| Project/Area Number |
20255010
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| Research Category |
Grant-in-Aid for Scientific Research (A)
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| Allocation Type | Single-year Grants |
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| Section | 海外学術 |
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| Research Field |
Forest science
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| Research Institution | Kyoto University |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
TANI Makoto 京都大学, 農学研究科, 教授 (00314245)
TAKANASHI Satoru 森林総合研究所, 気象環境研究領域, 研究員 (90423011)
NOGUCHI Shoji 森林総合研究所, 東北支所, チーム長 (90343780)
NAKAJI Tatsuro 北海道大学, 北方生物圏フィールド科学センター, 助教 (40391130)
TANAKA Katsunori 海洋研究開発機構, 地球環境変動領域, 主任研究員 (80344274)
YAMASHITA Tamon 島根大学, 生物資源科学部, 准教授 (30263510)
MATSUO Naoko 三重大学, 生物資源学研究科, 講師 (00423012)
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| Project Period (FY) |
2008 – 2011
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| Project Status |
Completed (Fiscal Year 2011)
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| Budget Amount *help |
¥45,370,000 (Direct Cost: ¥34,900,000、Indirect Cost: ¥10,470,000)
Fiscal Year 2011: ¥10,530,000 (Direct Cost: ¥8,100,000、Indirect Cost: ¥2,430,000)
Fiscal Year 2010: ¥11,180,000 (Direct Cost: ¥8,600,000、Indirect Cost: ¥2,580,000)
Fiscal Year 2009: ¥11,050,000 (Direct Cost: ¥8,500,000、Indirect Cost: ¥2,550,000)
Fiscal Year 2008: ¥12,610,000 (Direct Cost: ¥9,700,000、Indirect Cost: ¥2,910,000)
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| Keywords | CO_2フラックス / 蒸発散 / 個葉ガス交換 / CH_4フラックス / N_2Oフラックス / BVOCフラックス / 分光植生指標 / 炭素動態 / CO2フラックス / CH4フラックス / N2Oフラックス |
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| Research Abstract |
This research evaluated the function of a Southeast Asian tropical rainforest as the sunk/source of several greenhouse gases. We mainly focused on the flux observation of the gas exchange of CO_2, H_2O, CH_4, N_2O, and BVOC at the scale of leaf, plant, soil, and also at the scale of whole canopy. We also tested the two kinds of expectative gas exchange indexes, i. e., the vegetation indexes using spectroradiometric observations, and indexes using stable isotopes. In this forest, variability in rainfall pattern resulted in seasonal and inter-annual variability in micrometeorology ; evapotranspiration, photosynthesis, and ecosystem respiration responded to these changes, and compensated for each other and/or other components of micrometeorology, resulting in rather stable annual evapotranspiration and NEE, even during a considerably dry year.
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