气候变化领域集成服务门户(CCPortal): Reconstruction of global gridded monthly sectoral water withdrawals for 1971-2010 and analysis of their spatiotemporal patterns

CCPortal

DOI	10.5194/hess-22-2117-2018
	Reconstruction of global gridded monthly sectoral water withdrawals for 1971-2010 and analysis of their spatiotemporal patterns
	Huang Z.; Hejazi M.; Li X.; Tang Q.; Vernon C.; Leng G.; Liu Y.; Döll P.; Eisner S.; Gerten D.; Hanasaki N.; Wada Y.
发表日期	2018
ISSN	1027-5606
起始页码	2117
结束页码	2133
卷号	22 期号:4
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).
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; algorithm; data set; downscaling; global perspective; hydrological change; reconstruction; spatiotemporal analysis; water use; China; Europe; India; United States
来源期刊	Hydrology and Earth System Sciences
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/160063
作者单位	Huang, Z., 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, University of Chinese Academy of Sciences, Beijing, China; Hejazi, M., 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; Li, X., Pacific Northwest National Laboratory, Richland, WA, United States; Tang, Q., Key Laboratory of Water Cycle and Related Land Surface Processes, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing, China, University of Chinese Academy of Sciences, Beijing, China; Vernon, C., Pacific Northwest National Laboratory, Richland, WA, United States; Leng, G., Joint Global Change Res...
推荐引用方式 GB/T 7714	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],2018,22(4).
APA	Huang Z..,Hejazi M..,Li X..,Tang Q..,Vernon C..,...&Wada Y..(2018).Reconstruction of global gridded monthly sectoral water withdrawals for 1971-2010 and analysis of their spatiotemporal patterns.Hydrology and Earth System Sciences,22(4).
MLA	Huang Z.,et al."Reconstruction of global gridded monthly sectoral water withdrawals for 1971-2010 and analysis of their spatiotemporal patterns".Hydrology and Earth System Sciences 22.4(2018).