 = Bulletin of Kansai Organization for Nature Conservation, 43(1) (1), 71 - 82, Japanese
- 日本海側(大山,白山,白神山地)と太平洋側(段戸山,三峰山,鷹ノ巣山)のブナ天然林を対象に,ヨーロッパブナで報告された乾燥関連性遺伝子27遺伝子領域の一塩基多型(以下,SNP)のブナへの適用可能性を試みた。その結果,10遺伝子領域がブナに適用可能であり,このうちSNPの変異性の高い4遺伝子領域を選別した。日本海側と太平洋側の地域間における遺伝的分化は非翻訳領域・同義置換領域で認められたが,非同義置換領域では認められなかった。最も集団サイズが小さく孤立化している鷹ノ巣山集団では,非同義置換をともなうSNPの対立遺伝子頻度が他の集団と異なり,アミノ酸の性質に変化をともなう遺伝的浮動の効果の可能性が示唆された。中部森林学会事務局, 30 May 2021, 中部森林研究, 69, 5 - 8, Japanese[Refereed]
- [in Japanese]THE JAPANESE FORESTRY SOCIETY, 24 May 2021, The Japanese Forest Society Congress, 132, 439, Japanese
- [in Japanese]THE JAPANESE FORESTRY SOCIETY, 24 May 2021, The Japanese Forest Society Congress, 132, 162, Japanese
- Tree Health Research Society, Japan, 30 Apr. 2020, Tree and Forest Health, 24(2) (2), 110 - 111, Japanese
- Sep. 2019, AsiaFlux2019 Conference Proceedings, 154 - 154, EnglishContribution of whole-tree water storage to daily transpiration in conifer treesIntroduction international proceedings
- THE JAPANESE FORESTRY SOCIETY, 2019, The Japanese Forest Society Congress, 130(0) (0), 297 - 297, Japanese
[in Japanese]
- THE JAPANESE FORESTRY SOCIETY, 2019, The Japanese Forest Society Congress, 130(0) (0), 324 - 324, Japanese
[in Japanese]
- THE JAPANESE FORESTRY SOCIETY, 2019, Journal of the Japanese Forest Society, 101(5) (5), 221 - 226, Japanese
Preventing invasion and expansion of exotic species into urban forests is an important current issue. In Japan, Ligustrum lucidum Ait., an invasive tree, has escaped into urban forests, and could compete with Ligustrum japonicum Thunb., a congenetic native species. Here, we measured intra- and inter-individual variation (plasticity) of leaf functional traits of the two species to compare their acclimation and adaptation potentials to variable light environments. We found no difference between species in intra-individual plasticity of leaf functional traits (leaf mass per area, chl and N contents per leaf area, and maximum photosynthetic rate). For many traits, inter-individual plasticity was greater for L. lucidum. This difference was due to the low plasticity of L. japonicum trees artificially planted in high-light conditions because, for example, the plasticity of photosynthetic rate of L. japonicum in its native light range was similar to that of L. lucidum. Our study suggested that the high photosynthetic capacity of L. lucidum resulting in fast growth in high-light environments such as the forest edge, may contribute to its invasiveness. In addition, L. lucidum exhibits high acclimation potential of leaf functional traits across a wide range of light environments, which could contribute to its invasion and expansion not only at the forest edge, but also the forest interior, where it could potentially compete with L. japonicum.
- 2018, 生物学者、地球をいく(編集 小林真、工藤岳), Japanese樹高100メートルの世界からIntroduction commerce magazine
- 雨水貯留浸透技術協会, 2018, 水循環 = Journal of hydrological system : 貯留と浸透, 109, 18 - 22, JapaneseCreating healthy urban forests using Green Infrastructure
- Oct. 2017, TREE PHYSIOLOGY, 37(10) (10), 1263 - 1268, English[Refereed]Others
- In Fagus crenata, mean leaf size and difference in sun- vs. shade-leaf morphology are both larger for northern populations. Here, we compared within-crown variation in leaf morphology among five populations to elucidate regional differences in phenotypic plasticity and infer genetic and environmental factors that influence it. Morphological plasticity of leaves was more strongly correlated with relative height in the crown (leaf height / tree height) than with canopy openness. We inferred this was because relative height reflected both light environment and water status of leaves. Regional differences in plasticity of leaf area in relation to canopy openness corresponded to genetic lineages of the populations sampled. Whereas, that of leaf thickness and specific leaf area (leaf area / leaf dry mass) in relation to relative height did not correspond to genetic lineages. In all regions, leaf thickness converged to approximately 0.25 mm at relative height≒0.5 and plasticity resulted from leaves becoming thicker/thinner with increasing/decreasing height, respectively. At the tree top, specific leaf area converged to a minimum value of 0.1 m2 g‒1 and regions with greater specific leaf area in the lower crown had greater plasticity. Leaf morphological plasticity was greater in regions that had more extreme climatic conditions, suggesting that it represents adaptive plasticity in response to climatic variation.The Society of Applied Forest Science, Aug. 2017, Applied Forest Science, 26(2) (2), 1 - 7, Japanese
- Tree Health Research Society, Japan, 2017, Tree and Forest Health, 21(1) (1), 22 - 23, Japanese
- THE JAPANESE FORESTRY SOCIETY, 2017, The Japanese Forest Society Congress, 128(0) (0), 541 - 541, Japanese
