Water yield responses to climate change and variability across the North-South Transect of Eastern China (NSTEC)

CORC > 生态环境研究中心 > 中国科学院生态环境研究中心 > 城市与区域生态国家重点实验室

	Water yield responses to climate change and variability across the North-South Transect of Eastern China (NSTEC)
	Lu, Nan ; Sun, Ge ; Feng, Xiaoming ; Fu, Bojie
刊名	JOURNAL OF HYDROLOGY
	2013
卷号	481 页码:96-105
通讯作者	Lu, N
中文摘要	China is facing a growing water crisis due to climate and land use change, and rise in human water demand across this rapidly developing country. Understanding the spatial and temporal ecohydrologic responses to climate change is critical to sustainable water resource management. We investigated water yield (WY) responses to historical (1981-2000) and projected potential climate changes across a large and complex climatic and land cover gradients over the North-South Transect of Eastern China (NSTEC, a standard terrestrial transect of the International GeoBiological Project, IGBP). After an annual scale evapotranspiration (ET) model was validated with historical streamflow records from ten watersheds, the model was applied to the NSTEC that encompasses seven climatic zones. We found that (1) The spatial and temporal variations of WY were highly dependent on precipitation (P) patterns during 1981-2000. Overall, the influences of significant temperature (T) rise on the trend of WY were suppressed by the insignificant P change during 1981-2000. (2) The long-term mean WY by climatic zone had a similar pattern as P. The different climatic zones had differential contributions to the total volumetric WY of the NSTEC. Within each climatic zone, the volumetric WY for each land cover type was highly dependent on its area of each land cover. (3) Corresponding to the P pattern, the mean WY decreased from the low (South) to high latitude (North), but the rates of changes varied along the NSTEC. Along the NSTEC, the sensitivity of WY to potential T and P changes increased from the high latitude to the low latitude. Future potential changes in WY are likely to follow changes in P with some modification by changes in energy availability. We conclude that precipitation is a major driver for water resource availability, and reliable prediction of future precipitation change patterns is critical to hydrologic forecast across the study region. (c) 2012 Elsevier B.V. All rights reserved.
收录类别	SCI
WOS记录号	WOS:000315837400010
公开日期	2014-06-04
内容类型	期刊论文
源URL	[http://ir.rcees.ac.cn/handle/311016/7318]
专题	生态环境研究中心_城市与区域生态国家重点实验室
推荐引用方式 GB/T 7714	Lu, Nan,Sun, Ge,Feng, Xiaoming,et al. Water yield responses to climate change and variability across the North-South Transect of Eastern China (NSTEC)[J]. JOURNAL OF HYDROLOGY,2013,481:96-105.
APA	Lu, Nan,Sun, Ge,Feng, Xiaoming,&Fu, Bojie.(2013).Water yield responses to climate change and variability across the North-South Transect of Eastern China (NSTEC).JOURNAL OF HYDROLOGY,481,96-105.
MLA	Lu, Nan,et al."Water yield responses to climate change and variability across the North-South Transect of Eastern China (NSTEC)".JOURNAL OF HYDROLOGY 481(2013):96-105.