| Project/Area Number |
26304015
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Partial Multi-year Fund |
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| Section | 海外学術 |
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| Research Field |
Ecology/Environment
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| Research Institution | Forestry and Forest Products Research Institute |
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Principal Investigator |
KUROKAWA Hiroko 国立研究開発法人森林総合研究所, 森林植生研究領域, 主任研究員 (70515733)
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| Co-Investigator(Kenkyū-buntansha) |
中静 透 東北大学, 生命科学研究科, 教授 (00281105)
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| Co-Investigator(Renkei-kenkyūsha) |
AIBA Masahiro 東北大学, 大学院生命科学研究科, 助教 (80751990)
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| Research Collaborator |
MAROD Dokrak カセサート大学, 林学部, 准教授
ASANOK Lamthai マジョー大学, 農業森林学部, 講師
KACHINA Panida 東北大学, 大学院生命科学研究科, 大学院生
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| Project Period (FY) |
2014-04-01 – 2017-03-31
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| Project Status |
Completed (Fiscal Year 2016)
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| Budget Amount *help |
¥17,550,000 (Direct Cost: ¥13,500,000、Indirect Cost: ¥4,050,000)
Fiscal Year 2016: ¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2015: ¥5,980,000 (Direct Cost: ¥4,600,000、Indirect Cost: ¥1,380,000)
Fiscal Year 2014: ¥6,500,000 (Direct Cost: ¥5,000,000、Indirect Cost: ¥1,500,000)
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| Keywords | 熱帯林 / 森林劣化 / 生態系機能 / 機能形質 / 撹乱応答 / 落葉分解 |
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| Outline of Final Research Achievements |
Leaf litter decomposition is one of the important processes in forest ecosystems, and thought to be affected by the changes in functional composition of tree community and microenvironments due to forest degradation. Among the four forest types along a drought gradient in Thailand, the differences in canopy openness and soil moisture between old-growth and young secondary forests did not affect the decomposition. As to the functional composition, community weighted mean of leaf mass area (LMA) and that of foliar nitrogen were generally lower and higher in young secondary than in old-growth forests, respectively. However, the variation in LMA and foliar nitrogen did not necessarily affect the decomposition. Rather, the variation in secondary metabolites, which was not changed by forest degradation, affected the decomposition in each forest type. This suggested that the forest degradation did not necessarily change the decomposition neither in dry nor moist tropical forests in Thailand.
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