[in Japanese]
- THE JAPANESE FORESTRY SOCIETY, 2017, The Japanese Forest Society Congress, 128(0) (0), 390 - 390, Japanese
[in Japanese]
- [in Japanese]THE JAPANESE FORESTRY SOCIETY, 2016, The Japanese Forest Society Congress, 127(0) (0), 310 - 310, Japanese
- [in Japanese]THE JAPANESE FORESTRY SOCIETY, 2016, The Japanese Forest Society Congress, 127(0) (0), 316 - 316, Japanese
- [in Japanese]THE JAPANESE FORESTRY SOCIETY, 2016, The Japanese Forest Society Congress, 127(0) (0), 317 - 317, Japanese
- 一般社団法人 日本土壌肥料学会, 2016, 日本土壌肥料学会講演要旨集, 62(0) (0), 13 - 13, Japanese
- 都市化による水循環の変化は,都市環境問題の要因となっている。これに対しメルボルン市では,都市内の水循環を包括的に管理する Water-Sensitive Urban Design (WSUD) の概念に基づいた市街地整備が行われている。その一つに都市緑地を活用した水循環の管理があり,同市の都市緑地の管理手法はオーストラリア全土の管理手法の基盤となっている。本稿では同市における都市緑地管理および雨水を利用した都市緑地潅水システムの開発について紹介する。オーストラリア南部ビクトリア州では, 2006年から 2010年の干ばつにより,都市緑地も大きな被害を受けた。この経験を踏まえ同市は健全で高い多様性を保持する都市緑地を創造することを目指している。そのため市内全域で公有緑地の現状把握を行い,都市緑地の将来の状況を予測,モデリングするための取り組みやツールを確立した。また市街地の緑地では,流出雨水を利用した統合的潅水システムを導入した。これにより,洪水のリスク緩和と都市緑地への十分な潅水が期待されている。同市における WSUDの取り組みは,環境に配慮した都市緑地管理に関する示唆に富んでいる。JAPANESE SOCIETY OF REVEGETATION TECHNOLOGY, 2016, Journal of the Japanese Society of Revegetation Technology, 42(3) (3), 455 - 459, Japanese
- 26 Mar. 2015, 日本森林学会大会学術講演集, 126th, 208, Japaneseミズナラとプナの林冠木における道管形成および個葉光合成の季節変化とシンクソースバランス
- [in Japanese]THE JAPANESE FORESTRY SOCIETY, 2015, The Japanese Forest Society Congress, 126(0) (0), 296 - 296, Japanese
- [in Japanese]THE JAPANESE FORESTRY SOCIETY, 2015, The Japanese Forest Society Congress, 126(0) (0), 360 - 360, Japanese
- [in Japanese]THE JAPANESE FORESTRY SOCIETY, 2015, The Japanese Forest Society Congress, 126(0) (0), 79 - 79, Japanese
- [in Japanese]THE JAPANESE FORESTRY SOCIETY, 2015, The Japanese Forest Society Congress, 126(0) (0), 98 - 98, Japanese
- アーバンフォレストリーは,都市緑地および周辺の天然林を連続した生態系として持続的に管理する都市型森林管理である。本稿では, 2013~14年に行われたアーバンフォレストリーに関する 2つの国際学会に共通するテーマである都市緑地における生物多様性について,欧米の動向を紹介する。都市緑地において多様な樹種を植栽することは,生物多様性の創出だけでなく,伝染病や害虫被害のリスクを分散・低下させ,都市林の安定的な維持管理につながる。植栽樹種を選定する際は,種の由来(外来種・在来種) だけでなく,多様性や病害虫への抵抗性,持続可能性などといった,実用性で判断するのが現実的である。日本においても,都市緑地とかつての里山を含む都市近郊林を有機的に統合し,持続的に管理していくことによって,天然林や植栽林など,様々な由来の緑地を含む日本型アーバンフォレストが創生され,豊かな地域生態系が実現すると考えられる。JAPANESE SOCIETY OF REVEGETATION TECHNOLOGY, 2015, Journal of the Japanese Society of Revegetation Technology, 40(3) (3), 505 - 507, JapaneseIntroduction scientific journal
- 2014, What’s Up? The Newsletter of the International Canopy Network, EnglishClimbing and Researching the Tallest Trees in Japan.Introduction scientific journal
- [in Japanese]THE JAPANESE FORESTRY SOCIETY, 2014, The Japanese Forest Society Congress, 125(0) (0), 323 - 323, Japanese
- [in Japanese]THE JAPANESE FORESTRY SOCIETY, 2014, The Japanese Forest Society Congress, 125(0) (0), 351 - 351, Japanese
- [in Japanese]THE JAPANESE FORESTRY SOCIETY, 2014, The Japanese Forest Society Congress, 125(0) (0), 587 - 587, Japanese
- 日本蘚苔類学会, 2013, 蘚苔類研究, 10(12) (12), 430 - 430, Japanese
- To elucidate the effects of understory vegetation on arthropod diversity after line thinning, we investigated changes in ant community structure after experimental removal of understory vegetation in a line-thinned stand and an adjacent control stand. There was no difference in the number of ant species found in the two stands. The ant community structure of the line-thinned stand was characterized by habitat generalists, whereas that of the control stand was characterized by woodland specialists. Understory removal affected differently the community structure of the two stands. In the line-thinned stand, the effect may be small because the community was characterized by species with high environmental adaptability, whereas in the control stand, the community, which is characterized by species adapted to closed canopy environments, may be more sensitive to disturbances. Although the effect of understory removal on ant community structure was small compared to that of stand thinning, maintaining a diverse understory following canopy closure after intense thinning may increase ant species diversity by allowing habitat generalists and woodland specialists to coexist.THE JAPANESE FORESTRY SOCIETY, 2013, Journal of the Japanese Forest Society, 95(2) (2), 95 - 100, Japanese
- レーザーリモートセンシング技術の発展により、これまで不可能であった樹木構造把握が可能となってきた。本研究では地上レーザーを用いて詳細に樹木構造データを取得し、3次元点群データから樹木の幹枝を分類し、各構造を測定した。樹木構造の把握は、コンピュータグラフィックの技術を用いて、レーザー点群に対し内挿する表面を作成した。地上レーザー計測を北海道から滋賀まで様々な樹種を対象に行い、得られたデータを解析し、現地調査したデータと比較した。現地調査は伐倒やロープ登攀によって取得した。研究結果は、胸高直径はどの樹種に対しても3cm以内の誤差で測定可能であり、樹高は地上からのレーザー照射にも関わらず、50cm以内の誤差で測定できた。地上レーザーは航空機レーザーによるデータ取得と視点が異なるため、今後効率の良いサンプル手法が必要である。また枝葉構造の把握も可能であるが、レーザー照射可能距離がセンサーによって異なることから、樹木測定に有効な照射範囲を今後考慮する必要があることがわかった。THE JAPANESE FORESTRY SOCIETY, 2013, The Japanese Forest Society Congress, 124(0) (0), 349 - 349, Japanese
