How recent climate change influences water use efficiency in East Asia
文献类型：SCI/SSCI论文
| 作者 | Zhang F. M. ; Ju W. M. ; Shen S. H. ; Wang S. Q. ; Yu G. R. ; Han S. J. |
| 发表日期 | 2014 |
| 关键词 | net primary productivity remote-sensing inputs carbon-dioxide terrestrial ecosystems leaf-area forest model vegetation exchange evapotranspiration |
| 英文摘要 | Water use efficiency (WUE), defined as the ratio of gross primary productivity to evapotranspiration, is an important indicator of the trade-off between water loss and carbon gain. We used a biophysical process-based model to examine the relative importance of climate-induced changes in meteorological factors and leaf area index (LAI) on the changes in WUE in East Asia. Validation showed that our simulation could capture the magnitudes and variations of WUE at 18 flux sites in Asia. Regional results indicated that the highest WUE occurred in boreal forests at high latitudes and the lowest WUE in desert areas of China. Changes in meteorological factors negatively affected WUE in the northwestern, northern, and eastern study regions. Changes in LAI had determinant impacts on changes in WUE in most areas except for those with sparse or low-density vegetation (e.g., western interior China, southeast island countries) where meteorological factors dominated. We conclude that, aside from the impact of meteorological factors on WUE, climate-induced changes in LAI may play a prominent role in regulating WUE changes. |
| 出处 | Theoretical and Applied Climatology |
| 卷 | 116 |
| 期 | 1-2 |
| 页 | 359-370 |
| 收录类别 | SCI |
| 语种 | 英语 |
| ISSN号 | 0177-798X |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/29415]  |
| 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 | Zhang F. M.,Ju W. M.,Shen S. H.,et al. How recent climate change influences water use efficiency in East Asia. 2014. |
入库方式： OAI收割
来源：地理科学与资源研究所
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