Soil gas dynamics affected by moisture condition in tropical peatland area

• Project/Area Number: 23710001
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Environmental dynamic analysis
• Research Institution: Hokkaido University
• 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)
• Project Period (FY): 2011 – 2012
• Project Status: Completed (Fiscal Year 2012)
• Budget Amount: ¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000); Fiscal Year 2012: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000); Fiscal Year 2011: ¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
• 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 / 国際研究者交流 / 溶存酸素 / 地下水位

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.

Research Products

• [Presentation] Flux and dissolved concentration of major greenhouse gases ini tropical peatland under different land use in Central Kalimantan, Indonesia (2013)
  • Author(s): Adji F.F.・濱田洋平・Darung U.・Limin S.H.・Tito U.・Rogath T.・Ricard J.・Rumbih P.・波多野隆介
  • Organizer: 第11回東・東南アジア土壌科学連合（ESAFS11）
  • Place of Presentation: IPB国際コンベンションセンター（インドネシア）
• [Presentation] Relationships amongdissolved gases and environmentalfactors under different land use intropical peatland, Central Kalimantan,Indonesia (2012)
  • Author(s): F. F. Adji, 濱田洋平, U. Darung, S.H. Limin,波多野隆介
  • Organizer: 日本土壌肥料学会2012年度鳥取大会
  • Place of Presentation: 鳥取大学(鳥取市)
• [Presentation] Relationships among dissolved gases and environmental factors under different land use in tropical peatland, Central Kalimantan, Indonesia (2012)
  • Author(s): Adji F.F.・濱田洋平・Darung U.・Limin S.H.・波多野隆介
  • Organizer: 日本土壌肥料学会2012年度鳥取大会
  • Place of Presentation: 鳥取大学（鳥取市）
• [Presentation] Dissolved gasmeasurement under flooded wetlandsoils (2011)
  • Author(s): Hamada Y., F. F. Adji, R. Hatano, U. Darung, S.H. Limin
  • Organizer: 10thInternational Conference ofthe East and Southeast Asia Federationof Soil Science Societies
  • Place of Presentation: Cinnamon Lakeside Hotel (コロンボ,スリランカ)
• [Presentation] 湛水した湿地土壌中に存在する溶存ガス濃度の測定法の開発 (2011)
  • Author(s): 濱田洋平, F. F. Adji, 波多野隆介, U. Darung, S.H. Limin
  • Organizer: 水文・水資源学会2011年度総会・研究発表会
  • Place of Presentation: 京都大学(宇治市)
• [Presentation] 湿地土壌中における溶存酸素濃度の測定法 (2011)
  • Author(s): 濱田洋平, F. F. Adji, 波多野隆介, U. Darung, S.H. Limin
  • Organizer: 日本土壌肥料学会 201 1 年度つくば大会
  • Place of Presentation: つくば国際会議場(つくば市)
• [Presentation] 湿地土壌中における溶存酸素濃度の測定法 (2011)
  • Author(s): 濱田洋平, Adji, F.F., 波多野隆介, Darung, U., Limin, S.H.
  • Organizer: 日本土壌肥料学会2011年度つくば大会
  • Place of Presentation: つくば国際会議場（つくば市）
• [Presentation] 湛水した湿地土壌中に存在する溶存ガス濃度の測定法の開発 (2011)
  • Author(s): 濱田洋平, Adji, F.F., 波多野隆介, Darung, U., Limin, S.H.
  • Organizer: 水文・水資源学会2011年度総会・研究発表会
  • Place of Presentation: 京都大学宇治おうばくプラザ（宇治市）
• [Presentation] Dissolved gas measurement under flooded wetland soils (2011)
  • Author(s): Hamada, Y., Adji, F.F., Hatano, R. , Darung, U., Limin, S.H.
  • Organizer: 10th East and Southeast Asia Federation of Soil Science Societies (ESAFS)
  • Place of Presentation: Cinnamon Lakeside Hotel (Sri Lanka)