气候变化领域集成服务门户(CCPortal): Vegetation greening concurs with increases in dry season water yield over the Upper Brahmaputra River basin

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DOI	10.1016/j.jhydrol.2021.126981
	Vegetation greening concurs with increases in dry season water yield over the Upper Brahmaputra River basin
	Li, Hao; Liu, Liu; Koppa, Akash; Shan, Baoying; Liu, Xingcai; Li, Xiuping; Niu, Qiankun; Cheng, Lei; Miralles, Diego
通讯作者	Liu, L (通讯作者)
发表日期	2021
ISSN	0022-1694
EISSN	1879-2707
卷号	603
英文摘要	Water yield (WY) in the Upper Brahmaputra River (UBR) basin is important for sustaining the ecological environment in the headstream region and supplying valuable freshwater resources downstream. While recent studies indicated the presence of warming and greening trends in the region, the effects of these changes on WY are not yet understood. Here, on the basis of the Budyko framework and a random forest model, we assess the relative importance of climate and vegetation on WY changes in the UBR basin. We find that precipitation contributes to over 90% of the increase in annual WY, and is also the most important factor for WY during the wet season. During the dry season, however, vegetation, rather than precipitation, predicts the variability in WY. We suggest that vegetation may have changed the seasonality of water by storing water in the wet periods and releasing it in dry periods, which explains why WY increases significantly during the dry season. Our findings imply that vegetation greening in the UBR basin has the potential to increase drought resilience downstream, and protect food security from drought, highlighting the value of ecological restoration for water resource management.
关键词	CLIMATE-CHANGE SOURCE REGION FORESTS VARIABILITY IMPACT FLOWS DROUGHT TRENDS SOIL
英文关键词	Vegetation greening; Water yield; Dry season; Upper Brahmaputra River basin; Climate change
语种	英语
WOS研究方向	Engineering ; Geology ; Water Resources
WOS类目	Engineering, Civil ; Geosciences, Multidisciplinary ; Water Resources
WOS记录号	WOS:000706318300056
来源期刊	JOURNAL OF HYDROLOGY
来源机构	中国科学院青藏高原研究所
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/260392
推荐引用方式 GB/T 7714	Li, Hao,Liu, Liu,Koppa, Akash,et al. Vegetation greening concurs with increases in dry season water yield over the Upper Brahmaputra River basin[J]. 中国科学院青藏高原研究所,2021,603.
APA	Li, Hao.,Liu, Liu.,Koppa, Akash.,Shan, Baoying.,Liu, Xingcai.,...&Miralles, Diego.(2021).Vegetation greening concurs with increases in dry season water yield over the Upper Brahmaputra River basin.JOURNAL OF HYDROLOGY,603.
MLA	Li, Hao,et al."Vegetation greening concurs with increases in dry season water yield over the Upper Brahmaputra River basin".JOURNAL OF HYDROLOGY 603(2021).