- 60年生ヒノキ人工林に対して行われた強度間伐の影響を,15年後の75年生時に評価した。強度間伐によって低木層から亜高木層が発達したが,そのことにより林床の植生は衰退した。下層植生(亜高木,低木,林床)は現存量で5%を,NPPで18%を占めており,炭素固定機能に大きな貢献をしていると考えられた。下層植生の純一次生産の大半は葉リターに分配されており,土壌への炭素供給が加速化されていることが示唆された。一方で,低木層に発達した64種のうち種子散布を行っているのは11種に過ぎず,現段階では,植物の種多様性が持続されるフェーズにはいたっていないと考えられた。THE JAPANESE FORESTRY SOCIETY, 2013, The Japanese Forest Society Congress, 124(0) (0), 500 - 500, Japanese
- 2012, 応用生態工学会研究発表会講演集, 2012強度剪定後の緑化樹木の回復過程の研究
- 日本緑化センタ-, Mar. 2011, グリ-ン・エ-ジ, 38(3) (3), 38 - 42, Japanese樹木医・研究と実践の現場から(27)老大木の生理生態学
- THE JAPANESE FORESTRY SOCIETY, 2011, The Japanese Forest Society Congress, 123(0) (0), L12 - L12, Japanese
- The Ecological Society of Japan, 31 Mar. 2010, Japanese Journal of Ecology, 60(1) (1), 41 - 42, JapaneseToward quantitative and objective ecosystem management
- THE JAPANESE FORESTRY SOCIETY, 2010, The Japanese Forest Society Congress, 121(0) (0), 344 - 344, JapanesePhysiological and morphological plasticity of fine root system and shoot in response to changes in soil nutrient status
- 26 Jun. 2009, 根の研究 = Root research, 18(2) (2), 76 - 76, Japanese樹木細根呼吸量を規定しているものは何なのか? : ヒノキ林における細根形態特性および土壌栄養条件から考える
- 2006, 日本生態学会大会講演要旨集, 53rd針葉樹の樹形と生理機能の相互作用:シュート光合成の順化反応におけるシュート三次元構造と生理特性の相互寄与率
- 一般社団法人 日本土壌肥料学会, 2004, 日本土壌肥料学会講演要旨集, 50(0) (0), 21 - 21, Japanese
- 日本生態学会, 2003, 日本生態学会大会講演要旨集, 50(0) (0), 296 - 296, Japaneseカムチャツカ半島中央低地帯におけるハイマツ(Pinus pumila)のニッチと環境可塑性
- 2002, 日本生態学会大会講演要旨集, 49th林床チシマザサの除去がダケカンバ林冠葉のフェノロジーを変える 土壌条件の変化と個葉~シュートレベルでの光合成生産
- Joint work, 高木の水輸送, 共立出版, Apr. 2020木本植物の生理生態
- Joint editor, 朝倉書店, Apr. 2019, Japanese, ISBN: 9784254470543Forest EcologyScholarly book
- Joint work, 共立出版, 2013, Japaneseエコシステムマネージメント-包括的な生態系の保全と管理へ-Scholarly book
- Joint work, Springer, Oct. 2011, EnglishSize and age-related changes in tree structure and functionScholarly book
- Joint work, Kyoritsu Shuppan, Nov. 2010, JapaneseForest EcologyScholarly book
- Joint work, Elsevier Academic Press., 2004, EnglishAge-related developmnet of canopy structure in temperate forest ecosystems. (pp.102-117. In:Forest Canopies.M.D.Lowman and H.B. Rinker, eds.Scholarly book
- 日本緑化工学52回大会, Sep. 2021, Japanese自然林再生を目的とした緑化地における40年間の植生動態.Poster presentation
- The 2nd International Electronic Conference on Forests, Sep. 2021, EnglishSpatial and temporal variation of species composition and > structure of unmanaged secondary forest (abandoned *satoyama*) adjacent to > late-successional forestPoster presentation
- 9th EAFES International Congress, Jul. 2021, EnglishPreditcing succession of unmanaged secondary forest from spatio-temporal variation of stand structure relative to the adjacent late-successional forestPoster presentation
- 中部森林学会, Dec. 2020SSRマーカーとSCoTマーカーを用いたブナ集団の地理的な遺伝的変異パターンの比較
- 第131回日本森林学会大会, Mar. 2020, JapaneseVariation of intra-crown leaf plasticity of Fagus crenata across its geographical range in JapanOral presentation
- 67th Ecological Society of Japan Meeting, Mar. 2020, JapaneseAcclimation and tolerance of urban trees to high temperaturesPoster presentation
- 66th Ecological Society of Japan, Mar. 2019, Japanese, Kobe, Domestic conference都市林における常緑広葉樹種の葉の光合成形質の可塑性Poster presentation
- 第130回日本森林学会, Mar. 2019, Japanese, 新潟, Domestic conference都市林における外来種トウネズミモチと在来樹種との競合の可能性Poster presentation
- 66th Ecological Society of Japan, Mar. 2019, Japanese, Kobe, Domestic conferenceクスノキ老大木の通水構造(2) 老木と成木の通水構造の比較Poster presentation
- 第69回木材学会大会, Mar. 2019, Japanese, 日本木材学会, 函館, Domestic conferenceクスノキの排水した道管への再注水に対する柔細胞類の寄与Poster presentation
- 第130回森林学会大会, Mar. 2019, Japanese, 日本森林学会, 新潟, Domestic conferenceクスノキの排水した道管への再注水に対する柔細胞類の寄与Poster presentation
- 66th Ecological Society of Japan, Mar. 2019, English, Kobe, Domestic conferenceStructure and function of forest canopies: from world-record trees to plantationsPublic symposium
- 66th Ecological Society of Japan, Mar. 2019, English, Kobe, Domestic conferenceHeight-related variations of leaf traits reflect strategies for maintaining photosynthetic and hydraulic homeostasis in tall Pinus densiflora treesOral presentation
- 第23回樹木医学会, Oct. 2018, Japanese, FUKUOKA, Domestic conference都市緑化におけるトウネズミモチとネズミモチの競合の可能性Poster presentation
- 第49回日本緑化工学会, Sep. 2018, Japanese, 東京, Domestic conference侵入性外来樹木トウネズミモチの生理特性に関する研究Poster presentation
- 第49回日本緑化工学会, Sep. 2018, Japanese, 東京, Domestic conference屋上緑化現場での強風に対する生理・形態的応答樹種間比較Poster presentation
- 8th International Congress of the East Asian Federation of Ecological Societies, Apr. 2018, English, International conferenceLarge Cryptomeria trees retained after intensive logging functioned as refugia for canopy woody plants in YakushimaPoster presentation
- 8th International Congress of the East Asian Federation of Ecological Societies, Apr. 2018, English, International conferenceHeight-related changes in hydraulic structure of old Cinnamomum camphora: trade-off between hydraulic conductivity and safetyPoster presentation
