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A general predictive model for estimating monthly ecosystem evapotranspiration

Sun, Ge, Alstad, Karrin, Chen, Jiquan, Chen, Shiping, Ford, Chelcy R., Lin, Guanghui, Liu, Chenfeng, Lu, Nan, McNulty, Steven G., Miao, Haixia, Noormets, Asko, Vose, James M., Wilske, Burkhard, Zeppel, Melanie, Zhang, Yan, Zhang, Zhiqiang·2011·Ecohydrology

Abstract

Accurately quantifying evapotranspiration (ET) is essential for modelling regional‐scale ecosystem water balances. This study assembled an ET data set estimated from eddy flux and sapflow measurements for 13 ecosystems across a large climatic and management gradient from the United States, China, and Australia. Our objectives were to determine the relationships among monthly measured actual ET (ET), calculated FAO‐56 grass reference ET (ET o), measured precipitation (P), and leaf area index (LAI)—one associated key parameter of ecosystem structure. Results showed that the growing season ET from wet forests was generally higher than ET o while those from grasslands or woodlands in the arid and semi‐arid regions were lower than ET o. Second, growing season ET was found to be converged to within ± 10% of P for most of the ecosystems examined. Therefore, our study suggested that soil water storage in the nongrowing season was important in influencing ET and water yield during the growing season. Lastly, monthly LAI, P, and ET o together explained about 85% of the variability of monthly ET. We concluded that the three variables LAI, P, and ET o, which were increasingly available from remote sensing products and weather station networks, could be used for estimating monthly regional ET dynamics with a reasonable accuracy. Such an empirical model has the potential to project the effects of climate and land management on water resources and carbon sequestration when integrated with ecosystem models. Copyright © 2010 John Wiley & Sons, Ltd.

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Metadata

Authors
Sun, G., Alstad, K., Chen, J., Chen, S., Ford, C. R., Lin, G., Liu, C., Lu, N., McNulty, S. G., Miao, H., Noormets, A., Vose, J. M., Wilske, B., Zeppel, M., Zhang, Y., & Zhang, Z.
Venue
Ecohydrology
Publisher
Wiley
Published
2010-12-29
Volume
4
Issue
2
Pages
245-255
ISSN
  • 1936-0584 (ISSN-L)
  • 1936-0592
OpenAlex
W2044393873
Cited by
271
References
35
FWCI
10.29
Type
journal article
Language
en
Open access
closed

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CoChat. (2026). Citation check: A general predictive model for estimating monthly ecosystem evapotranspiration. https://app.cochat.ai/papers/10.1002/eco.194
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Sun, G., Alstad, K., Chen, J., Chen, S., Ford, C. R., Lin, G., Liu, C., Lu, N., McNulty, S. G., Miao, H., Noormets, A., Vose, J. M., Wilske, B., Zeppel, M., Zhang, Y., & Zhang, Z. (2011). A general predictive model for estimating monthly ecosystem evapotranspiration. Ecohydrology. https://doi.org/10.1002/eco.194

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