气候变化领域集成服务门户(CCPortal): Substantial Increases in the Water and Sediment Fluxes in the Headwater Region of the Tibetan Plateau in Response to Global Warming

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DOI	10.1029/2020GL087745
	Substantial Increases in the Water and Sediment Fluxes in the Headwater Region of the Tibetan Plateau in Response to Global Warming
	Li D.; Li Z.; Zhou Y.; Lu X.
发表日期	2020
ISSN	0094-8276
卷号	47 期号:11
英文摘要	The long-term effects of increased temperatures on sediment fluxes in cold regions remain poorly investigated. Here, we examined the multidecadal changes in runoff and sediment fluxes in the Tuotuohe River, a headwater river of the Yangtze River on the Tibetan Plateau (TP). The sediment fluxes and runoff increased at rates of 0.03 ± 0.01 Mt/yr (5.9 ± 1.9%/yr) and 0.025 ± 0.007 × km3/yr (3.5 ± 1.0%/yr) from 1985 to 2016, with net increases of 135% and 78% from 1985–1997 to 1998–2016, respectively. The increases are primarily due to warming temperature (+1.44°C) and intensified glacier-snow-permafrost melting, with enhanced precipitation (+30%) as a secondary cause. Sediment fluxes are much more susceptible to climate warming than runoff in this undisturbed cold environment. The substantially increased sediment fluxes from the headwater region could threaten the numerous constructed reservoirs and influence the aquatic ecosystems of the TP and its marginal areas. ©2020. American Geophysical Union. All Rights Reserved.
英文关键词	Aquatic ecosystems; Global warming; Reservoirs (water); Rivers; Runoff; Climate warming; Cold environment; Increased temperature; Long-term effects; Runoff and sediments; Sediment flux; Tibetan Plateau; Yangtze River; Sediments; decadal variation; fluvial deposit; headwater; high temperature; hydrological cycle; melting; permafrost; precipitation (climatology); runoff; sedimentation; warming; China; Qinghai-Xizang Plateau; Yangtze River
语种	英语
来源期刊	Geophysical Research Letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/170259
作者单位	Department of Geography, National University of Singapore, Singapore; State Key Laboratory of Water Resources and Hydropower Engineering Science, Wuhan University, Wuhan, China; Changjiang River Scientific Research Institute, Wuhan, China; Inner Mongolia Key Lab of River and Lake Ecology, School of Ecology and Environment, University of Inner Mongolia, Hohhot, China
推荐引用方式 GB/T 7714	Li D.,Li Z.,Zhou Y.,et al. Substantial Increases in the Water and Sediment Fluxes in the Headwater Region of the Tibetan Plateau in Response to Global Warming[J],2020,47(11).
APA	Li D.,Li Z.,Zhou Y.,&Lu X..(2020).Substantial Increases in the Water and Sediment Fluxes in the Headwater Region of the Tibetan Plateau in Response to Global Warming.Geophysical Research Letters,47(11).
MLA	Li D.,et al."Substantial Increases in the Water and Sediment Fluxes in the Headwater Region of the Tibetan Plateau in Response to Global Warming".Geophysical Research Letters 47.11(2020).