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Cabon balance over Southeast Asian tropical forests

Research Project

Project/Area Number 17H01477
Research Category

Grant-in-Aid for Scientific Research (A)

Allocation TypeSingle-year Grants
Section一般
Research Field Forest science
Research InstitutionThe University of Tokyo

Principal Investigator

Kumagai Tomo'omi  東京大学, 大学院農学生命科学研究科(農学部), 教授 (50304770)

Co-Investigator(Kenkyū-buntansha) 溝上 展也  九州大学, 農学研究院, 教授 (00274522)
中静 透  総合地球環境学研究所, 研究部, 特任教授 (00281105)
彦坂 幸毅  東北大学, 生命科学研究科, 教授 (10272006)
平野 高司  北海道大学, 農学研究院, 教授 (20208838)
佐藤 保  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 (20353708)
村岡 裕由  岐阜大学, 流域圏科学研究センター, 教授 (20397318)
檜山 哲哉  名古屋大学, 宇宙地球環境研究所, 教授 (30283451)
佐藤 永  国立研究開発法人海洋研究開発機構, 地球環境部門(北極環境変動総合研究センター), 研究員 (50392965)
市榮 智明  高知大学, 教育研究部自然科学系農学部門, 教授 (80403872)
小杉 緑子  京都大学, 農学研究科, 教授 (90293919)
Project Period (FY) 2017-04-01 – 2021-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥42,640,000 (Direct Cost: ¥32,800,000、Indirect Cost: ¥9,840,000)
Fiscal Year 2020: ¥8,190,000 (Direct Cost: ¥6,300,000、Indirect Cost: ¥1,890,000)
Fiscal Year 2019: ¥8,190,000 (Direct Cost: ¥6,300,000、Indirect Cost: ¥1,890,000)
Fiscal Year 2018: ¥11,180,000 (Direct Cost: ¥8,600,000、Indirect Cost: ¥2,580,000)
Fiscal Year 2017: ¥15,080,000 (Direct Cost: ¥11,600,000、Indirect Cost: ¥3,480,000)
Keywords炭素循環 / 温暖化 / 気候変動 / 熱帯林 / 二酸化炭素
Outline of Final Research Achievements

The original plan was to develop the forest inventory network with numerous plots over Southeast Asian tropical forests and conduct synthesized forest carbon balance analyses. However, we did not complete most of the plan because of the worldwide covid situation. Under such a situation, we (1) were successful in arranging some highland mixed forest plots in Vietnam, (2) clarified that the effects of illegal logging are critical in evaluating the total forest carbon balance in Myanmar, (3) suggested twice more total forest carbon stock than the previous estimation via revisiting the total Japanese forest inventory data, and (4) successfully developed an individual-based forest dynamics model, which can be applied for the global-scale simulation.

Academic Significance and Societal Importance of the Research Achievements

気候変動を引き起こす温暖化の最大要因は大気中CO2濃度の上昇である。現在気候のメカニズム把握と将来気候予測のためには、熱帯林における炭素貯留能力を知ることが極めて重要であることが分かってきた。その中でも、東南アジア熱帯林域は、世界で最も森林破壊が進み、重大なCO2放出源として認識されている。それにもかかわらず、東南アジア熱帯林炭素収支に関するデータは他の熱帯林域に比べ圧倒的に不足している。本研究が目指した、東南アジア熱帯林全域における信頼に足る森林炭素収支の推定は、学術的にも科学的事実の空白地帯を埋めることを意味し、また、社会的には、脱炭素社会の実現に多大に寄与するものである。

Report

(5 results)
  • 2021 Final Research Report ( PDF )
  • 2020 Annual Research Report
  • 2019 Annual Research Report
  • 2018 Annual Research Report
  • 2017 Annual Research Report
  • Research Products

    (14 results)

All 2021 2020 2019 2018 Other

All Int'l Joint Research (1 results) Journal Article (13 results) (of which Int'l Joint Research: 4 results,  Peer Reviewed: 13 results)

  • [Int'l Joint Research] Malaysian Palm Oil Board(マレーシア)

    • Related Report
      2019 Annual Research Report
  • [Journal Article] Model analysis of forest thinning impacts on the water resources during hydrological drought periods2021

    • Author(s)
      Momiyama, H., Kumagai, T. and Egusa, T.
    • Journal Title

      Forest Ecology and Management

      Volume: 499 Pages: 119593-119593

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Carbon stock in Japanese forests has been greatly underestimated2020

