2012 Fiscal Year Final Research Report
Soil gas dynamics affected by moisture condition in tropical peatland area
| Project/Area Number |
23710001
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Multi-year Fund |
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| Research Field |
Environmental dynamic analysis
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| Research Institution | Hokkaido University |
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Principal Investigator |
HAMADA Yohei 北海道大学, 大学院・地球環境科学研究院, 特任助教 (50323267)
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| Project Period (FY) |
2011 – 2012
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| Keywords | 熱帯泥炭 / 湿地土壌 / 温室効果ガス / 溶存ガス濃度 / インドネシア |
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| Research Abstract |
Methods for measuring dissolved gas concentrations were developed and applied to evaluate the greenhouse gas (GHG) dynamics in tropical peatland soil in Indonesia and the effect of environmental factors including water level and fire. Emission of CO2 was highest in drained natural forest, while that of methane was highest in flooded burnt area. Low methane concentrations in flooded natural forest implied the importance of oxygen supply via plant roots. Methane flux from drained burnt area would be controlled by methane oxidation in shallow soil layer, suggesting the increase of methane emission after the recovery of water level.
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