气候变化领域集成服务门户(CCPortal): Response of runoff and its components to climate change and its future trend in the source region of the Yangtze River

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DOI	10.1002/hyp.15180
	Response of runoff and its components to climate change and its future trend in the source region of the Yangtze River
	Gao, Tailai; Li, Jiadi; Tang, Yuanzhi; Jiang, Xiaoxuan; Huo, Junjun
发表日期	2024
ISSN	0885-6087
EISSN	1099-1085
起始页码	38
结束页码	6
卷号	38 期号:6
英文摘要	Under global climate changes, the temperature and precipitation on the Tibetan Plateau changed significantly, causing accelerated melting of glaciers and snow and changes in runoff. The response of runoff and its components to climate change is important for water resource management and ecology conservation in the region. Therefore, the Spatial Processes in Hydrology model, a distributed cold-zone hydrological model that contains a glacial ablation module, was used to simulate runoff in the Yangtze River source located in the middle of the Tibetan Plateau during 2000-2050, and the Nash-Sutcliffe efficiency coefficient, relative error and coefficient of determination (R-2) for the calibration period and validation period revealed that the model performed well in most years. The results showed that rainfall runoff contributed the most to the total runoff (61%), followed by baseflow (23%), snowmelt runoff (12%) and glacier runoff (4%) in the Yangtze River source during 2000-2020. The runoff amounts of the three source rivers, Dangqu River, Tuotuo River and Chumar River, accounted for approximately 53% of the total runoff in the Yangtze River source basin, with rainfall runoff (52%) contributing the most and glacier runoff (6%) contributing the least. Compared to the contributions of glacial runoff in the Dangqu River (9%) and Tuotuo River (7%), the proportion of glacial runoff in the Chumar River is small (1%). Under the CMIP6 climate model, the mean runoff depth is predicted to increase by approximately 13.5 mm from 2020 to 2050 compared with that from 2000 to 2020.
英文关键词	CMIP6 climate model; runoff simulation; the spatial processes in hydrology model; the Yangtze River source
语种	英语
WOS研究方向	Water Resources
WOS类目	Water Resources
WOS记录号	WOS:001236960400001
来源期刊	HYDROLOGICAL PROCESSES
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/289166
作者单位	Yangtze River Water Resources Protection Bureau
推荐引用方式 GB/T 7714	Gao, Tailai,Li, Jiadi,Tang, Yuanzhi,et al. Response of runoff and its components to climate change and its future trend in the source region of the Yangtze River[J],2024,38(6).
APA	Gao, Tailai,Li, Jiadi,Tang, Yuanzhi,Jiang, Xiaoxuan,&Huo, Junjun.(2024).Response of runoff and its components to climate change and its future trend in the source region of the Yangtze River.HYDROLOGICAL PROCESSES,38(6).
MLA	Gao, Tailai,et al."Response of runoff and its components to climate change and its future trend in the source region of the Yangtze River".HYDROLOGICAL PROCESSES 38.6(2024).