論文

査読有り
2010年9月

Stand-scale transpiration estimates in a Moso bamboo forest: (I) Applicability of sap flux measurements

FOREST ECOLOGY AND MANAGEMENT
  • Tomonori Kume
  • ,
  • Yuka Onozawa
  • ,
  • Hikaru Komatsu
  • ,
  • Kenji Tsuruta
  • ,
  • Yoshinori Shinohara
  • ,
  • Toshihiro Umebayashi
  • ,
  • Kyoichi Otsuki

260
8
開始ページ
1287
終了ページ
1294
記述言語
英語
掲載種別
研究論文(学術雑誌)
DOI
10.1016/j.foreco.2010.07.012
出版者・発行元
ELSEVIER SCIENCE BV

The applicability of sap flux (F(d)) measurements to bamboo forests has not been studied. This study was undertaken to establish an optimal and effective design for stand-scale transpiration (E) estimates in a Moso bamboo forest. To this aim, we validated F(d) measurements in Moso bamboos in a cut bamboo experiment. In addition, we analyzed how sample sizes affect the reliability of E estimates calculated from F(d) and conducting culm area (A(S_b)). In the cut bamboo experiments, we found that F(d) measurement using a 10 mm probe was a valid means of determining the water-use behavior of a Moso bamboo, although a specific correction was needed. Furthermore, we calculated E from stand A(S_b) (A(S)) and mean stand F(d) (Js). Employing Monte Carlo analysis, we examined potential errors associated with sample size in E, A(S_stand) and Js using an original dataset with A(S_b), and F(d) measured for 40 and 16 individuals, respectively. Consequently, we determined the optimal sample size for both A(S_stand) and Js estimates as 11. The optimal sample sizes fork were almost the same under different vapor pressure deficit and soil moisture conditions. The optimal sample size for Js at the study site was less than that of a coniferous plantation in the same region probably owing to small individual-to-individual variations in sap flux in the Moso bamboo forest. Our study concludes that sap flux measurements are an applicable technique for assessing water use in Moso bamboo forests. (C) 2010 Elsevier B.V. All rights reserved.

リンク情報
DOI
https://doi.org/10.1016/j.foreco.2010.07.012
Web of Science
https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000282863800005&DestApp=WOS_CPL
ID情報
  • DOI : 10.1016/j.foreco.2010.07.012
  • ISSN : 0378-1127
  • Web of Science ID : WOS:000282863800005

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