Grassland restoration reduces water yield in the headstream region of Yangtze River

doi:10.1038/s41598-017-02413-9

	Grassland restoration reduces water yield in the headstream region of Yangtze River
	Li, J (Li, Jia)2,3; Liu, D (Liu, Dan)3; Wang, T (Wang, Tao)2,3; Li, YN (Li, Yingnian)1,4; Wang, SP (Wang, Shiping)2,3; Yang, YT (Yang, Yuting)5; Wang, XY (Wang, Xiaoyi)3; Guo, H (Guo, Hui)3; Peng, SS (Peng, Shushi)6; Ding, JZ (Ding, Jinzhi)3
刊名	SCIENTIFIC REPORTS
	2017
卷号	7 期号:0 页码:2162
关键词	3-river Headwaters Region Tibetan Plateau Interannual Variability Alpine Grassland Climate-change Land-cover Moisture China Forests Impact
DOI	10.1038/s41598-017-02413-9
文献子类	Article
英文摘要	Large-scale ecological restoration programs are considered as one of the key strategies to enhance ecosystem services. The Headstream region of Yangtze River (HYZR), which is claimed to be China's Water Tower but witnessed the rapid grassland deterioration during 1970s-2000, has seen a series of grassland restoration programs since 2000. But few studies have thoroughly estimated the hydrological effect of this recent grassland restoration. Here we show that restoration significantly reduces growing-season water yield coefficient (WYC) from 0.37 +/- 0.07 during 1982-1999 to 0.24 +/- 0.07 during 2000-2012. Increased evapotranspiration (ET) is identified as the main driver for the observed decline in WYC. After factoring out climate change effects, vegetation restoration reduces streamflow by 9.75 +/- 0.48 mm from the period 1982-1999 to the period 2000-2012, amounting to 16.4 +/- 0. 80% of climatological growing-season streamflow. In contrary to water yield, restoration is conducive to soil water retention-an argument that is supported by long-term in-situ grazing exclusion experiment. Grassland restoration therefore improves local soil water conditions but undercuts gain in downstream water resources associated with precipitation increases.
学科主题	普通生物学
WOS研究方向	Science & Technology - Other Topics
语种	英语
WOS记录号	WOS:000401614900020
内容类型	期刊论文
源URL	[http://ir.itpcas.ac.cn/handle/131C11/8240]
专题	青藏高原研究所_图书馆
通讯作者	Wang, T; Li, YN
作者单位	1.Chinese Acad Sci, Northwest Inst Plateau Biol, Xining 810001, Peoples R China. 2.Chinese Acad Sci, CAS Ctr Excellence Tibetan Plateau Earth Sci, Beijing 100085, Peoples R China. 3.Chinese Acad Sci, Inst Tibetan Plateau Res, Key Lab Alpine Ecol & Biodivers, Beijing 100085, Peoples R China. 4.Chinese Acad Sci, Key Lab Adaptat & Evolut Plateau Biota, Xining 810001, Peoples R China. 5.CSIRO Land & Water, Canberra, ACT, Australia. 6.Univ Versailles St Quentin En Yvelines, CNRS, Commissariat Energie Atom, Lab Sci Climat & Environm, F-91191 Gif Sur Yvette, France.
推荐引用方式 GB/T 7714	Li, J ,Liu, D ,Wang, T ,et al. Grassland restoration reduces water yield in the headstream region of Yangtze River[J]. SCIENTIFIC REPORTS,2017,7(0):2162.
APA	Li, J .,Liu, D .,Wang, T .,Li, YN .,Wang, SP .,...&Li, YN.(2017).Grassland restoration reduces water yield in the headstream region of Yangtze River.SCIENTIFIC REPORTS,7(0),2162.
MLA	Li, J ,et al."Grassland restoration reduces water yield in the headstream region of Yangtze River".SCIENTIFIC REPORTS 7.0(2017):2162.