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	Temporal-Spatial Climate Variability in the Headwater Drainage Basins of the Yangtze River and Yellow River, China
	Sang Y. F. ; Wang Z. G. ; Liu C. M. ; Gong T. L.
	2013
关键词	soil-moisture recent trends precipitation discharge series rainfall impacts maximum sea
英文摘要	Variability of the climate in the headwater drainage basins of the Yangtze River and Yellow River during 1961-2010 was investigated by examining four typical climatic variables: daily minimum, mean, and maximum temperatures and daily precipitation. The results indicate that the temporal trends vary among the climatic variables and the time periods examined. The increase in daily minimum temperature began later than the daily mean and maximum temperatures, but the increase rate of the former was relatively greater after 1985. The abrupt increases in precipitation that occurred near 1978 were much clearer than the three temperature variables. Four dominant periodicities (3, 7, 11, and 18-20 yr) of temperature and precipitation were identified, and these variation patterns directly determined the periodic discharge variations in the two rivers. Under climate change impacts, periodic variations in temperature and precipitation at long temporal scales were intensified after the 1980s. Comparatively, climate change more severely impacts the minimum temperature and precipitation than the maximum and mean temperatures in the study area, and the variability of daily precipitation is more complex than the three temperature variables. Overall, the headwater drainage basin of the Yellow River is more susceptible to climate change compared with the other basin. After 2008, the increase rate of temperature (especially the daily mean and minimum temperatures) became greater, and precipitation showed a downward trend in the study areas. These trends are unfavorable for the safety of water resources and for eco-environmental safety in the two basins.
出处	Journal of Climate
卷	26
期	14
页	5061-5071
收录类别	SCI
语种	英语
ISSN号	0894-8755
内容类型	SCI/SSCI论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/30282]
专题	地理科学与资源研究所_历年回溯文献
推荐引用方式 GB/T 7714	Sang Y. F.,Wang Z. G.,Liu C. M.,et al. Temporal-Spatial Climate Variability in the Headwater Drainage Basins of the Yangtze River and Yellow River, China. 2013.

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