Global Water Scarcity Assessment Incorporating Green Water in Crop Production
文献类型：期刊论文
| 作者 | Liu, Wenfeng1; Liu, Xingcai2,3; Yang, Hong2,4; Ciais, Philippe5; Wada, Yoshihide6 |
| 刊名 | WATER RESOURCES RESEARCH
 |
| 出版日期 | 2022 |
| 卷号 | 58期号:1页码:19 |
| 关键词 | water scarcity blue water green water water withdrawals crop production global assessment |
| ISSN号 | 0043-1397 |
| DOI | 10.1029/2020WR028570 |
| 通讯作者 | Liu, Wenfeng(wenfeng.liu@cau.edu.cn) |
| 英文摘要 | Over the past decades, water scarcity has become prevalent in many regions of the world. Previous water scarcity assessments largely considered "blue water" (surface and groundwater) and overlooked "green water" (soil moisture), despite its key role in supporting crop production. Moreover, the long-term evolution of water scarcity remains unclear. Here, we propose an agricultural water scarcity index (WSIAW) that explicitly combines green and blue water. The WSIAW measures the degree to which both green and blue water availabilities can satisfy the agricultural water requirement. The WSIAW can directly indicate water scarcity in both rainfed and irrigated areas, which cannot be captured by the blue water scarcity index alone. Using the WSIAW, we assessed the evolution of water scarcity across regions of the world during 1971-2010 at a spatial resolution of 0.5 arc degree. We found that 22% of the 228 river basins with a WSIAW of >1 presented a much broader geographical coverage compared with estimates of water scarcity based on blue water only (8% of total basins). The WSIAW also exhibited a clear trend of increasing severity over the study period, particularly in major agricultural regions. Expanding cropland and increasing/competing water withdrawals by other sectors were the main reasons for the intensification of water scarcity, which was pronounced in some Asian and African river basins. The proposed WSIAW can be applied to different regions with various scales and is important for addressing global water scarcity issues. |
| WOS关键词 | SHARED SOCIOECONOMIC PATHWAYS ; AVAILABILITY ; UNCERTAINTY ; SIMULATION ; INDICATORS ; IMPACTS |
| 资助项目 | National Natural Science Foundation of China[52109071] ; Chinese Universities Scientific Fund[2021RC016] ; Top Agricultural Universities Partnership Collaboration Awards 2021 ; Swiss National Science Foundation[200021_188686] ; French State Aid by the ANR under the Investissements d'avenir programme[ANR-16-CONV-0003] |
| WOS研究方向 | Environmental Sciences & Ecology ; Marine & Freshwater Biology ; Water Resources |
| 语种 | 英语 |
| WOS记录号 | WOS:000751310200023 |
| 出版者 | AMER GEOPHYSICAL UNION |
| 资助机构 | National Natural Science Foundation of China ; Chinese Universities Scientific Fund ; Top Agricultural Universities Partnership Collaboration Awards 2021 ; Swiss National Science Foundation ; French State Aid by the ANR under the Investissements d'avenir programme |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/170552]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Liu, Wenfeng |
| 作者单位 | 1.China Agr Univ, Coll Water Resources & Civil Engn, Ctr Agr Water Res China, Beijing, Peoples R China 2.Swiss Fed Inst Aquat Sci & Technol, Eawag, Dubendorf, Switzerland 3.Chinese Acad Sci, Key Lab Water Cycle & Related Land Surface Proc, Inst Geog Sci & Nat Resources Res, Beijing, Peoples R China 4.Univ Basel, Dept Environm Sci, MGU, Basel, Switzerland 5.Univ Paris Saclay, Lab Sci Climat & Environm, CEA CNRS UVSQ, LSCE IPSL, Gif Sur Yvette, France 6.Int Inst Appl Syst Anal, Laxenburg, Austria |
| 推荐引用方式 GB/T 7714 | Liu, Wenfeng,Liu, Xingcai,Yang, Hong,et al. Global Water Scarcity Assessment Incorporating Green Water in Crop Production[J]. WATER RESOURCES RESEARCH,2022,58(1):19. |
| APA | Liu, Wenfeng,Liu, Xingcai,Yang, Hong,Ciais, Philippe,&Wada, Yoshihide.(2022).Global Water Scarcity Assessment Incorporating Green Water in Crop Production.WATER RESOURCES RESEARCH,58(1),19. |
| MLA | Liu, Wenfeng,et al."Global Water Scarcity Assessment Incorporating Green Water in Crop Production".WATER RESOURCES RESEARCH 58.1(2022):19. |
入库方式： OAI收割
来源：地理科学与资源研究所
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