Modeling evapotranspiration by combing a two-source model, a leaf stomatal model, and a light-use efficiency model
文献类型：SCI/SSCI论文
| 作者 | Hu Z. M. ; Li S. G. ; Yu G. R. ; Sun X. M. ; Zhang L. M. ; Han S. J. ; Li Y. N. |
| 发表日期 | 2013 |
| 关键词 | Evapotranspiration Canopy stomatal conductance Shuttleworth-Wallace model Ball-Berry model Remote sensing SWH model gross primary production water-use efficiency remotely-sensed data shuttleworth-wallace ecosystem modis photosynthesis transpiration evaporation vegetation |
| 英文摘要 | Modeling and partitioning ecosystem evapotranspiration (ET) are important in predicting the responses of ecosystem water cycles to global climate change and land use. By incorporating the Ball-Berry stomatal conductance model and a light use efficiency-based gross primary productivity (GPP) model into the Shuttleworth-Wallace model, we developed a new model, SWH, for estimating ET with meteorological data and remote sensing products. Since the new model solved the problem of estimating canopy stomatal conductance, it can be used at sites equipped with meteorological observation systems around the world. Compared with eddy covariance measurements, the SWH model demonstrated satisfactory estimates of ET at a temperate forest and an alpine grassland. Eight meteorological variables and two remote sensing products (i.e., leaf area index, LAI, and enhanced vegetation index, EVI or normalized difference vegetation index, NDVI, or fraction of photosynthetically active radiation, FPAR) are required in our model. This will facilitate estimates of ET and its components, and further elucidate the mechanisms underlying their variations at regional scale. In addition, our model estimates ET and GPP simultaneously, making it convenient to address the coupling of these two key fluxes in terrestrial ecosystems. (C) 2013 Elsevier B.V. All rights reserved. |
| 出处 | Journal of Hydrology |
| 卷 | 501 |
| 页 | 186-192 |
| 收录类别 | SCI |
| 语种 | 英语 |
| ISSN号 | 0022-1694 |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/30510]  |
| 专题 | 地理科学与资源研究所_历年回溯文献 |
| 推荐引用方式 GB/T 7714 | Hu Z. M.,Li S. G.,Yu G. R.,et al. Modeling evapotranspiration by combing a two-source model, a leaf stomatal model, and a light-use efficiency model. 2013. |
入库方式： OAI收割
来源：地理科学与资源研究所
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