气候变化领域集成服务门户(CCPortal): The trend on runoff variations in the Lhasa River Basin

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DOI	10.1007/s11442-008-0095-4
	The trend on runoff variations in the Lhasa River Basin
	Lin Xuedong; Zhang Yili; Yao Zhijun; Gong Tongliang; Wang Hong; Chu Duo; Liu Linshan; Zhang Fei
通讯作者	Zhang, YL (通讯作者)
发表日期	2008
ISSN	1009-637X
起始页码	95
结束页码	106
卷号	18 期号:1
英文摘要	Taking the Lhasa River Basin above Lhasa hydrological station in Tibetan Plateau as a study area, the characteristics of the annual and monthly mean runoff during 1956-2003 were analyzed, based on the hydro-data of the two hydrological stations (Lhasa and Tanggya) and the meteorological data of the three meteorological stations (Damxung, Lhasa and Tanggya). The trends and the change points of runoff and climate from 1956 to 2003 were detected using the nonparametric Mann-Kendall test and Pettitt-Mann-Whitney change-point statistics. The correlations between runoff and climate change were analyzed using multiple linear regression. The major results could be summarized as follows: (1) The annual mean runoff during the last 50 years is characterized by a great fluctuation and a positive trend with two change points (around 1970 and the early 1980s), after which the runoff tended to increase and was increasing intensively in the last 20 years. Besides, the monthly mean runoff with a positive trend is centralized in winter half-year (November to April) and some other months (May, July and September). (2) The trends of the climate change in the study area are generally consistent with the trend of the runoff, but the leading climate factors which aroused the runoff variation are distinct. Precipitation is the dominant factor influencing the annual and monthly mean runoff in summer half year, while temperature is the primary factor in winter season.
关键词	CHANGE-POINT PRECIPITATION VARIABILITY
英文关键词	Lhasa River Basin; trend of runoff variation; Pettitt change-point test; Mann-Kendall trend analysis; multiple linear regressions
语种	英语
WOS研究方向	Physical Geography
WOS类目	Geography, Physical
WOS记录号	WOS:000255193700009
来源期刊	JOURNAL OF GEOGRAPHICAL SCIENCES
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/257608
推荐引用方式 GB/T 7714	Lin Xuedong,Zhang Yili,Yao Zhijun,et al. The trend on runoff variations in the Lhasa River Basin[J]. 中国科学院青藏高原研究所,2008,18(1).
APA	Lin Xuedong.,Zhang Yili.,Yao Zhijun.,Gong Tongliang.,Wang Hong.,...&Zhang Fei.(2008).The trend on runoff variations in the Lhasa River Basin.JOURNAL OF GEOGRAPHICAL SCIENCES,18(1).
MLA	Lin Xuedong,et al."The trend on runoff variations in the Lhasa River Basin".JOURNAL OF GEOGRAPHICAL SCIENCES 18.1(2008).