Canopy conductance for a Moso bamboo (Phyllostachys pubescens) forest in western Japan

Hikaru Komatsu, Yuka Onozawa, Tomonori Kume, Kenji Tsuruta, Yoshinori Shinohara, Kyoichi Otsuki

研究成果: Contribution to journalArticle査読

51 被引用数 (Scopus)

抄録

In western Japan, Moso bamboo (Phyllostachys pubescens) forests have been expanding by replacing surrounding forests (e.g., coniferous plantation forests), which raises concerns about possible changes in terrestrial water and carbon cycles. Canopy conductance (G c) is a critical parameter for determining canopy transpiration and photosynthesis. To clarify the characteristics of G c for Moso bamboo forests, we calculated G c during a growing season for a Moso bamboo forest on the basis of canopy transpiration measurements made using the sap-flux method, and then compared the G c value with values for coniferous plantation forests in western Japan. G c was primarily related to the vapor pressure deficit and secondarily to solar radiation, similar to the results obtained for other temperate forests. Under light-saturated conditions, G c for the bamboo forest was approximately twice that for the coniferous plantation forests despite the lower leaf area index for the bamboo forest. This implies higher canopy transpiration and photosynthesis for the bamboo forest, and therefore possible changes in terrestrial water and carbon cycles due to the replacement of coniferous plantation forests by bamboo forests.

本文言語英語
ページ(範囲)111-120
ページ数10
ジャーナルAgricultural and Forest Meteorology
156
DOI
出版ステータス出版済み - 4 15 2012

All Science Journal Classification (ASJC) codes

  • 林業
  • 地球変動および惑星変動
  • 農業および作物学
  • 大気科学

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