TY - JOUR
T1 - Canopy conductance for a Moso bamboo (Phyllostachys pubescens) forest in western Japan
AU - Komatsu, Hikaru
AU - Onozawa, Yuka
AU - Kume, Tomonori
AU - Tsuruta, Kenji
AU - Shinohara, Yoshinori
AU - Otsuki, Kyoichi
N1 - Funding Information:
We express sincere thanks to Dr. Tomo’omi Kumagai (Nagoya University, Japan) and Ms. Ayumi Katayama (Kyushu University, Japan) for discussions. We acknowledge Professor John H. Gash (Centre for Ecology and Hydrology, United Kingdom) and two anonymous reviewers for providing critical comments. This work is funded by a Grant-in-Aid for Scientific Research from the Japanese Ministry of Education, Culture, Sports, Science and Technology ( #21380098 ), by a CREST project (Field and modeling studies on the effect of forest devastation on flooding and environmental issues), and by the JSPS Institutional Program for Young Researcher Overseas Visits.
PY - 2012/4/15
Y1 - 2012/4/15
N2 - 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.
AB - 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.
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U2 - 10.1016/j.agrformet.2012.01.004
DO - 10.1016/j.agrformet.2012.01.004
M3 - Article
AN - SCOPUS:84856404133
SN - 0168-1923
VL - 156
SP - 111
EP - 120
JO - Agricultural and Forest Meteorology
JF - Agricultural and Forest Meteorology
ER -
