Mineral controls on soil organic matter stabilization and degradation-response of soil carbon pool to warming
| Project/Area Number |
20710005
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Single-year Grants |
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| Research Field |
Environmental dynamic analysis
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| Research Institution | National Institute for Agro-Environmental Sciences |
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Principal Investigator |
WAGAI Rota National Institute for Agro-Environmental Sciences, 物質循環研究領域, 任期付研究員 (80456748)
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| Project Period (FY) |
2008 – 2010
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| Project Status |
Completed (Fiscal Year 2010)
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| Budget Amount *help |
¥3,510,000 (Direct Cost: ¥2,700,000、Indirect Cost: ¥810,000)
Fiscal Year 2010: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2009: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2008: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
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| Keywords | 土壌圏現象 / 自然現象観測予測 / 表面界面物性 / 土壌学 / 二酸化炭素排出削減 / 土壌炭素安定化 / 分解抑制 |
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| Research Abstract |
I examined some aspects of soil organic matter (SOM) stabilization and temperature sensitivity of SOM decomposition with a particular focus on mineral-organic matter interaction. First, using selective dissolution techniques, I quantified the amount of SOM associated with soil iron and aluminum phases among a wide range of filed soils for the first time. Second, I separated SOM by density and revealed that the molecular structure of the SOM in low-density fraction had strong control on the temperature sensitivity of SOM decomposition in accord with Arrhenius kinetic theory.
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Report
(4 results)
Research Products
(16 results)
