| Project/Area Number |
26660048
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Multi-year Fund |
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| Research Field |
Plant nutrition/Soil science
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| Research Institution | Kyoto University |
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Principal Investigator |
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| Project Period (FY) |
2014-04-01 – 2016-03-31
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| Project Status |
Completed (Fiscal Year 2015)
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| Budget Amount *help |
¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
Fiscal Year 2015: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Fiscal Year 2014: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
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| Keywords | 土壌生成 / 二次鉱物 / リン酸 / 土壌有機物 / 火山灰 / 土壌鉱物 |
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| Outline of Final Research Achievements |
In soils, phosphorus and carbon are most important elements in terms of agriculture and environments: highly mobile phosphorus is available for plants while it may flow into and pollute water system; stabilization organic carbon in soils is beneficial both for soil fertility and mitigation of climate change. Mobility of phosphorus and stability of organic carbon are controlled by surface properties of soils as well as composition of soil secondary minerals. In this study, I revealed 1) the effects of soil forming factors on soil secondary mineral composition in various soils, 2) retarding effect of soil micropores on phosphorus mobility, and 3) the effects of surface hydroxides and micropores of soil particles on organic carbon stabilization.
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