Applicability of sap flux measurements in moso bamboo (phyłł ostachys pubescens): Relationship between water absorption and wholetree water use utilizing granler sensor sap flux measurements

Yuka Onozawa, Tomonorl Koine, Hikaru Komatsu, Kenji Tsuruta, Kyoichi Otsuki

研究成果: ジャーナルへの寄稿記事

8 引用 (Scopus)

抄録

Although sap flux measurement is one of the most robust techniques for stand-scale transpiration estimates, its applicability to bamboo is unclear. Ultimately we aim to establish a method for sap flux-based stand-scale transpiration estimates in a bamboo forest This study focused on establishing a method for individual-scale transpiration estimates. We conducted sap flux measurements using hand-made 1-cm length sensors, and water absorption measurements in cut-bamboo. The sensors could detect water uptake in individual plants (i.e., sap flux in moso bamboo). The diurnal changes in sap flux density reasonably well corresponded to those in water absorption. We found there was an underestimation of whole-tree water use with the 1-cm Grainer sensor; thus we suggested a modified equation for the calculation of sap flux density. In this study we could estimate individual-scale transpiration in moso bamboo using sap flux measurements.

元の言語英語
ページ(範囲)366-370
ページ数5
ジャーナルNihon Ringakkai Shi/Journal of the Japanese Forestry Society
91
発行部数5
出版物ステータス出版済み - 12 1 2009

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Phyllostachys edulis
bamboo
flux measurement
sap
water uptake
water use
transpiration
sensor
bamboos
water
methodology

All Science Journal Classification (ASJC) codes

  • Forestry

これを引用

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abstract = "Although sap flux measurement is one of the most robust techniques for stand-scale transpiration estimates, its applicability to bamboo is unclear. Ultimately we aim to establish a method for sap flux-based stand-scale transpiration estimates in a bamboo forest This study focused on establishing a method for individual-scale transpiration estimates. We conducted sap flux measurements using hand-made 1-cm length sensors, and water absorption measurements in cut-bamboo. The sensors could detect water uptake in individual plants (i.e., sap flux in moso bamboo). The diurnal changes in sap flux density reasonably well corresponded to those in water absorption. We found there was an underestimation of whole-tree water use with the 1-cm Grainer sensor; thus we suggested a modified equation for the calculation of sap flux density. In this study we could estimate individual-scale transpiration in moso bamboo using sap flux measurements.",
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AU - Komatsu, Hikaru

AU - Tsuruta, Kenji

AU - Otsuki, Kyoichi

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