Contrasting effects of climate and LULC change on blue water resources at varying temporal and spatial scales

doi:10.1016/j.scitotenv.2021.147488

	Contrasting effects of climate and LULC change on blue water resources at varying temporal and spatial scales
	Li, Xiaojie 1; Zhang, Yongqiang 1; Ma, Ning 1; Li, Congcong 1,2; Luan, Jinkai 1
刊名	SCIENCE OF THE TOTAL ENVIRONMENT
	2021-09-10
卷号	786 页码:15
关键词	Climate change Land use change Blue water Yellow River Basin Relative contribution rate Scale effect
ISSN号	0048-9697
DOI	10.1016/j.scitotenv.2021.147488
通讯作者	Zhang, Yongqiang(zhangyq@igsnrr.ac.cn)
英文摘要	Blue water (BW) resources are of vital importance for human beings and ecosystem health. Disentangling the contributions of varying climate and land use/land cover (LULC) changes on BW changes is thus crucial and urgent for intelligent water governance. To this end, this study takes the Yellow River Basin (YRB) as a case study of the region that has been undergoing serious water deficit issues, and quantifies the climate and LULC change impacts on BW (water yield and deep aquifer recharge) at varying spatial scales for two periods: 1980 & ndash;2000 and 2000 & ndash;2015. Four major results were obtained. First, climate and LULC changes resulted in opposite impacts on BW in the two periods. In 1980 & ndash;2000, BW driven by climate and LULC changes was decreased, but increased in 2000 & ndash;2015. Second, climate and LULC change contributions to BW changes were largely scale-dependent. For the whole YRB, the contribution of climate change to BW change were >92% in both periods. For most sub-basins, LULC change, however, played a major role in controlling BW changes, which were either positive or negative, yielding a minor contribution of LULC change to BW for the whole basin. Third, urbanization was important in controlling BW changes. Urbanization-driven LULC change contributed to >80% of BW changes in urban areas. In comparison, climate change contributed to >55% of the BW changes in vegetated areas (cropland, forest, and grassland). Fourth, the dominant land use types for BW changes altered for the past decades. Compared with the impact in the first period, the grassland contribution to BW changes decreased more than 30%, but the forest and urban land contributions both increased over 10% in the second period. Our study provides deep insights regarding climate and LULC change impacts on BW in the YRB, and has immediate implications for land use conversion planning. (c) 2021 Elsevier B.V. All rights reserved.
资助项目	Second Tibetan Plateau Scientific Expedition and Research Program[2019QZKK0208] ; National Natural Science Foundation of China[41971032] ; National Natural Science Foundation of China[52009127] ; China Postdoctoral Science Foundation[2020M670441] ; Science for a Better Development of Inner Mongolia Program of the Bureau of Science and Technology of the Inner Mongolia Province ; CAS Pioneer Talents Program ; CAS Special Research Assistant Funding Program
WOS关键词	LAND-USE CHANGE ; LOESS PLATEAU ; RIVER-BASIN ; YELLOW-RIVER ; TIBETAN PLATEAU ; CHANGE IMPACTS ; SOIL-MOISTURE ; RUNOFF ; VEGETATION ; VARIABILITY
WOS研究方向	Environmental Sciences & Ecology
语种	英语
出版者	ELSEVIER
WOS记录号	WOS:000660298100007
资助机构	Second Tibetan Plateau Scientific Expedition and Research Program ; National Natural Science Foundation of China ; China Postdoctoral Science Foundation ; Science for a Better Development of Inner Mongolia Program of the Bureau of Science and Technology of the Inner Mongolia Province ; CAS Pioneer Talents Program ; CAS Special Research Assistant Funding Program
内容类型	期刊论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/164098]
专题	中国科学院地理科学与资源研究所
通讯作者	Zhang, Yongqiang
作者单位	1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Water Cycle & Related Land Surface Proc, Beijing 100101, Peoples R China 2.Northwest A&F Univ, Coll Nat Resources & Environm, Yangling 712100, Shaanxi, Peoples R China
推荐引用方式 GB/T 7714	Li, Xiaojie,Zhang, Yongqiang,Ma, Ning,et al. Contrasting effects of climate and LULC change on blue water resources at varying temporal and spatial scales[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2021,786:15.
APA	Li, Xiaojie,Zhang, Yongqiang,Ma, Ning,Li, Congcong,&Luan, Jinkai.(2021).Contrasting effects of climate and LULC change on blue water resources at varying temporal and spatial scales.SCIENCE OF THE TOTAL ENVIRONMENT,786,15.
MLA	Li, Xiaojie,et al."Contrasting effects of climate and LULC change on blue water resources at varying temporal and spatial scales".SCIENCE OF THE TOTAL ENVIRONMENT 786(2021):15.