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Soil moisture effect on the temperature sensitivity of soil respiration

Research Project

Project/Area Number 26450216
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Forest science
Research InstitutionForest Research and Management Organization

Principal Investigator

Sakata Tadashi  国立研究開発法人森林研究・整備機構, 森林総合研究所, 主任研究員 等 (50353701)

Project Period (FY) 2014-04-01 – 2018-03-31
Project Status Completed (Fiscal Year 2017)
Budget Amount *help
¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000)
Fiscal Year 2016: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2015: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2014: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Keywords土壌炭素動態 / 温室効果ガス / 温度依存性 / 乾燥影響 / 土壌呼吸 / Q10 / 降雨遮断 / 乾燥処理 / 根呼吸 / 微生物呼吸 / Q10値 / 土壌乾燥処理
Outline of Final Research Achievements

Q10 values of soil respiration were measured at a soil drying treatment by rainfall interruption in a Japanese cedar plantation forest in Kasumigaura city, Ibaraki prefecture. The Q10 value of soil respiration by field observation was significantly decreased by the drying treatment. On the other hand, the Q10 value of CO2 emission from root, litter and mineral soil by laboratory experiments were not significantly different by the drying treatment. The rate of CO2 emission from the litter at the drying treatment was very small and the Q10 value of the CO2 emission from the litter was larger than the root. Therefore, it was considered that the Q10 value of soil respiration decreased due to the decrease of the contribution ratio of litter emission to soil respiration decreased with desiccation, in other words, the increase of the contribution of root respiration with relatively low Q10 value.

Report

(5 results)
  • 2017 Annual Research Report   Final Research Report ( PDF )
  • 2016 Research-status Report
  • 2015 Research-status Report
  • 2014 Research-status Report
  • Research Products

    (8 results)

All 2018 2017 2016 2015

All Journal Article (3 results) (of which Peer Reviewed: 3 results) Presentation (5 results)

  • [Journal Article] 乾燥処理が根・リター・土壌からのCO2放出速度の温度依存性におよぼす影響2018

    • Author(s)
      阪田匡司、古澤仁美
    • Journal Title

      関東森林研究

      Volume: 69

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed
  • [Journal Article] 降雨および土壌水分変動が土壌呼吸の温度特性におよぼす影響2017

    • Author(s)
      阪田匡司、野口享太郎、平井敬三
    • Journal Title

      関東森林研究

      Volume: 68 Pages: 75-76

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed
  • [Journal Article] 土壌呼吸に対する根呼吸割合の簡易測定2016

    • Author(s)
      阪田匡司・平井敬三
    • Journal Title

      関東森林研究

      Volume: 67 Pages: 129-132

    • Related Report
      2015 Research-status Report
    • Peer Reviewed
  • [Presentation] 土壌の乾燥が土壌呼吸の温度依存性におよぼす影響2018

    • Author(s)
      阪田匡司、古澤仁美
    • Organizer
      日本森林学会
    • Related Report
      2017 Annual Research Report
  • [Presentation] スギ人工林における土壌乾燥処理にともなう土 壌呼吸変動2017

    • Author(s)
      阪田匡司・野口享太郎・平井敬三
    • Organizer
      日本森林学会
    • Place of Presentation
      鹿児島大学(鹿児島県鹿児島市)
    • Year and Date
      2017-03-28
    • Related Report
      2016 Research-status Report
  • [Presentation] 降雨遮断処理による土壌水分変動が土壌呼吸におよぼす影響-室内培養による根・リター・土壌からのCO2発生速度の温度依存測定-2017

    • Author(s)
      阪田匡司、古澤仁美
    • Organizer
      関東森林学会
    • Related Report
      2017 Annual Research Report
  • [Presentation] 降雨イベントおよび降雨遮断処理が土壌呼吸におよぼす影響2016

    • Author(s)
      阪田匡司・野口享太郎・平井敬三
    • Organizer
      関東森林学会
    • Place of Presentation
      千葉市市民会館(千葉県千葉市)
    • Year and Date
      2016-10-18
    • Related Report
      2016 Research-status Report
  • [Presentation] 土壌呼吸に対する根呼吸割合の簡易測定-培養法およびトレンチ法-2015

    • Author(s)
      阪田匡司・平井敬三
    • Organizer
      関東森林学会
    • Place of Presentation
      茨城県立県民文化センター
    • Year and Date
      2015-10-19
    • Related Report
      2015 Research-status Report

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Published: 2014-04-04   Modified: 2019-03-29  

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