- 8th International Congress of the East Asian Federation of Ecological Societies, Apr. 2018, English, NAGOYA, International conferenceCanopy vascular plant community and arboreal soil characteristics on a large, long-lived Cercidiphyllum japonicum tree in a temperate forestPoster presentation
- 第65回日本生態学会大会, Mar. 2018, Japanese, 札幌, Domestic conference都市環境における風に対する樹木の生理・形態的応答Poster presentation
- 第65回日本生態学会大会, Mar. 2018, Japanese, 札幌, Domestic conference芦生研究林内保存木の保全生態学的研究-着生植物群集と林冠土壌-Poster presentation
- 第65回日本生態学会大会, Mar. 2018, Japanese, 札幌, Domestic conferenceクスノキ老大木の通水構造:高さにともなう通水性と安全性のトレードオフPoster presentation
- 9thPacific Regional Wood Anatomy Conference, Sep. 2017, English, Bali, Indonesia, International conferenceSeasonal changes of leaf photosynthetic rate, stored starch and vessel formation in shoots and tree stems of two deciduous broad-leaved tree speciesPoster presentation
- 26th IUFRO Conference for Specialists in Air Pollution and Climate Change Impacts on Forest Ecosystems, Sep. 2017, English, Tokyo, International conferencePhenotypic plasticity of Fagus crenata: implications for persistence under climate changePoster presentation
- 9th Pacific Regional Wood Anatomy Conference, Sep. 2017, English, Bali, Indonesia, International conferenceAnatomy and hypothetical experiments to demonstrate the role of parenchyma and tracheids to keep water conduction in Cinnamomum camphora (L.) J. Presl.Poster presentation
- 第128回日本森林学会, Mar. 2017, Japanese, 鹿児島大学, Domestic conference気候条件からみたブナの葉の表現型可塑性Poster presentation
- 第64回日本生態学会, Mar. 2017, Japanese, 早稲田大学, Domestic conferenceブナの表現型可塑性とその地域変異Poster presentation
- 樹木医学会21回大会, Nov. 2016, Japanese, 樹木医学会, 神戸市, Domestic conferenceマツ枯れ・ナラ枯れ後の里山二次林における維持管理手法の検討Oral presentation
- 第67回応用森林学会, Nov. 2016, Japanese, 愛媛大学, Domestic conferenceブナの葉における形態的可塑性の地域間差Oral presentation
- 第21回樹木医学会, Nov. 2016, Japanese, 神戸大学, Domestic conferenceコノテガシワ園芸品種における葉枯れは水ストレスが関与している?Poster presentation
- The 9th International Symposium of Pine Wilt Disease, Aug. 2016, English, IUFRO, 韓国、ソウル市, International conferenceSustainable management of "Satoyama" secondary forest after the extensive damages by pine wilt in the western JapanPoster presentation
- 第63回日本生態学会大会, Mar. 2016, Japanese, 仙台, Domestic conference放置里山林における森林再生を考慮した資源利用の検討Poster presentation
- 第127回日本森林学会大会, Mar. 2016, Japanese, 藤沢, Domestic conference顕微赤外分光法による高木のスギ針葉の水分保持メカニズムの解明Poster presentation
- 第63回日本生態学会大会, Mar. 2016, Japanese, 仙台, Domestic conferenceヒノキ樹冠部における鱗状葉の通水性維持-transfusion tissueの役割Poster presentation
- 第127回日本森林学会大会, Mar. 2016, Japanese, 藤沢, Domestic conference100年生ヒノキ鱗状葉の通水性維持機構Poster presentation
- 2nd International Conference on Urban Tree Diversity, Feb. 2016, English, Melbourne, International conferenceVisualizing and evaluating secondary forest restoration success using Bray-Curtis ordination: case studies from JapanOral presentation
- 2nd International Conference on Urban Tree Diversity, Feb. 2016, English, Melbourne, International conferenceVegetation recovery after removal of invasive Trachycarpus fortunei in a fragmented urban shrine forestPoster presentation
- 2nd International Conference on Urban Tree Diversity. 2016.2 (Melbourne)., Feb. 2016, English, International conferenceLeaf withering in ornamental cultivars of Thuja orientalis may be caused by water stressPoster presentation
- 第66回応用森林学会, Oct. 2015, Japanese, 岡山, Domestic conferenceヒノキ鱗状葉の形態と生理機能に関する研究Oral presentation
- 第45回日本緑化工学会大会, Sep. 2015, Japanese, 藤沢, Domestic conference施工後35年が経過した緑化地における木本群落回復の定量的評価Poster presentation
- 第62回日本生態学会, Mar. 2015, Japanese, 鹿児島, Domestic conference天然林‐人工林エコトーンにおける植生変化Poster presentation
- 第126回日本森林学会, Mar. 2015, Japanese, 札幌, Domestic conference天然性二次林の群落構造は再現できるのか?-定量的評価法の開発―Poster presentation
- 126回日本森林学会大会, Mar. 2015, Japanese, 日本森林学会, 札幌, Domestic conference天然性二次林の群落構造は再現できるのか? ―定量的評価法の開発―Poster presentation
- 第62回日本生態学会大会, Mar. 2015, Japanese, 日本生態学会, Domestic conference西宮神社社叢林における侵入種除去後の植生回復Poster presentation
- 第62回日本生態学会大会, Mar. 2015, Japanese, 鹿児島, Domestic conference照葉樹高木の葉の形態・生理特性:個体内・個体間における可塑性の違いPoster presentation
- 第126回日本森林学会, Mar. 2015, Japanese, 札幌, Domestic conference樹齢300年前後の天然秋田スギの肥大成長特性: 個体特性とサイズ、競争および環境効果の統合的モデリングOral presentation
- 第62回日本生態学会大会, Mar. 2015, Japanese, 鹿児島, Domestic conference樹上の世界に魅せられて-針葉樹の高木・老木における生理生態学的研究Oral presentation
- 第62回日本生態学会大会, Mar. 2015, Japanese, 日本生態学会, 鹿児島, International conference自然回復緑化における群落再生の評価方法Poster presentation
- 第126回日本森林学会, Mar. 2015, Japanese, 札幌, Domestic conference最大樹高に達した異樹齢アカマツにおける葉の生理特性の比較Poster presentation
- 第126回日本森林学会, Mar. 2015, Japanese, 札幌, Domestic conferenceミズナラとブナの林冠木における道管形成および個葉光合成の季節変化とシンクソースバランスOral presentation
