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Dynamics of sub-alpine forest ecosystems as affected by decrease in snowfall under climate change

Research Project

Project/Area Number 11680535
Research Category

Grant-in-Aid for Scientific Research (C)

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

Principal Investigator

MARUTA Emiko  Toho University, Faculty of Science, Associate Professor, 理学部, 助教授 (90229609)

Co-Investigator(Kenkyū-buntansha) KAJI Mikio  University of Tokyo, Graduate School of Frontier Sciences, Professor, 大学院・新領域創生科学研究科, 教授 (00152645)
OIKAWA Takehisa  University of Tsukuba, Institute of Biological Sciences, Professor, 生物科学系, 教授 (70011682)
KAMIMURA Yasumaro  Toho University, Faculty of Science, Professor, 理学部, 教授 (20120256)
SUETA Tatsuhiko  Ehime University, Faculty of Agriculture, Professor, 農学部, 教授 (90109314)
IKEDA Takefumi  Kyoto Prefectural University, Faculty of Agricultum, Associate Professor, 助教授 (50183158)
Project Period (FY) 1999 – 2002
Project Status Completed (Fiscal Year 2002)
Budget Amount *help
¥4,100,000 (Direct Cost: ¥4,100,000)
Fiscal Year 2002: ¥500,000 (Direct Cost: ¥500,000)
Fiscal Year 2001: ¥500,000 (Direct Cost: ¥500,000)
Fiscal Year 2000: ¥500,000 (Direct Cost: ¥500,000)
Fiscal Year 1999: ¥2,600,000 (Direct Cost: ¥2,600,000)
KeywordsClimate Change / Tree line / Sub-alpine coniferous forest / water stress / now effect / embolism / Photoinhibition / Abies mariesii / キャビラーション / 亜高山帯 / 水ストレス / キャビテーション / 気孔コンダクタンス / キャビチーション / 水ポテンシャル / 亜高山帯針葉樹 / 環境ストレス
Research Abstract

Abies mariesii is a dominant sub-alpine tree in the central Japan. Leader stems of tree-line A. mariesii at Mt. Norikura degenerate due to environmental stresses above the snow surface during winters, whereas shoots within snowpack were not affected by any stresses. High photon flux density in the early spring might have injured photochemical systems of A. mariesii leaves above the snow surface at the tree-line. Shoots above the snowpack line suffered from winter desiccation and embolism during winter over the snow surface. In early summer, stomatal conductance remained low due to embolism. Embolism did not recover until new xylem formation. Winter desiccation should decrease dry matter production over the snowpack line and the main production might be made by the part below snowpack line. Thus, decrease in snowfall in accordance with climate change should have an unfavorable effects on tree-line A. mariesii

Report

(5 results)
  • 2002 Annual Research Report   Final Research Report Summary
  • 2001 Annual Research Report
  • 2000 Annual Research Report
  • 1999 Annual Research Report

Research Products

(1 results)

All Other

All Publications (1 results)

  • [Publications] 工藤岳 編 丸田分担執筆: "高山植物の自然史"北海道大学図書刊行会. 222 (2000)

    • Related Report
      2000 Annual Research Report

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Published: 1999-03-31   Modified: 2016-04-21  

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