气候变化领域集成服务门户(CCPortal): Global trends in water and sediment fluxes of the world's large rivers

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DOI	10.1016/j.scib.2019.09.012
	Global trends in water and sediment fluxes of the world's large rivers
	Li L.; Ni J.; Chang F.; Yue Y.; Frolova N.; Magritsky D.; Borthwick A.G.L.; Ciais P.; Wang Y.; Zheng C.; Walling D.E.
发表日期	2020
ISSN	20959273
起始页码	62
结束页码	69
卷号	65 期号:1
英文摘要	Water and sediment transport from rivers to oceans is of primary importance in global geochemical cycle. Against the background of global change, this study examines the changes in water and sediment fluxes and their drivers for 4307 large rivers worldwide (basin area ≥1000 km2) based on the longest available records. Here we find that 24% of the world's large rivers experienced significant changes in water flux and 40% in sediment flux, most notably declining trends in water and sediment fluxes in Asia's large rivers and an increasing trend in suspended sediment concentrations in the Amazon River. In particular, nine binary patterns of changes in water-sediment fluxes are interpreted in terms of climate change and human impacts. The change of precipitation is found significantly correlated to the change of water flux in 71% of the world's large rivers, while dam operation and irrigation rather control the change of sediment flux in intensively managed catchments. Globally, the annual water flux from rivers to sea of the recent years remained stable compared with the long-time average annual value, while the sediment flux has decreased by 20.8%. © 2019 Science China Press
关键词	Cause Co-varying pattern Global trend Large river Water and sediment
英文关键词	Catchments; Climate change; Rivers; Sediment transport; Binary patterns; Cause; Global change; Global geochemical cycles; Global trends; Large rivers; Suspended sediment concentrations; Water sediments; Suspended sediments
语种	英语
来源期刊	Science Bulletin
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/207099
作者单位	Key Laboratory of Water and Sediment Sciences, Ministry of Education, College of Environmental Sciences and Engineering, Peking University, Beijing, 100871, China; State Key Laboratory of Water Resources and Hydropower Engineering Science, School of Water Resources and Hydropower Engineering, Wuhan University, Wuhan, 430072, China; Department of Hydrology, Faculty of Geography, Moscow State University, Moscow, 119991, Russian Federation; Institute of Infrastructure and Environment, School of Engineering, The University of Edinburgh, The King's Buildings, Edinburgh, EH9 3JL, United Kingdom; Laboratoire des Sciences du Climat et de l'Environnement, IPSL, CEA, CNRS, UVSQ, Gif-sur-Yvette, 91191, France; Beijing Innovation Center-Engineering Science & Advanced Technology, Peking University, Beijing, 100871, China; School of Environmental Science and Engineering, Southern University of Science and Technology, Shenzhen, 518055, China; Department of Geography, College of Life and Environmental Sciences, Universit...
推荐引用方式 GB/T 7714	Li L.,Ni J.,Chang F.,et al. Global trends in water and sediment fluxes of the world's large rivers[J],2020,65(1).
APA	Li L..,Ni J..,Chang F..,Yue Y..,Frolova N..,...&Walling D.E..(2020).Global trends in water and sediment fluxes of the world's large rivers.Science Bulletin,65(1).
MLA	Li L.,et al."Global trends in water and sediment fluxes of the world's large rivers".Science Bulletin 65.1(2020).