Spatial variations in evapotranspiration over East Asian forest sites. II. Surface conductance and aerodynamic conductance
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- Khatun Rehana
- Graduate School of Bioagricultural Sciences, Nagoya University
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- Ohta Takeshi
- Graduate School of Bioagricultural Sciences, Nagoya University
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- Kotani Ayumi
- Graduate School of Bioagricultural Sciences, Nagoya University
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- Asanuma Jun
- Terrestrial Environment Research Center, Tsukuba University
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- Gamo Minoru
- National Institute of Advanced Industrial Science and Technology
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- Han Shijie
- Institute of Applied Ecology, Chinese Academy of Sciences
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- Hirano Takashi
- Graduate School of Agriculture, Hokkaido University
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- Nakai Yuichiro
- Forestry and Forest Products Research Institute
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- Saigusa Nobuko
- National Institute for Environmental Studies
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- Takagi Kentaro
- Field Science Center for Northern Biosphere, Hokkaido University
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- Wang Huimin
- Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences
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- Yoshifuji Natsuko
- Graduate School of Agriculture, Kyoto University
Description
Evapotranspiration over forest surfaces is mainly constrained by environmental and forest structural components through their influence on surface conductance (Gs) and aerodynamic conductance (Ga). Tower based eddy covariance data from 16 forest sites in East Asia (2°S to 64°N) were used to examine the sensitivity of Matsumoto and Nakai models for predicting Gs and Ga, respectively. Daytime dry-canopy data for the growing season were used in this study. Comparisons between model predictions and observed Gs and Ga showed good agreement, suggesting that the models were suitable for predicting Gs and Ga with reasonable accuracy. However, the model for Gs was unable to predict Gs accurately when soil water content was low (∼10%). In this circumstance, effective soil water content and a more comprehensive method for modelling the soil water content function must be used. Gs in East Asia was largely depended on vapour pressure deficit and secondarily on soil water content. Ga was largely affected by leaf area index compared with stand density.<br>
Journal
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- Hydrological Research Letters
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Hydrological Research Letters 5 88-92, 2011
Japan Society of Hydrology and Water Resources (JSHWR) / Japanese Association of Groundwater Hydrology (JAGH) / Japanese Association of Hydrological Sciences (JAHS) / Japanese Society of Physical Hydrology (JSPH)
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Details 詳細情報について
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- CRID
- 1390001205288751104
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- NII Article ID
- 130002125900
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- DOI
- 10.3178/hrl.5.88
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- ISSN
- 18823416
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- Text Lang
- en
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- Article Type
- journal article
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- Data Source
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- JaLC
- Crossref
- CiNii Articles
- KAKEN
- OpenAIRE
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- Abstract License Flag
- Disallowed