- URBIO 2014 International Network on Urban Biodiversity and Design Conference, Oct. 2014, English, International Consortium of Landscape and Ecological Engineering, Incheon, International conferenceVegetation recovery after removal of invasive Trachycarpus fortunei in an urban shrine forest in JapanPoster presentation
- URBIO 2014 International Network on Urban Biodiversity and Design Conference, Oct. 2014, English, International Consortium of Landscape and Ecological Engineering, Incheon, International conferenceJapanese oak wilt and grazing damage by shika deer are threatening the health of secondary forests, "satoyama"Poster presentation
- 第25回日本緑化工学会大会, Sep. 2014, Japanese, 日本緑化工学会, 帯広, International conference造成後約40年経過した大阪万博記念公園樹林地の林分構造Poster presentation
- 第24回日本景観生態学会大会, Jun. 2014, Japanese, 景観生態学会, 金沢, International conference西宮神社社叢林における5年間の植生構造の変遷Poster presentation
- International Conference on Urban Tree Diversity, Jun. 2014, English, ISA, Alnarp, International conferencePursuing a moving target: restoration of natural secondary forests in urban JapanPoster presentation
- International Conference on Urban Tree Diversity, Jun. 2014, English, International Society for Arboriculture, Alnarp, International conferenceOvipositing preferences of Japanese gypsy moth in a suburban secondary forest in western JapanPoster presentation
- International Conference on Urban Tree Diversity, Jun. 2014, English, ISA, Alnarp, International conferenceDoes adjacent late-successional forest prevent plagiosere of fragmented and abandoned secondary forest in sub-urban Japan?Oral presentation
- 日本生態学会近畿地区会, Apr. 2014, Japanese, 日本生態学会, 大阪, Domestic conferenceMoving Target-遷移する目標林と自然回復緑化Oral presentation
- 日本生態学会, Mar. 2014, Japanese, 広島, Domestic conference照葉樹の葉の光順化における可塑性の比較,第61回日本生態学会大会Poster presentation
- 第61回日本生態学会大会,PA2-175, Mar. 2014, Japanese, 日本生態学会, 広島, Domestic conference自然林再生を目的とした緑化地における植生遷移Poster presentation
- 第64回日本木材学会大会, Mar. 2014, Japanese, 日本木材学会, 松山, Domestic conferenceTransfusion tissueは樹高50m秋田スギ針葉内の貯水に寄与するのかPoster presentation
- 日本緑化工学会23回大会, 2013, Japanese, 鳥取, Domestic conference神戸層群における天然林再生を目的とした法面緑化:10年後の経過報告Poster presentation
- 日本景観生態学会23回大会, 2013, Japanese, 盛岡, Domestic conference植栽後10 年が経過した自然林再生緑化地の景観評価Poster presentation
- 第59回日本生態学会, 2013, Japanese, 静岡, Domestic conference高木の樹冠における水ストレスと葉の水分生理特性:樹高100mのセコイアメスギにみられる調節メカニズムOral presentation
- 日本蘚苔類学会第42回大会, 2013, Japanese, 岡山, Domestic conference屋久杉に着生する蘚苔類の分布と生態的特徴Poster presentation
- 第18回日本植生学会, 2013, Japanese, 仙台, Domestic conferenceヤクスギ老齢木に着生する木本植物群落Oral presentation
- 第77回日本植物学会大会, 2013, Japanese, 札幌, Domestic conferenceヒノキの非同化器官表面積のスケーリングOral presentation
- 第63回日本木材学会, 2013, Japanese, 盛岡, Domestic conferenceセコイアメスギの葉には、高さにともなう水ストレスの影響を緩和する機能があるか?Poster presentation
- 123回日本森林学会大会, 2012, Japanese, 宇都宮, Domestic conference森林の三次元構造計測:技術と応用Oral presentation
- 第2回ELR合同大会, 2012, Japanese, 東京, Domestic conference強度剪定後の緑化樹木の回復過程の研究.第2回ELR合同大会Poster presentation
- 植生学会第17回大会, 2012, Japanese, 千葉, Domestic conference屋久杉に着生する蘚苔類の垂直分布Poster presentation
- 123回日本森林学会大会, 2012, Japanese, 宇都宮, Domestic conferenceレーザー測量によるヒノキ人工林のバイオマス推定Oral presentation
- 5th East Asian Federation of Ecological Societies International Congres, 2012, English, Ohtsu, International conferenceSucculent tree-top leaves of tall Sequoia sempervirens store waterPoster presentation
- 5th East Asian Federation of Ecological Societies International Congres, 2012, English, Ohtsu, International conferenceDoes within-canopy plasticity increase stand productivity?Poster presentation
- 第122回日本森林学会大会, 2011, Japanese, 静岡, Domestic conference林冠の三次元構造と多様性・生産性の関係Oral presentation
- 第122回日本森林学会大会, 2011, Japanese, 静岡, Domestic conference壮齢人工林の3次元構造と一次生産Oral presentation
- 日本景観生態学会第21回大会, 2011, Japanese, 千葉, Domestic conference常緑広葉樹林に隣接する里山放棄林の植生動態Poster presentation
- 日本生態学会近畿地区会2011年度第2回例会, 2011, Japanese, Domestic conference樹上100mの水ストレス?セコイアメスギの葉の水分生理特性Oral presentation
- 第122回日本森林学会大会, 2011, Japanese, 静岡, Domestic conference異なる年次および立地におけるスギクローンの光合成特性Poster presentation
- 第122回日本森林学会大会, 2011, Japanese, 静岡, Domestic conferenceスギ列状間伐林における環境要因が及ぼすアリ群集構造の変異Poster presentation
- 第42回日本緑化工学会大会, 2011, Japanese, 千葉, Domestic conferenceクスノキ挿木苗の生理・形態特性 : 実生苗との比較Poster presentation
- 日本昆虫学会近畿支部2010年度大会, Dec. 2010, Japanese, 兵庫県立人と自然の博物館、三田市, Domestic conferenceスギ人工林における列状間伐後のアリ種組成の変化Oral presentation
- 121回日本森林学会大会, 2010, Japanese, つくば, Domestic conference不成績造林地における地上部生産量の地形と植栽木の影響Poster presentation
- 第57回日本生態学会大会, 2010, Japanese, 東京, Domestic conference屋久島針広混交林の階層構造Poster presentation
- 121回日本森林学会大会, 2010, Japanese, つくば, Domestic conference異質土壌環境下におけるヒノキの細根およびシュートの形態的・生理的可塑性Poster presentation
- 第56回日本生態学会大会, 2009, Japanese, 盛岡, Domestic conference常緑広葉樹におけるシュート構造と通導機能Poster presentation
