气候变化领域集成服务门户(CCPortal): Response of blue-green water to climate and vegetation changes in the water source region of China 's South-North water Diversion Project

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DOI	10.1016/j.jhydrol.2024.131061
	Response of blue-green water to climate and vegetation changes in the water source region of China 's South-North water Diversion Project
	Li, Xiaoyang; Zou, Lei; Xia, Jun; Zhang, Liping; Wang, Feiyu; Li, Minxin
发表日期	2024
ISSN	0022-1694
EISSN	1879-2707
起始页码	634
卷号	634
英文摘要	The characteristics of water fluctuations within the basin have remained ambiguous in recent years due to climate and vegetation changes, posing a challenge to the planning and utilization of regional water resources. This study coupled the Priestley -Taylor Jet Propulsion Laboratory (PT-JPL) model, which can consider vegetation dynamics information and evapotranspiration physical mechanisms, into the Distributed Time Variant Gain Model (DTVGM) to improve the hydrological simulation accuracy under changing environments. Based on different simulation scenarios of the coupled model, the effects of climate and vegetation changes on hydrological processes were fully investigated using blue and green water (BW and GW) as assessment metrics. The upper Han River Basin (UHRB), as water source for the Central Line Project of China ' s South -North Water Diversion (CSNWD), was selected as a typical basin for the study, results indicated that: (1) The DTVGM coupled with PT-JPL could better reflect the spatiotemporal patterns of major hydrological processes (runoff, evapotranspiration, and soil moisture) in UHRB from 2001 to 2019; (2) The BW in UHRB exhibited decreasing trend from 2001 to 2019, while the GW on the contrary. Surface runoff (Rs), vegetation transpiration (Et), and soil moisture (W) contributed most in the components of BW and GW; (3) Vegetation change dominated by greening in UHRB, which facilitated the transformation of BW to GW in the basin, and it increased the proportion of GW mainly by promoting Et. BW was mainly influenced by precipitation, but vegetation change altered the original correlation between climatic factors and hydrological processes. This study can support the management of water resources in the basin under changing environments.
英文关键词	Blue and green water; Climate change; Vegetation change; DTVGM; PT-JPL
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:001223497300001
来源期刊	JOURNAL OF HYDROLOGY
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/301072
作者单位	Chinese Academy of Sciences; Institute of Geographic Sciences & Natural Resources Research, CAS; Chinese Academy of Sciences; University of Chinese Academy of Sciences, CAS; Wuhan University
推荐引用方式 GB/T 7714	Li, Xiaoyang,Zou, Lei,Xia, Jun,et al. Response of blue-green water to climate and vegetation changes in the water source region of China 's South-North water Diversion Project[J],2024,634.
APA	Li, Xiaoyang,Zou, Lei,Xia, Jun,Zhang, Liping,Wang, Feiyu,&Li, Minxin.(2024).Response of blue-green water to climate and vegetation changes in the water source region of China 's South-North water Diversion Project.JOURNAL OF HYDROLOGY,634.
MLA	Li, Xiaoyang,et al."Response of blue-green water to climate and vegetation changes in the water source region of China 's South-North water Diversion Project".JOURNAL OF HYDROLOGY 634(2024).