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2016 Fiscal Year Final Research Report

Drought tolerance and the maintenance mechanisms of species richness of woody plants in the Ogasawara islands

Research Project

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Project/Area Number 24370009
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypePartial Multi-year Fund
Section一般
Research Field Ecology/Environment
Research InstitutionKyoto University

Principal Investigator

Ishida Atsushi  京都大学, 生態学研究センター, 教授 (60343787)

Co-Investigator(Kenkyū-buntansha) 矢崎 健一  国立研究開発法人森林総合研究所, 植物生態研究領域, 主任研究員 (30353890)
安田 泰輔  山梨県富士山科学研究所, 自然環境研究部, 研究員 (40372106)
中野 隆志  山梨県富士山科学研究所, 環境教育・交流部, 主幹研究員・部長 (90342964)
Co-Investigator(Renkei-kenkyūsha) YOSHIMURA Kenichi  京都大学, 農学研究科, 研究員 (20640717)
Research Collaborator SAIKI Shin-Taro  京都大学, 生態学研究センター
OKUNO Masaya  京都大学, 生態学研究センター
SAKATA Tsuyoshi  北里大学, 一般教養部, 講師
AIKAWA Shin-ichi  首都大学東京, 理工学研究科, 客員研究員
KACHI Naoki  首都大学東京, 理工学研究科, 教授
SANO Yuzo  北海道大学, (連合)農学研究科(研究院), 教授
Project Period (FY) 2012-04-01 – 2017-03-31
Keywords小笠原 / 乾性低木林 / 木部キャビテーション / 糖 / 樹木の乾燥枯死 / 乾燥適応 / 枝寿命 / 葉寿命
Outline of Final Research Achievements

The Ogasawara islands are one of World Natural Heritage sites in Japan. In vegetation at the dry ridge, dry evergreen forests with low canopy heights develop and approximately 70% of the woody plants is endemic species. They are received severe drought especially in July. We has examined their various physiological mechanisms against drought and the physiological mechanisms of drought-induced tree die-offs. In especially, we clarified the linkage of water-use and carbon-use strategies, based on the data, 1) the species specific variations of xylem cavitation resistance, 2) how to use of storage carbon in xylem under dessication and irrigation, and 3) how to pay the carbon cost to leaves and twigs. These data can assist for prediction of forest change and for development of adaptive measures under climate change globally.

Free Research Field

樹木生理生態学

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Published: 2018-03-22  

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