- 第56回日本生態学会大会, 2009, Japanese, 盛岡, Domestic conference孤立林におけるネズミモチ・トウネズミモチの競合:異なる光環境に対する順化反応Poster presentation
- 第120回日本森林学会大会, 2009, Japanese, 京都, Domestic conference90年生ヒノキ人工林における枝・葉現存量の推定Poster presentation
- 第55回日本生態学会大会, 2008, Japanese, 福岡, Domestic conference兵庫県西宮神社社叢の植生管理-林内移植樹の明・暗順化反応-Poster presentation
- 第55回日本生態学会大会, 2008, Japanese, 福岡, Domestic conference個葉の暗順化と個体の暗順化―異なる被陰方法に対する光合成能力の変化-Poster presentation
- 第119回日本森林学会大会, 2008, Japanese, 東京, Domestic conferenceヒノキ高齢林における間伐と林分構造の関係Oral presentation
- XXIII International Congress of Entomology, 2008, English, Durban, South Africa, International conferenceThe importance of line thinning to arthropod conservation and ecosystem management in Japanese cedar (Cryptomeria japonica D. Don) plantationsOral presentation
- 日本生態学会53回大会, 2007, Japanese, 松山, Domestic conference北米冷温帯針葉樹林の下層におけるツガとモミの共存機構-光獲得と光合成の視点からPoster presentation
- 日本生態学会53回大会, 2007, Japanese, 松山, Domestic conference分枝と枝通導性の関係Poster presentation
- 日本生態学会53回大会, 2007, Japanese, 松山, Domestic conference京都府南部落葉広葉樹二次林におけるコバノミツバツツジとモチツツジの樹形とフェノロジ―Poster presentation
- 第118回日本森林学会大会, 2007, Japanese, 福岡, Domestic conference温帯林における林冠構造、生産性、生物多様性の相互作用温帯林[Invited]Invited oral presentation
- 第117回日本森林学会大会, Mar. 2006, Japanese, 東京, Domestic conference無間伐高齢ヒノキ林における斜面位置が個体間競争に及ぼす影響Oral presentation
- 第117回日本森林学会大会, 2006, Japanese, 東京, Domestic conference無間伐高齢ヒノキ林における斜面位置が個体感競争に及ぼす影響Oral presentation
- 日本生態学会52回大会, 2006, Japanese, 新潟, Domestic conference低木樹種コバノミツバツツジ(Rhododendron reticulatum)における樹冠の発達と分枝構造Poster presentation
- 日本生態学会52回大会, 2006, Japanese, 新潟, Domestic conference針葉樹の樹形と生理機能の相互作用:シュート光合成の順化反応におけるシュート三次元構造と生理特性の相互寄与率Poster presentation
- 日本生態学会52回大会, 2006, Japanese, 新潟, Domestic conference侵入種除去による孤立社寺林の植生維持・管理方法の提唱Poster presentation
- 日本生態学会52回大会, 2006, Japanese, 新潟, Domestic conference社寺林における林縁効果と侵入種問題:保全・管理への積極的な取り組みOral presentation
- 日本生態学会52回大会, 2006, Japanese, 新潟, Domestic conference孤立社寺林における20 年間の林分構造の変化Poster presentation
- International Conference on Ecological Restoration in East Asia, 2006, English, Osaka, International conferenceThe importance of line thinning toward ecosystem management in Japanese cedar (Cryptomeria japonica D. Don) plantations, centeral JapanPoster presentation
- International Conference on Ecological Restoration in East Asia, 2006, English, Osaka, International conferenceEdge effects, invasive species and ecological restoration in fragmented shrine forests in southern Hyogo Prefecture, JapanOral presentation
- 第116回日本森林学会大会, Mar. 2005, Japanese, 日本森林学会, 札幌, Domestic conference長伐期を目指して非営利的に管理された高齢ヒノキ林の林分構造-比叡山延暦寺が管理する90年生ヒノキ林の場合Oral presentation
- 日本生態学会52回大会, Mar. 2005, Japanese, 日本生態学会, 大阪, Domestic conference光環境に応じたコバノミツバツツジのモジュール構造の形態的変異Oral presentation
- 第116回日本森林学会大会, 2005, Japanese, 札幌, Domestic conference長伐期を目指して非営利的に管理された高齢ヒノキ林の林分構造- 比叡山延暦寺が管理する90年生ヒノキ林の場合Oral presentation
- 日本生態学会52回大会, 2005, Japanese, 大阪, Domestic conference光環境に応じたコバノミツバツツジのモジュール構造の形態的変異Poster presentation
- 4th International Canopy Conference, 2005, English, Leipzig, Germany, International conferenceWhat happens after maximum crown size is reached? -Adaptive reiteration as a mechanism for crown maintenanceOral presentation
- 2nd East Asian Federation of Ecological Societies International Congres, 2005, English, Osaka, International conferenceVertical change in shoot morphology within a 100m-tall Sequoia sepmervirens crownOral presentation
- 78th Annual Meeting of the Northwest Scientific Association, 2005, English, Corvallus, USA, International conferenceReiteration from epicormic buds maintains crown productivity in old-growth Douglas-fir treesOral presentation
- 78th Annual Meeting of the Northwest Scientific Association, 2005, English, Corvallus, USA, International conferenceDifferentiation of modular autonomy and correlation in the development of crown architecture of Rhododendron reticulatumPoster presentation
- 78th Annual Meeting of the Northwest Scientific Association, 2005, English, Corvallus, USA, International conferenceBiomass and decomposition of dead branches in the canopy of 450-year-old Douglas-fir treesPoster presentation
- 28th International Congress of Psychology, 2005, English, Bejiing, International conferenceA. Cross-cultural comparison on the relationship of environmental awareness and environmentally-friendly behaviorOral presentation
- 日本生態学会50回大会, 2004, Japanese, 筑波, Domestic conference里山広葉樹二次林におけるコバノミツバツツジの萌芽による個体群動態Poster presentation
- 日本生態学会51回大会, 2004, Japanese, 日本生態学会, 釧路, Domestic conference里山広葉樹二次林におけるコバノミツバツツジの樹冠の三次元解析Poster presentation
- 日本生態学会51回大会, 2004, Japanese, 日本生態学会, 未記入, Domestic conference北米温帯針葉樹林における樹上の枯死枝の現存量と分解過程Poster presentation
- 日本生態学会51回大会, 2004, Japanese, 釧路, Domestic conference北米温帯針葉樹林におかる樹上の枯死枝の現存量と分解過程Poster presentation
