气候变化领域集成服务门户(CCPortal): River discharge changes in the Qinghai-Tibet Plateau

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DOI	10.1007/s11434-006-0594-6
	River discharge changes in the Qinghai-Tibet Plateau
	Cao, JT; Qin, DH; Kang, ES; Li, YY
发表日期	2006
ISSN	1001-6538
起始页码	594
结束页码	600
卷号	51 期号:5
英文摘要	Annual mean discharge data of the five large rivers in the exorheic region of the Qinghai-Tibet Plateau from 1956 to 2000 are analyzed for trends with the Mann-Kendall nonparametric trend test. The results reveal that though in general no increasing trends exist in the total river discharges, significant regional differences of river discharge exist, reflecting the decreasing trends of discharge in the Yellow River and the Tongtian River (upper Changjiang River), an increasing trend in Yalong River, and inverted change in the Lancang River and Yarlung Zangbo River. Based on analyses of the seasonal discharge, it is found that climatic change had a significant effect on the seasonal variation of river discharge in the Qinghai-Tibet Plateau. In spring (from March to May) the discharge increased significantly, especially in the source area of the Yellow River. Together with the analyses on data of the mean temperature in the Northern Hemisphere and climatic data within the river basins, the relationship between discharges and mean temperature of the Northern Hemisphere is explored, which indicates that there is no increase in the stream discharge in the Qinghai-Tibet Plateau with global warming. It is probably the increasing evaporation, caused by rising temperature that offsets the hydrological effect of increasing precipitation.
英文关键词	global warming; variation of river discharge; Mann-Kendall test; hydrological cycle; Qinghai-Tibet Plateau
WOS研究方向	Science & Technology - Other Topics
WOS类目	Multidisciplinary Sciences
来源期刊	CHINESE SCIENCE BULLETIN
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/158696
作者单位	Cao, JT (corresponding author), China Meteorol Adm, Lab Climat Studies, Beijing 100081, Peoples R China.
推荐引用方式 GB/T 7714	Cao, JT,Qin, DH,Kang, ES,et al. River discharge changes in the Qinghai-Tibet Plateau[J],2006,51(5).
APA	Cao, JT,Qin, DH,Kang, ES,&Li, YY.(2006).River discharge changes in the Qinghai-Tibet Plateau.CHINESE SCIENCE BULLETIN,51(5).
MLA	Cao, JT,et al."River discharge changes in the Qinghai-Tibet Plateau".CHINESE SCIENCE BULLETIN 51.5(2006).