    • Author(s)
      Egusa, T., Kumagai, T. and Shiraishi, N.
    • Journal Title

      Scientific Reports

      Volume: 10 Pages: 7895-7895

    • NAID

      130007880397

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Inferring CO2 fertilization effect based on global monitoring land-atmosphere exchange with a theoretical model2020

    • Author(s)
      Ueyama, M., Ichii, K., Kobayashi, H., Kumagai, T., et al.
    • Journal Title

      Environmental Research Letters

      Volume: 15 Pages: 084009-084009

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Characteristics of root decomposition based on in-situ experiments in a tropical rainforest in Sarawak, Malaysia: Impacts of root diameter and soil biota2019

    • Author(s)
      Ohashi, M., Makita, N., Katayama, A., Kume, T., Matsumoto, K., Kumagai, T., Endo, I. and Kho, L. K.
    • Journal Title

      Plant and Soil

      Volume: 436 Pages: 439-448

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Contrasting patterns in the decrease of spatial variability with increasing catchment area between stream discharge and water chemistry2019

    • Author(s)
      Egusa, T., Kumagai, T., Oda, T., Gomi, T. and Ohte, N.
    • Journal Title

      Water Resources Research

      Volume: 55 Pages: 7419-7435

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Reproducing monthly evapotranspiration from a coniferous plantation watershed in Japan2019

    • Author(s)
      Momiyama, H., Kumagai, T. and Egusa, T.
    • Journal Title

      Journal of Forest Research

      Volume: 24 Pages: 197-200

    • NAID

      130007880893

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Characteristics of root decomposition based on in situ experiments in a tropical rainforest in Sarawak, Malaysia: impacts of root diameter and soil biota2019

    • Author(s)
      Ohashi Mizue、Makita Naoki、Katayama Ayumi、Kume Tomonori、Matsumoto Kazuho、Kumagai Tomo’omi、Endo Izuki、Kho Lip Khoon
    • Journal Title

      Plant and Soil

      Volume: 436 Issue: 1-2 Pages: 439-448

    • DOI

      10.1007/s11104-018-03929-3

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Effects of long- and short-term atmospheric water cycles on the water balance over the Maritime Continent2018

    • Author(s)
      Kanamori, H., Kumagai, T., Fujinami, H., Hiyama, T. and Yasunari, T.
    • Journal Title

      Journal of Hydrometeorology

      Volume: 19 Pages: 1413-1427

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Interpretation of ENSO-related precipitation anomalies in northwestern Borneo using isotopic tracers2018

    • Author(s)
      Kurita, N., Horikawa, M., Kanamori, H., Fujinami, H., Kumagai, T., Kume, T. and Yasunari, T.
    • Journal Title

      Hydrological Processes

      Volume: 32 Pages: 2176-2186

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Drivers and mechanisms of tree mortality in moist tropical forests2018

    • Author(s)
      McDowell, N., Allen, C., ..., Kumagai, T., et al.
    • Journal Title

      New Phytologist

      Volume: 219 Pages: 851-869

    • Related Report
      2018 Annual Research Report 2017 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Gas exchange by the mesic-origin, arid land plantation species Robinia pseudoacacia under annual summer reduction in plant hydraulic conductance2018

    • Author(s)
      Miyazawa, Y., Du, S., Taniguchi, T., Yamanaka, N. and Kumagai, T.
    • Journal Title

      Tree Physiology

      Volume: 38 Pages: 1166-1179

    • Related Report
      2018 Annual Research Report 2017 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Effects of Long- and Short-Term Atmospheric Water Cycles on the Water Balance over the Maritime Continent2018

    • Author(s)
      Kanamori Hironari、Kumagai Tomo’omi、Fujinami Hatsuki、Hiyama Tetsuya、Yasunari Tetsuzo
    • Journal Title

      Journal of Hydrometeorology

      Volume: 19 Issue: 9 Pages: 1413-1427

    • DOI

      10.1175/jhm-d-18-0052.1

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Interpretation of El Nino-Southern Oscillation-related precipitation anomalies in north-western Borneo using isotopic tracers2018

    • Author(s)
      Kurita Naoyuki、Horikawa Mayumi、Kanamori Hironari、Fujinami Hatsuki、Kumagai Tomo'omi、Kume Tomonori、Yasunari Tetsuzo
    • Journal Title

      Hydrological Processes

      Volume: 32 Issue: 14 Pages: 2176-2186

    • DOI

      10.1002/hyp.13164

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed

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Published: 2017-04-28   Modified: 2023-01-30  

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