Assessing the effect of climate change on mean annual runoff in the Songhua River basin, China

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	Assessing the effect of climate change on mean annual runoff in the Songhua River basin, China
	Mo Xingguo
	2012
关键词	Runoff Climate change Evapotranspiration Water supply Watersheds
英文摘要	Influences of climatic change on the components of global hydrological cycle, including runoff and evapotranspiration are significant in the mid- and high-latitude basins. In this paper, the effect of climatic change on annual runoff is evaluated in a large basin-Songhua River basin which is located in the northeast of China. A method based on Budyko-type equation is applied to separate the contributions of climatic factors to changes in annual runoff from 1960 to 2008, which are computed by multiplying their partial derivatives by the slopes of trends in climate factors. Furthermore, annual runoff changes are predicted under IPCC SRES A2 and B2 scenarios with projections from five GCMs. The results showed that contribution of annual precipitation to annual runoff change was more significant than that of annual potential evapotranspiration in the Songhua River basin; and the factors contributing to annual potential evapotranspiration change were ranked as temperature, wind speed, vapour pressure, and sunshine duration. In the 2020s, 2050s, and 2080s, changes in annual runoff estimated with the GCM projections exhibited noticeable difference and ranged from - 84 to - 168 mm a-1 (-577 to - 1153% of mean annual runoff). 2011 John Wiley Sons, Ltd.
出处	Hydrological Processes
卷	26 期:7 页:1050-1061
收录类别	EI
语种	英语
内容类型	EI期刊论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/27654]
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	Mo Xingguo. Assessing the effect of climate change on mean annual runoff in the Songhua River basin, China. 2012.