2010 Fiscal Year Final Research Report
The mechanism of greenhouse gases emission or absorption in a rice paddy field with consideration of storage in soil
| Project/Area Number |
19780183
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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 |
Irrigation, drainage and rural engineering/Rural planning
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| Research Institution | National Agricultural Research Organization (2008-2010)
Meiji University (2007) |
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Principal Investigator |
YAZAKI Tomotsugu National Agricultural Research Organization, 寒地温暖化研究チーム, 農研機構特別研究員 (00449290)
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| Project Period (FY) |
2007 – 2010
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| Keywords | 土壌圏現象 / 農業工学 / 土壌学 |
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| Research Abstract |
We monitored methane (CH_4) emission and the storage of methane dissolved in surface and soil water, and accumulated in soil gas in a rice paddy field. Then, we assessed the dynamics of methane in paddy soils to reduce the methane emission from rice paddy fields. Large part of CH_4 generated in paddy soil goes out of the field through emission to the atmosphere and the subsurface drainage and a part of generated CH_4 is store in the water and soil as a dissolved matter and bubble. Therefore, it is considered that the management for decreasing the CH_4 production is effective to decrease CH4 emission from rice paddy fields.
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