Satellite-Based Analysis of Evapotranspiration and Water Balance in the Grassland Ecosystems of Dryland East Asia (SCI)
文献类型：期刊论文
| 作者 | Xia J. Z. ; Liang S. L. ; Chen J. Q. ; Yuan W. P. ; Liu S. G. ; Li L. H. ; Cai W. W. ; Zhang L. ; Fu Y. ; Zhao T. B. ; Feng J. M. ; Ma Z. G. ; Ma M. G. ; Liu S. M. ; Zhou G. S. ; Asanuma J. ; Chen S. P. ; Du M. Y. ; Davaa G. ; Kato T. ; Liu Q. ; Liu S. H. ; Li S. G. ; Shao C. L. ; Tang Y. H. ; Zhao X. |
| 刊名 | Plos One
 |
| 出版日期 | 2014 |
| 卷号 | 9期号:5页码:11 |
| 英文摘要 | The regression tree method is used to upscale evapotranspiration (ET) measurements at eddy-covariance (EC) towers to the grassland ecosystems over the Dryland East Asia (DEA). The regression tree model was driven by satellite and meteorology datasets, and explained 82% and 76% of the variations of ET observations in the calibration and validation datasets, respectively. The annual ET estimates ranged from 222.6 to 269.1 mm yr(-1) over the DEA region with an average of 245.8 mm yr(-1) from 1982 through 2009. Ecosystem ET showed decreased trends over 61% of the DEA region during this period, especially in most regions of Mongolia and eastern Inner Mongolia due to decreased precipitation. The increased ET occurred primarily in the western and southern DEA region. Over the entire study area, water balance (the difference between precipitation and ecosystem ET) decreased substantially during the summer and growing season. Precipitation reduction was an important cause for the severe water deficits. The drying trend occurring in the grassland ecosystems of the DEA region can exert profound impacts on a variety of terrestrial ecosystem processes and functions. |
| 收录类别 | SCI |
| 公开日期 | 2015-12-24 |
| 源URL | [http://ir.casnw.net/handle/362004/25075]  |
| 专题 | 寒区旱区环境与工程研究所_中科院寒区旱区环境与工程研究所（未分类）_期刊论文 |
| 推荐引用方式 GB/T 7714 | Xia J. Z.,Liang S. L.,Chen J. Q.,et al. Satellite-Based Analysis of Evapotranspiration and Water Balance in the Grassland Ecosystems of Dryland East Asia (SCI)[J]. Plos One,2014,9(5):11. |
| APA | Xia J. Z..,Liang S. L..,Chen J. Q..,Yuan W. P..,Liu S. G..,...&Zhao X..(2014).Satellite-Based Analysis of Evapotranspiration and Water Balance in the Grassland Ecosystems of Dryland East Asia (SCI).Plos One,9(5),11. |
| MLA | Xia J. Z.,et al."Satellite-Based Analysis of Evapotranspiration and Water Balance in the Grassland Ecosystems of Dryland East Asia (SCI)".Plos One 9.5(2014):11. |
入库方式： OAI收割
来源：寒区旱区环境与工程研究所
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