- 第115回日本森林学会大会, 2004, Japanese, 東京, Domestic conference北海道北部のダケカンバ林に対する林床チシマザサ除去の影響 -林冠構造,林内光環境そして林冠木の動態Poster presentation
- 第115回日本森林学会大会, 2004, Japanese, 東京, Domestic conference北海道北部のダケカンバ林に対する林床チシマザサ除去の影響Poster presentation
- 日本生態学会51回大会, 2004, Japanese, 釧路, Domestic conference兵庫県南部の孤立社寺林における林縁効果の季節変化.ポスター発表Poster presentation
- 日本生態学会51回大会, 2004, Japanese, 日本生態学会, 釧路, Domestic conference兵庫県南部の孤立社寺林における林縁効果の季節変化Poster presentation
- 日本腐植物質学会第20回講演会, 2004, Japanese, 日本腐植物質学会, 千葉, Domestic conference水溶性腐植物質の動態と構造特性Oral presentation
- 日本グループダイナミクス学会第51回大会, 2004, Japanese, 名古屋, Domestic conference環境配慮行動における日米比較研究Oral presentation
- 日本土壌肥料学会, 2004, Japanese, 日本土壌肥料学会, 福岡, Domestic conferenceリター及び土壌中の水溶性腐植物質の採取法についての検討Poster presentation
- IUFRO International Workshop on Landscape Ecology 2004, 2004, English, 未記入, Tsukuba, Japan, Domestic conferenceSeasonal variation of edge effects on the vegetation, light environment and microclimate of primary, secondary and artificial forest fragments in southeastern Hyogo Prefecture.Oral presentation
- IUFRO International Workshop on Landscape Ecology, 2004, English, Tsukuba, International conferenceSeasonal variation of edge effects on the vegetation, light environment and microclimate of primary, secondary and artificial forest fragments in southeastern Hyogo PrefectureOral presentation
- 10th Annual Scientific Meeting, Wind River Canopy Crane Research Facility., 2004, English, 未記入, Stevenson, WA., International conferenceHow Douglas-fir establishes its crown at maturity and maintains is in old age.Others
- 10th Annual Scientific Meeting, Wind River Canopy Crane Research Facility., 2004, English, 未記入, Stevenson, WA., International conferenceBiomass and decomposition of dead branches in the canopy of 450-year-old Douglas-fir trees.Poster presentation
- 第50 回日本生態学会大会講演要旨集, Mar. 2003, Japanese, 日本生態学会, つくば国際会議場, Domestic conference里山広葉樹二次林におけるコバノミツバツツジの萌芽更新による個体群動態Oral presentation
- Proceedings of the 4th North American Forest Ecology Workshop., 2003, English, 未記入, Oregon, USA., International conferenceThe importance of morphological reiteration of branches in generating complexity in forest canopies.Oral presentation
- 4th North American Forest Ecology Workshop, 2003, English, Corvallus, USA, International conferenceThe importance of morphological reiteration in generating complexity in forest canopiesOral presentation
- 10th Annual Scientific Meeting, Wind River Canopy Crane Research Facility, 2003, English, Carson, USA, International conferenceHow Douglas-fir establishes its crown at maturity and maintains is in old age.Oral presentation
- Asia International Symposium on Agriculture, 2003, English, Kobe, Japan, International conferenceDesigning a new forestry for sustainable management of landscape-level biodiversity.[Invited]Nominated symposium
- 10th Annual Scientific Meeting, Wind River Canopy Crane Research Facility, 2003, English, Carson, USA, International conferenceBiomass and decomposition of dead branches in the canopy of 450-year-old Douglas-fir treesPoster presentation
- 9th Annual Scientific Conference, 2003, English, 未記入, Carson, USA, International conferenceAmount and decomposition of coarse woody debris in the canopy of old-growth Douglas-fir trees. Wind River Canopy Crane Research FacilityOral presentation
- 9th Annual Scientific Meeting, Wind River Canopy Crane Research Facility, 2003, English, Carson, USA, International conferenceAmount and decomposition of coarse woody debris in the canopy of old-growth Douglas-fir treesOral presentation
- 日本生態学会49回大会, Mar. 2002, Japanese, 仙台, Domestic conference林床チシマザサの除去がダケカンバ林の水分導体に与える影響Oral presentation
- 日本生態学会49回大会, Mar. 2002, Japanese, 仙台, Domestic conferenceダケカンバの光合成機能の環境ストレスに対する応答Poster presentation
- 日本生態学会49回大会, Mar. 2002, Japanese, 仙台, Domestic conferenceカムチャッカ半島中央低地帯における山火事後の森林の二次遷移の空間パターンPoster presentation
- 3rd International Canopy Conference, 2002, English, Cairns, Australia, International conferenceAge-related development of crown structure in coastal Douglas-fir treesOral presentation
- 3rd International Canopy Conference, 2002, English, Cairns, Australia, International conferenceAge-related development of canopy structure and its ecological functionsOral presentation
- 7th Annual Scientific Meeting, Wind River Canopy Crane Research Facility, Mar. 2001, English, Domestic conferenceAge-related development of crown structure in coastal Douglas-fir trees.Oral presentation
- Joint Symposium of the Ecological Society of America and British Ecological Society, 2000, English, Orlando, USA, International conferenceSurvival of Pseudotsuga menzesii as a long-lived pioneer species in old-growth forest.Poster presentation
