globalchange  > 气候变化事实与影响
DOI: 10.5194/hess-22-2117-2018
Scopus记录号: 2-s2.0-85045320771
论文题名:
Reconstruction of global gridded monthly sectoral water withdrawals for 1971-2010 and analysis of their spatiotemporal patterns
作者: Huang Z; , Hejazi M; , Li X; , Tang Q; , Vernon C; , Leng G; , Liu Y; , Döll P; , Eisner S; , Gerten D; , Hanasaki N; , Wada Y
刊名: Hydrology and Earth System Sciences
ISSN: 10275606
出版年: 2018
卷: 22, 期:4
起始页码: 2117
结束页码: 2133
语种: 英语
Scopus关键词: Electric power generation ; Irrigation ; Thermoelectric power plants ; Electricity generation ; High-latitude regions ; Human water withdrawal ; Irrigated cropland ; Spatial and temporal patterns ; Spatiotemporal patterns ; Statistical downscaling ; Thermal power plants ; Water supply
英文摘要: Human water withdrawal has increasingly altered the global water cycle in past decades, yet our understanding of its driving forces and patterns is limited. Reported historical estimates of sectoral water withdrawals are often sparse and incomplete, mainly restricted to water withdrawal estimates available at annual and country scales, due to a lack of observations at seasonal and local scales. In this study, through collecting and consolidating various sources of reported data and developing spatial and temporal statistical downscaling algorithms, we reconstruct a global monthly gridded (0.5°) sectoral water withdrawal dataset for the period 1971-2010, which distinguishes six water use sectors, i.e., irrigation, domestic, electricity generation (cooling of thermal power plants), livestock, mining, and manufacturing. Based on the reconstructed dataset, the spatial and temporal patterns of historical water withdrawal are analyzed. Results show that total global water withdrawal has increased significantly during 1971-2010, mainly driven by the increase in irrigation water withdrawal. Regions with high water withdrawal are those densely populated or with large irrigated cropland production, e.g., the United States (US), eastern China, India, and Europe. Seasonally, irrigation water withdrawal in summer for the major crops contributes a large percentage of total annual irrigation water withdrawal in mid- and high-latitude regions, and the dominant season of irrigation water withdrawal is also different across regions. Domestic water withdrawal is mostly characterized by a summer peak, while water withdrawal for electricity generation has a winter peak in high-latitude regions and a summer peak in low-latitude regions. Despite the overall increasing trend, irrigation in the western US and domestic water withdrawal in western Europe exhibit a decreasing trend. Our results highlight the distinct spatial pattern of human water use by sectors at the seasonal and annual timescales. The reconstructed gridded water withdrawal dataset is open access, and can be used for examining issues related to water withdrawals at fine spatial, temporal, and sectoral scales. © 2018 Author(s).
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/79340
Appears in Collections:气候变化事实与影响

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作者单位: Key Laboratory of Water Cycle and Related Land Surface Processes, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing, China; Joint Global Change Research Institute, Pacific Northwest National Laboratory, College Park, MD, United States; Earth System Science Interdisciplinary Center, University of Maryland, College Park, MD, United States; Pacific Northwest National Laboratory, Richland, WA, United States; University of Chinese Academy of Sciences, Beijing, China; Institute of Physical Geography, Goethe University Frankfurt, Frankfurt am Main, Germany; Senckenberg Biodiversity and Climate Research Centre (BiK-F), Frankfurt am Main, Germany; Center for Environmental Systems Research, University of Kassel, Kassel, Germany; Research Domain of Earth System Analysis, Potsdam Institute for Climate Impact Research (PIK), Potsdam, Germany; Geography Department, Humboldt-Universität zu Berlin, Berlin, Germany; Center for Global Environmental Research, National Institute for Environmental Studies, Tsukuba, Japan; International Institute for Applied Systems Analysis (IIASA), Schlossplatz 1, Laxenburg, Austria

Recommended Citation:
Huang Z,, Hejazi M,, Li X,et al. Reconstruction of global gridded monthly sectoral water withdrawals for 1971-2010 and analysis of their spatiotemporal patterns[J]. Hydrology and Earth System Sciences,2018-01-01,22(4)
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