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Can tropical deforestation alter the local climate over Borneo?

Research Project

Project/Area Number 25281005
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypePartial Multi-year Fund
Section一般
Research Field Environmental dynamic analysis
Research InstitutionNagoya University

Principal Investigator

Kumagai Tomo'omi  名古屋大学, 宇宙地球環境研究所, 准教授 (50304770)

Co-Investigator(Kenkyū-buntansha) Fujinami Hatsuki  名古屋大学, 宇宙地球環境研究所, 講師 (60402559)
安成 哲三  総合地球環境学研究所, 研究部, 所長 (80115956)
Project Period (FY) 2013-04-01 – 2016-03-31
Project Status Completed (Fiscal Year 2015)
Budget Amount *help
¥18,460,000 (Direct Cost: ¥14,200,000、Indirect Cost: ¥4,260,000)
Fiscal Year 2015: ¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000)
Fiscal Year 2014: ¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000)
Fiscal Year 2013: ¥8,580,000 (Direct Cost: ¥6,600,000、Indirect Cost: ¥1,980,000)
Keywords森林 / 気候変動 / 土地利用変化 / 熱帯雨林 / 東南アジア
Outline of Final Research Achievements

This study investigates the influences of land cover change on the amount of precipitation over land in the Borneo Island, using numerical simulations with the Weather Research and Forecasting model. The simulation of forest degradation, in which stomatal conductance was reduced, resulted in increase in monthly accumulated precipitation (Pac) over land, even though monthly accumulated evapotranspiration (Eac) decreased. This was likely attributed to enhanced convergence of water vapor flux (Qf) in the inland area in nighttime. By contrast, two cases of the simulations of deforestation resulted in decrease in Pac over land. The amplitude of decrease in Pac was nearly proportional to the deforested area. This was likely attributed to weakened convergence of Qf in the coastal land area in late afternoon and in the inland area in nighttime. Drying of the atmosphere caused by the weakened convergence of Qf induced lifting of condensation level and weakened the atmospheric instability.

Report

(4 results)
  • 2015 Annual Research Report   Final Research Report ( PDF )
  • 2014 Annual Research Report
  • 2013 Annual Research Report
  • Research Products

    (11 results)

All 2016 2015 2014 2013

All Journal Article (10 results) (of which Int'l Joint Research: 4 results,  Peer Reviewed: 10 results,  Acknowledgement Compliant: 7 results) Book (1 results)

  • [Journal Article] Characteristics of wood CO2 efflux in a Bornean tropical rainforest2016

    • Author(s)
      Katayama, A., Kume, T., Ohashi, M., Matsumoto, K., Nakagawa, M., Saito, T., Kumagai, T. and Otsuki, K.
    • Journal Title

      Agricultural and Forest Meteorology

      Volume: 220 Pages: 190-199

    • Related Report
      2015 Annual Research Report
    • Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
  • [Journal Article] Separating physical and biological controls on long-term evapotranspiration fluctuations in a tropical deciduous forest subjected to monsoonal rainfall2015

    • Author(s)
      Igarashi, Y., Katul, G., Kumagai, T., Yoshifuji, N., Sato, T., Tanaka, N., Tanaka, K., Fujinami, H., Suzuki, M. and Tantasirin, C.
    • Journal Title

      Journal of Geophysical Research -Biogeosciences

      Volume: 120 Issue: 7 Pages: 1262-1278

    • DOI

      10.1002/2014jg002767

    • Related Report
      2015 Annual Research Report
    • Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
  • [Journal Article] Environmental control of canopy stomatal conductance in a tropical deciduous forest in northern Thailand2015

    • Author(s)
      Igarashi, Y., Kumagai, T., Yoshifuji, N., Sato, T., Tanaka, N., Tanaka, K., Suzuki, M. and Tantasirin, C.
    • Journal Title

      Agricultural and Forest Meteorology

      Volume: 202 Pages: 1-10

    • Related Report
      2015 Annual Research Report 2014 Annual Research Report
    • Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
  • [Journal Article] How do rubber (Hevea brasiliensis) plantations behave under seasonal water stress in northeastern Thailand and central Cambodia?2015

    • Author(s)
      Kumagai, T., Mudd, R. G., Giambelluca, T. W., Kobayashi, N., Miyazawa, Y., Lim, T. K., Liu, W., Huang, M., Fox, J. M., Ziegler, A. D., Yin, S., Mak, S. V. and Kasemsap, P.
    • Journal Title

      Agricultural and Forest Meteorology

      Volume: 213 Pages: 10-22

    • Related Report
      2015 Annual Research Report
    • Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
  • [Journal Article] Vertical variations in wood CO2 efflux for live emergent trees in a Bornean tropical rainforest2014

    • Author(s)
      Katayama, A., Kume, T., Komatsu, H., Ohashi, M., Matsumoto, K., Ichihashi, R., Kumagai, T. and Otsuki, K.
    • Journal Title

      Tree Physiology

      Volume: 34 Pages: 503-512

    • Related Report
      2014 Annual Research Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Implications of leaf-scale physiology for whole tree transpiration under seasonal flooding and drought in central Cambodia2014

    • Author(s)
      Miyazawa, Y., Tateishi, M., Komatsu, H., Iwanaga, F., Mizoue, N., Ma, V., Sokh, H. and Kumagai, T.
    • Journal Title

      Agricultural and Forest Meteorology

      Volume: 198-199 Pages: 221-231

    • Related Report
      2014 Annual Research Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Tropical tree water use under seasonal waterlogging and drought in central Cambodia2014

    • Author(s)
      Miyazawa, Y., Tateishi, M., Komatsu, H., Ma, V., Kajisa, T., Sokh, H., Mizoue, N. and Kumagai, T.
    • Journal Title

      Journal of Hydrology

      Volume: 515 Pages: 81-89

    • Related Report
      2014 Annual Research Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Radiative and precipitation controls on root zone soil moisture spectra.2014

    • Author(s)
      Nakai, T., Katul, G. G., Kotani, A., Igarashi, Y., Ohta, T., Suzuki, M. and Kumagai, T.
    • Journal Title

      Geophysical Research Letters

      Volume: 41(21) Issue: 21 Pages: 7546-7554

    • DOI

      10.1002/2014gl061745

    • Related Report
      2014 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Deforestation-induced reduction in rainfall2013

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

      Hydrological Processes

      Volume: 27 Pages: 3811-3814

    • Related Report
      2013 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Carbon allocation in a Bornean tropical rainforest without dry seasons2013

    • Author(s)
      Katayama, A., Kume, T., Komatsu, H., Saitoh, T., Ohashi, M., Nakagawa, M., Suzuki, M., Otsuki, K. and Kumagai, T.
    • Journal Title

      Journal of Plant Research

      Volume: 126 Pages: 505-515

    • Related Report
      2013 Annual Research Report
    • Peer Reviewed
  • [Book] Observation and modelling of net ecosystem carbon exchange over canopy. (In: Canopy Photosynthesis: From Basics to Applications. Advances in Photosynthesis and Respiration, Eds. Hikosaka, K., Anten, N. and Niinemets, U.)2016

    • Author(s)
      Kumagai, T.
    • Publisher
      Springer-Verlag
    • Related Report
      2015 Annual Research Report

URL: 

Published: 2013-05-21   Modified: 2019-07-29  

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