Changes in soil CO_2 concentration and soil respiration during rainfall events: analysis focused on change of soil gas diffusion coefficient
Project/Area Number |
20780112
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Research Category |
Grant-in-Aid for Young Scientists (B)
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Allocation Type | Single-year Grants |
Research Field |
Forest science
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Research Institution | The University of Tokyo |
Principal Investigator |
HOTTA Noeifumi The University of Tokyo, 大学院・農学生命科学研究科, 助教 (00323478)
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Project Period (FY) |
2008 – 2009
|
Project Status |
Completed (Fiscal Year 2009)
|
Budget Amount *help |
¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2009: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2008: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
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Keywords | 土壌呼吸 / 土壌中二酸化炭素濃度 / 土壌中ガス拡散係数 / 降雨 / 季節性 / 土壌呼吸速度 |
Research Abstract |
Soil respiration and soil CO_2 concentration profile were measured during two rainfall events to investigate the effect of rainfall on soil respiration and soil CO_2 concentration. Those data were compared with gas diffusion coefficients in soil derived from observed soil temperature and moisture. As a result, soil CO_2 storage determined the patterns of soil CO_2 concentration and soil respiration during rainfall. The pattern was different among rainfall events due to different soil CO_2 regime which was induced by seasonality of rainfall and soil CO_2 production profile.
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Report
(3 results)
Research Products
(2 results)