Quantifying the biodegradability of soil organic matter in Japanese forest surface soils
| Project/Area Number |
23380096
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Forest science
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| Research Institution | Japan Atomic Energy Agency |
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Principal Investigator |
KOARASHI Jun 独立行政法人日本原子力研究開発機構, 原子力科学研究部門 原子力基礎工学研究センター, 研究主幹 (30421697)
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| Co-Investigator(Kenkyū-buntansha) |
ANDOH Mariko (ATARASHI Mariko) 独立行政法人日本原子力研究開発機構, 原子力科学研究部門原子力基礎工学研究センター, 研究副主幹 (20354855)
ISHIZUKA Shigehiro 独立行政法人森林総合研究所, 立地環境研究領域, 室長 (30353577)
HIRADATE Syuntaro 独立行政法人農業環境技術研究所, 生物多様性研究領域, 上席研究員 (60354099)
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| Project Period (FY) |
2011-04-01 – 2015-03-31
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| Project Status |
Completed (Fiscal Year 2014)
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| Budget Amount *help |
¥16,510,000 (Direct Cost: ¥12,700,000、Indirect Cost: ¥3,810,000)
Fiscal Year 2014: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Fiscal Year 2013: ¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2012: ¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2011: ¥5,850,000 (Direct Cost: ¥4,500,000、Indirect Cost: ¥1,350,000)
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| Keywords | 土壌有機物分解 / 森林土壌 / 放射性炭素（14C） / 地球温暖化 / 有機物分画 / 土壌鉱物特性 / 有機物化学構造 / 有機物構造 / 温度依存性 / 放射性炭素(14C) / 化学分画 |
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| Outline of Final Research Achievements |
Understanding the biodegradability of soil organic matter (SOM) is a key to accurately predicting the response of soil C to global warming. In this study, we quantified the mineral-organic matter associations, the diversity of chemical structures and mean residence times of SOM, and the temperature sensitivity of SOM decomposition in Japanese forest surface soils by using SOM fractionation techniques, 14C analysis, 13C-NMR measurements, and soil incubation studies.
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Report
(5 results)
Research Products
(14 results)