- 43rd Symposium of the International Association for Vegetation Science, 2000, English, Nagano, International conferencePersistence and change in an old-growth Pseudotsuga-Tsuga forest and the ecology of Pseudotsuga menziesii (Douglas-fir), a long-lived pioneerOral presentation
- 6th Annual Scientific Meeting, Wind River Canopy Crane Research Facility, 2000, English, Carson, USA, International conferenceA canopy perspective of community dynamics of an old-growth Pseudotsuga-Tsuga forest.Oral presentation
- 日本生態学会46回大会, Mar. 1999, Japanese, 松本, Domestic conference北アメリカ北西部 Pseudotsuga-Tsuga 温帯針葉樹林における林冠研究ー樹冠の成長・維持と林冠の発達ーPoster presentation
- 日本生態学会46回大会, Mar. 1999, Japanese, 松本, Domestic conferenceアメリカ北西部の温帯針葉樹林における P. menziesii 老齢木の樹冠維持機構Oral presentation
- 4th Annual Scientific Meeting, Wind River Canopy Crane Research Facility, 1998, English, Carson, USA, International conferenceMaximum tree height and vertical development of an old-growth coniferous forest in southwestern Washington State, USAOral presentation
- 3rd Annual Scientific Meeting, Wind River Canopy Crane Research Facility, 1997, English, Carson, USA, International conferenceCrown form and crown rejuvenation in old-growth Douglas-firOral presentation
- 81st Ecological Society of America Meeting, Aug. 1996, English, Providence, USA, International conferenceEffects of morphological constraints and herbivory on growth and ramet demography of Hydrangea hirta in a light-limited environmentPoster presentation
- Pacific Ecology Conference, 1996, English, Bamfield, Canada, International conferenceModeling branch growth in old-growth Douglas-firOral presentation
- 日本森林学会104回大会, Mar. 1995, Japanese, 札幌, Domestic conferenceコアジサイの樹形と個体群動態ー形態的制限が成長・動態に及ぼす影響ーOral presentation
- 日本生態学会41回大会, Mar. 1994, Japanese, 福岡, Domestic conferenceコアジサイのモジュール個体群動態Oral presentation
- 日本生態学会40回大会, Mar. 1993, Japanese, 松江, Domestic conferenceコアジサイのモジュール構造と季節変化Oral presentation
- International Society of Arboriculture2006 - Present
- Society of American Foresters1998 - Present
- 日本生態学会
- 日本森林学会
- Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research, Grant-in-Aid for Scientific Research (B), Kobe University, 01 Apr. 2020 - 31 Mar. 2024Evaluating physiological plasticity of trees to climate change using functional trait variation of xylem anatomy(1)宮崎大学演習林のスギクローン試験地において、スギ品種ごとの肥大成長速度、木部組織および水分通道の違いについて、木部資料の採取および測定機器の設置によって調査した。 (2)スギの物質生産に遺伝および環境要因が及ぼす影響を明らかにするために,複数の地域に設置された共通圃場において,品種による生産量,窒素利用,成長様式などの違いを定量 化する。 (3)成長特性の異なるスギ2系統の形成層帯で発現する遺伝子群の季節変化を把握するため、2系統4個体ずつから採取した組織についてRNA-seqを行った。 (4)愛媛大学農学部附属演習林において、スギ品種ごとの年輪試料採取を行い、安定同位体比測定のための試料調整を行った。 (5)鹿児島大学高隈演習林にて、スギ6品種の細根形質を調べたところ、細根形質の品種間差を確認したが、斜面位置にともなう細根形質の順応的変化は検出されなかった。
- Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research, Grant-in-Aid for Scientific Research (C), University of Tsukuba, 01 Apr. 2020 - 31 Mar. 2023Effects of tree cutting on plant and animal communities in forest canopy: implication from old-growth Yakusugi forest in Yakushima Island本研究の目的は、屋久島のヤクスギ林を対象として、林冠生態系の生物多様性の特徴とそれが維持されるのに必要な物質の動態を調査し、これらが森林伐採などの人為的攪乱によってどのように変化するのかを明らかにすることである。林冠は、生物多様性の高い空間として知られているが、人がアプローチしづらいため、科学的なデータが不足している。申請者らは、木登り技術を利用し、ヤクスギの巨木の林冠生態系について詳細な調査を行いたいと考えている。2020-2021年度は、新型コロナウイルス感染症の拡大により、現地調査やサンプル採集などを予定どおり実施することが困難であった。しかし、感染者数が比較的低く抑えられていた時期に、調査地を訪れることができ、ヤクスギの樹上の生物群集について調査を実施することができた。具体的には、調査対象とするヤクスギ個体に登攀し、林冠に堆積した落葉や土壌を採集した。採集は、1個体につき、高さの異なる2地点からとし、林冠に着生する植物などへの影響がなるべく出ない場所を選ぶこととした。採集したサンプルを対象として、ツルグレン法により、土壌動物の抽出を行った。抽出した土壌動物群集はエタノールに固定し、DNAを抽出した後、ミトコンドリアDNAのシトクロームオキシダーゼサブユニットI(COI)領域を対象としてDNAメタバーコーディング解析を実施した。その結果、無脊椎動物に由来する塩基配列(OTU;Operational taxonomic unit)を多数、検出することができた。これは、林冠に堆積した落ち葉や土壌をすみかとして、多様な生物が生息していることを示唆している。また、調査対象木の樹齢が比較的若い個体であっても、採集箇所によっては多様な土壌動物が生息していることが明らかとなった。
- 科学研究費補助金/基盤研究(B), Apr. 2016 - Mar. 2019Competitive research funding
- 学術研究助成基金助成金/挑戦的萌芽研究, Apr. 2016 - Mar. 2019, Principal investigatorCompetitive research funding
- 科学研究費一部基金/基盤研究(B)特設, Apr. 2013 - Mar. 2016Competitive research funding
- Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research, Grant-in-Aid for Scientific Research (C), Shinshu University, 2010 - 2012Effects of heavy thinning on ecosystem functions of mature Japanese cypress plantationWe surveyed the effects of heavy thinning on biodiversity and productivity of 75 years old Japanese cypress plantations. Understory vegetation was well developed, which net primary production was estimated as 15% of terrestrial part of plantation. However, the canopy closure of Japanese cypress decreased biodiversity of understory vegetation. We concluded that the effects of heavy thinning on ecosystem function are temporal, which limited for 15 years.
- 科学研究費補助金/基盤研究(B), 2011, Principal investigatorCompetitive research funding
- 科学研究費補助金/若手研究(B), 2008, Principal investigatorCompetitive research funding
- 科学研究費補助金/基盤研究(B), 2005Competitive research funding