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Satellites reveal hotspots of global river extent change

文献类型：期刊论文

作者Wu, Qianhan2,3,4; Ke, Linghong5,6; Wang, Jida7; Pavelsky, Tamlin M.8; Allen, George H.9; Sheng, Yongwei10; Duan, Xuejun2; Zhu, Yunqiang1; Wu, Jin3,4; Wang, Lei2
刊名NATURE COMMUNICATIONS
出版日期2023-03-22
卷号14期号:1页码:13
DOI10.1038/s41467-023-37061-3
通讯作者Song, Chunqiao(cqsong@niglas.ac.cn)
英文摘要Rivers are among the most diverse, dynamic, and productive ecosystems on Earth. River flow regimes are constantly changing, but characterizing and understanding such changes have been challenging from a long-term and global perspective. By analyzing water extent variations observed from four-decade Landsat imagery, we here provide a global attribution of the recent changes in river regime to morphological dynamics (e.g., channel shifting and anabranching), expansion induced by new dams, and hydrological signals of widening and narrowing. Morphological dynamics prevailed in similar to 20% of the global river area. Booming reservoir constructions, mostly skewed in Asia and South America, contributed to similar to 32% of the river widening. The remaining hydrological signals were characterized by contrasting hotspots, including prominent river widening in alpine and pan-Arctic regions and narrowing in the arid/semi-arid continental interiors, driven by varying trends in climate forcing, cryospheric response to warming, and human water management. Our findings suggest that the recent river extent dynamics diverge based on hydroclimate and socio-economic conditions, and besides reflecting ongoing morphodynamical processes, river extent changes show close connections with external forcings, including climate change and anthropogenic interference. Rivers are among the most diverse, dynamic, and productive ecosystems on Earth. Here, using Landsat imagery, the authors provide a global attribution of the recent changes in river regime to morphological dynamics, dam-induced widening, and hydrological signals.
WOS关键词CLIMATE-CHANGE ; YELLOW-RIVER ; BRAHMAPUTRA RIVER ; HUMAN DOMINATION ; WATER STORAGE ; SURFACE-WATER ; BASIN ; VULNERABILITY ; RESERVOIRS ; DISCHARGE
资助项目Ministry of Water Resources of China ; National Key R&D Program of China[2018YFD1100101] ; National Key R&D Program of China[2018YFD0900804] ; National Key R&D Program of China[2018YFA0605402] ; National Key R&D Program of China[2022YFF0711603] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDA23100102] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDA28020503] ; Science and Technology Planning Project of NIGLAS[2022NIGLAS-CJH04] ; Science and Technology Planning Project of NIGLAS[2022NIGLAS-TJ18] ; Second Tibetan Plateau Scientific Expedition and Research (STEP)[2019QZKK0202] ; National Natural Science Foundation of China[41901374] ; National Natural Science Foundation of China[41971403] ; National Natural Science Foundation of China[31922090]
WOS研究方向Science & Technology - Other Topics
语种英语
出版者NATURE PORTFOLIO
WOS记录号WOS:001001470100001
资助机构Ministry of Water Resources of China ; National Key R&D Program of China ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Science and Technology Planning Project of NIGLAS ; Second Tibetan Plateau Scientific Expedition and Research (STEP) ; National Natural Science Foundation of China
源URL[http://ir.igsnrr.ac.cn/handle/311030/195045]  
专题中国科学院地理科学与资源研究所
通讯作者Song, Chunqiao
作者单位1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, State Key Lab Resources & Environm Informat Syst, Beijing 100101, Peoples R China
2.Chinese Acad Sci, Nanjing Inst Geog & Limnol, Key Lab Watershed Geog Sci, Nanjing 210008, Peoples R China
3.Univ Hong Kong, Sch Biol Sci, Pokfulam Rd, Hong Kong, Peoples R China
4.Univ Hong Kong, Inst Climate & Carbon Neural, Pokfulam Rd, Hong Kong, Peoples R China
5.Hohai Univ, Coll Hydrol & Water Resources, Nanjing 210098, Peoples R China
6.Hohai Univ, State Key Lab Hydrol Water Resources & Hydraul En, Nanjing 210098, Peoples R China
7.Kansas State Univ, Dept Geog & Geospatial Sci, Manhattan, KS 66506 USA
8.Univ N Carolina, Dept Earth Marine & Environm Sci, Chapel Hill, NC USA
9.Virginia Polytech Inst & State Univ, Dept Geosci, Blacksburg, VA USA
10.Univ Calif Los Angeles, Dept Geog, Los Angeles, CA 90095 USA
推荐引用方式
GB/T 7714		 Wu, Qianhan,Ke, Linghong,Wang, Jida,et al. Satellites reveal hotspots of global river extent change[J]. NATURE COMMUNICATIONS,2023,14(1):13.
APA Wu, Qianhan.,Ke, Linghong.,Wang, Jida.,Pavelsky, Tamlin M..,Allen, George H..,...&Song, Chunqiao.(2023).Satellites reveal hotspots of global river extent change.NATURE COMMUNICATIONS,14(1),13.
MLA Wu, Qianhan,et al."Satellites reveal hotspots of global river extent change".NATURE COMMUNICATIONS 14.1(2023):13.

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来源：地理科学与资源研究所

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