| Project/Area Number |
23510008
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Environmental dynamic analysis
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| Research Institution | Ehime University |
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Principal Investigator |
HIDETO Ueno 愛媛大学, 農学部, 教授 (90301324)
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| Project Period (FY) |
2011 – 2013
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| Project Status |
Completed (Fiscal Year 2013)
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| Budget Amount *help |
¥5,590,000 (Direct Cost: ¥4,300,000、Indirect Cost: ¥1,290,000)
Fiscal Year 2013: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2012: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Fiscal Year 2011: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
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| Keywords | 土壌有機物 / 炭素蓄積 / 窒素動態 / 高濃度二酸化炭素 / 13C / 15N / 腐植物質 / FACE / 土壌 / 窒素施肥 / 国際情報交換 アメリカ / 国際情報交流 アメリカ / 二酸化炭素 / 窒素化合物 |
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| Research Abstract |
The effects of elevated CO2 and N fertilization on chemical properties and turnover rates of soil organic compound were investigated. Elevated CO2 increased concentration of organic compounds in the soil. Higher rate of N fertilization also increased organic N compounds. Elevated CO2 and higher N input may improve soil fertility by increase of easily-decomposable organic matter.
Carbon turnover rates of phenolic acids in the soil were affected with CO2 concentration markedly, but they were little affected with rate of N fertilization. As phenolic acids, phenol, Vanillin, 4-Hydroxybenzoic acid, Vanillic acid, Acetovanillone, Syringaldehyde, Syringic acid, Ferulic acid were detected. Ether-linked phenolic acids showed higher turnover rate than Ester-linked one.
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