| Project/Area Number |
21580335
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Zootechnical science/Grassland science
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| Research Institution | Tamagawa University |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
YOSHIMURA Yoshitaka 玉川大学, 農学部, 教授 (90384718)
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| Co-Investigator(Renkei-kenkyūsha) |
NASAHARA Kenlo 筑波大学, 生命環境科学研究科, 准教授 (40312813)
YONEMURA Sei-ichiro 独立行政法人農業環境技術研究所, 大気環境研究領域, 主任研究員 (20354128)
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| Project Period (FY) |
2009 – 2012
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| Project Status |
Completed (Fiscal Year 2012)
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| Budget Amount *help |
¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
Fiscal Year 2012: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2011: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2010: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2009: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
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| Keywords | 環境 / 生態学 / 土壌 / 草原生態系 / 炭素固定能 / 生態系現象 / モニタリング / 炭素動態 / 生物圏現象 |
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| Research Abstract |
We investigated LAI, soil respiration rate (Rs), environmental factors, biomass and flora of soil microbes in the grassland. The canopy growth was distinguished into four periods, i.e. beginning of growth (late May), exponential growth (from June to July), maximum LAI（early to mid August）, and senescence (September to October). Annual rates were estimated as 3.1 - 3.8 kg CO_2 m^(-2)y^(-1)for Rs, and 2 - 2.5 kg CO_2 m^(-2)y^(-1)for soil heterotrophic respiration. Biomass and flora of soil microbes were heterogeneous spatially (among soil samples), but not seasonally (among sampling periods).
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