| Project/Area Number |
21310015
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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 |
Environmental dynamic analysis
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| Research Institution | National Institute of Polar Research |
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Principal Investigator |
UCHIDA Masaki 国立極地研究所, 研究教育系, 助教 (70370096)
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| Co-Investigator(Kenkyū-buntansha) |
UCHIDA Masao 独立行政法人国立環境研究所, 化学環境研究領域, 主任研究員 (50344289)
近藤 美由紀 独立行政法人国立環境研究所, 化学環境研究領域, NIESポスドクフェロー (30467211)
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| Co-Investigator(Renkei-kenkyūsha) |
KONDO Miyuki 独立行政法人国立環境研究所, 化学環境研究領域, NIESポスドクフェロー (30467211)
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| Project Period (FY) |
2009 – 2011
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| Project Status |
Completed (Fiscal Year 2011)
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| Budget Amount *help |
¥18,980,000 (Direct Cost: ¥14,600,000、Indirect Cost: ¥4,380,000)
Fiscal Year 2011: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
Fiscal Year 2010: ¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2009: ¥12,610,000 (Direct Cost: ¥9,700,000、Indirect Cost: ¥2,910,000)
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| Keywords | 物質循環 / 環境変動 / 土壌圏現象 / 微生物 / 極域 |
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| Research Abstract |
To clarify possibility of fossil carbon decomposition in soil in Arctic tundra ecosystem, we collected soil gas CO_2 and determined its date in Spitsbergen Island, High Arctic Norway. Soil gas CO_2 collected from 30-40 cm depth from soil surface was dated on the age of 3, 000-7, 000 year BP. Our results suggested that CO_2 derived from fossil carbon contributes soil respiration and decomposition rate of the fossil carbon may be accelerated if soil temperature increase.
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