Widespread Increasing Control of Water Supply on Evapotranspiration
文献类型：期刊论文
| 作者 | Zhang, Yu1,4; Liu, Xiaomang1; Wang, Kaiwen1; Zhang, Dan3; Liu, Weihang2 |
| 刊名 | WATER RESOURCES RESEARCH
 |
| 出版日期 | 2024-12-01 |
| 卷号 | 60期号:12页码:e2024WR038353 |
| 关键词 | evapotranspiration soil moisture vapor pressure deficit decoupling water supply and demand |
| DOI | 10.1029/2024WR038353 |
| 产权排序 | 1 |
| 文献子类 | Article |
| 英文摘要 | Evapotranspiration (ET), a crucial component of water consumption in the hydrological process, is directly controlled by soil moisture (SM) and vapor pressure deficit (VPD) from the perspectives of water supply and demand. However, SM and VPD are strongly coupled through multiple physical processes, confounding their effects on ET. Here, we decouple the interaction between SM and VPD and then analyze the spatiotemporal pattern of their individual effects on ET based on multiple observation-based data sets. The results show that ET is limited by SM rather than VPD in approximately 63% of global land areas (60 degrees S-60 degrees N), defined as water supply-limited regions. From 1982 to 2014, the effect of SM on ET enhances significantly in 43% of the water supply-limited regions. The trends can be attributed to changes in SM and VPD themselves as well as to changes in vegetation conditions. Using the findings from the observation-based data sets as the benchmark, we show that Earth System Models (ESMs) can overall reproduce the spatial pattern of SM and VPD effects on ET but fail to capture their temporal trends. Our results highlight that the water supply and demand control on ET varies with changing environments, which should be explicitly considered when analyzing the terrestrial water cycle and land-atmosphere interaction. |
| WOS关键词 | CLIMATE ; TRANSPIRATION ; EVAPORATION ; VEGETATION ; DRIVERS ; DEMAND ; TRENDS |
| WOS研究方向 | Environmental Sciences & Ecology ; Marine & Freshwater Biology ; Water Resources |
| WOS记录号 | WOS:001370037700001 |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/210496]  |
| 专题 | 陆地水循环及地表过程院重点实验室_外文论文 |
| 通讯作者 | Liu, Xiaomang |
| 作者单位 | 1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Water Cycle & Related Land Surface Proc, Beijing, Peoples R China 2.Beijing Normal Univ, Fac Geog Sci, Beijing, Peoples R China 3.Chinese Acad Sci, Nanjing Inst Geog & Limnol, Key Lab Watershed Geog Sci, Nanjing, Peoples R China 4.Univ Chinese Acad Sci, Beijing, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, Yu,Liu, Xiaomang,Wang, Kaiwen,et al. Widespread Increasing Control of Water Supply on Evapotranspiration[J]. WATER RESOURCES RESEARCH,2024,60(12):e2024WR038353. |
| APA | Zhang, Yu,Liu, Xiaomang,Wang, Kaiwen,Zhang, Dan,&Liu, Weihang.(2024).Widespread Increasing Control of Water Supply on Evapotranspiration.WATER RESOURCES RESEARCH,60(12),e2024WR038353. |
| MLA | Zhang, Yu,et al."Widespread Increasing Control of Water Supply on Evapotranspiration".WATER RESOURCES RESEARCH 60.12(2024):e2024WR038353. |
入库方式： OAI收割
来源：地理科学与资源研究所
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