| Project/Area Number |
20780115
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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 |
Forest science
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| Research Institution | Kyoto University |
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Principal Investigator |
WATANABE Tetsuhiro Kyoto University, 地球環境学堂, 助教 (60456902)
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| Project Period (FY) |
2008 – 2009
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| Project Status |
Completed (Fiscal Year 2009)
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| Budget Amount *help |
¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000)
Fiscal Year 2009: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2008: ¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
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| Keywords | 土壌鉱物 / 地質 / 生物地球化学 / 森林生態系 / 水資源 |
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| Research Abstract |
Vermiculite, which controls cation exchangeable reactions in soils, formed from thermodynamically unstable mica minerals under humid climatic conditions in Japan. The amount of vermiculite is large in the following order of parent materials; sedimentary rock (i.e. shall) > acidic rocks > basic rocks, volcanic ash. Active aluminum and iron contents were high in high altitude soils, besides extremely high amounts in volcanic soils. They contributed to organic matter accumulation, maintained soil pH with dissolving, and controlled sorption capacity and intensity of phosphate.
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