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2010 Fiscal Year Final Research Report

Carbon balance of a peatland ecosystem under the changing environment

Research Project

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Project/Area Number 20241002
Research Category

Grant-in-Aid for Scientific Research (A)

Allocation TypeSingle-year Grants
Section一般
Research Field Environmental dynamic analysis
Research InstitutionHokkaido University

Principal Investigator

HIRANO Takashi  北海道大学, 大学院・農学研究院, 教授 (20208838)

Co-Investigator(Kenkyū-buntansha) HATANO Ryusuke  北海道大学, 大学院・農学研究院, 教授 (40156344)
INOUE Takashi  北海道大学, 大学院・農学研究院, 准教授 (30203235)
FUJITA Hiroko  北海道大学, 北方生物圏・フィールド科学センター, 准教授 (50202289)
YAMADA Hiroyuki  北海道大学, 大学院・農学研究院, 助教 (10374620)
TAKADA Masayuki  北海道立総合研究機構, 環境科学研究センター, 主任研究員 (40442610)
Project Period (FY) 2008 – 2010
Keywords物質循環
Research Abstract

We compared evapotranspiration and carbon balance between areas dominated by sphagnum species and vascular plats,"sasa" using flux monitoring data. Evapotranspiration during the snow-free season was higher at the sphagnum area than the sasa area, which does not support a hypothesis that the invasion of sasa plants with root systems dries the Sarobetsu Mire. The carbon balance during the snow-free season shows that both the ecosystems functioned as net CO_2 sinks to the atmosphere. In 2010, which had a very hot summer, net CO_2 uptake increased in the sphagnum area, whereas it decreased in the sasa area mainly because of increased ecosystem respiration due to high temperature.

  • Research Products

    (8 results)

All 2011 2010 2009 2008 Other

All Journal Article (4 results) (of which Peer Reviewed: 4 results) Presentation (4 results)

  • [Journal Article] 泥炭の水理特性を反映した地下水流動モデル2011

    • Author(s)
      岡田操, 井上京
    • Journal Title

      湿地研究

      Volume: 1 Pages: 3-16

    • Peer Reviewed
  • [Journal Article] Estimation of surface soil properties in peatland using ALOS/PALSAR2009

    • Author(s)
      Takada M, Mishima T and Natsume S
    • Journal Title

      Landscape and Ecological Engineering

      Volume: 5 Pages: 45-58

    • Peer Reviewed
  • [Journal Article] ALOS/PALSARを用いた泥炭地湿原の表層土壌特性の推定2008

    • Author(s)
      高田雅之, 井上京, 谷宏
    • Journal Title

      農業農村工学会論文集

      Volume: 76 Pages: 535-541

    • Peer Reviewed
  • [Journal Article] Geographical assessment of factors for Sasa expansion in the SarobetsuMire, Japan.

    • Author(s)
      Takada M, Inoue T, Mishima Y, Fujita H, Hirano T and Fujimura Y
    • Journal Title

      Journal of Landscape Ecology

      Volume: (in press)

    • Peer Reviewed
  • [Presentation] Evapotranspiration of peatlands with different vegetation types2011

    • Author(s)
      Hirano T
    • Organizer
      Yangling International Agri-Science Forum 2011
    • Place of Presentation
      西北農林科技大学(楊凌・中国)
    • Year and Date
      2011-11-05
  • [Presentation] サロベツ湿原の炭素収支と蒸発散2010

    • Author(s)
      平野高司
    • Organizer
      日本生態学会第58回大会
    • Place of Presentation
      札幌
    • Year and Date
      2010-03-11
  • [Presentation] 泥炭地湿原における水文変動による蒸発散量の推定2009

    • Author(s)
      高田雅之
    • Organizer
      水文・水資源学会2009年度研究集会
    • Place of Presentation
      金沢
    • Year and Date
      2009-08-20
  • [Presentation] サロベツ湿原における土壌水文因子の空間分布解析2008

    • Author(s)
      高田雅之
    • Organizer
      農業農村工学会全国大会
    • Place of Presentation
      秋田
    • Year and Date
      2008-08-27

URL: 

Published: 2013-07-31  

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