干旱区生态环境知识资源中心(Arid): Baseflow Characteristics in Alpine Rivers - a Multicatchment Analysis in Northwest China

Arid

	Baseflow Characteristics in Alpine Rivers - a Multicatchment Analysis in Northwest China
	Gan Rong; Sun Lin; Luo Yi
来源期刊	Journal of Mountain Science
ISSN	1672-6316
出版年	2015
卷号	12 期号:3 页码:614-625
英文摘要	As a component of streamflow, baseflow is critical for regulating seasonal distribution of river flows and stabilizing water supplies. Water resources in the arid area of Northwest China are mainly from multiple catchments in the alpine that could be influenced by varieties of climatic, land cover, soil and geological factors. While numerous studies have been done on streamflow, systematic analysis of baseflow in the alpine river systems is scare. Based on historical daily streamflow data and the automated digital filter method of baseflow separation, this study investigated characteristics of hydrographs of overland flow, streamflow and baseflowof river systems fed by rainfall, snowmelt, glacier melt or mixtures of these. This study also calculated the recession constants and baseflow indices of 65 river systems. While the recession constant was 0.0034- 0.0728 with a mean of 0.018, the baseflow index was 0.27-0.79 with a mean of 0.57. Further, Spearman's correlation analysis showed that the baseflow index was significantly correlated with catchment climatic factors (e.g., precipitation and temperature), topographic factors (e.g., elevation and slope) and aquifer properties represented by the recession constant. Multiple regression analysis indicated that the factors explained 65% of the variability of baseflow index in the study area.
英文关键词	Baseflow index Recession constant Snowmelt Glacier melt Streamflow
类型	Article
语种	英语
收录类别	CSCD
WOS研究方向	Geology
CSCD记录号	CSCD:5431298
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/335501
作者单位	Gan Rong, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Key Laboratory of Ecosystem Network Observation and Modeling, Chinese Academy of Sciences, Beijing 100101, China.; Sun Lin, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Key Laboratory of Ecosystem Network Observation and Modeling, Chinese Academy of Sciences, Beijing 100101, China.; Luo Yi, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Key Laboratory of Ecosystem Network Observation and Modeling, Chinese Academy of Sciences, Beijing 100101, China.
推荐引用方式 GB/T 7714	Gan Rong,Sun Lin,Luo Yi. Baseflow Characteristics in Alpine Rivers - a Multicatchment Analysis in Northwest China[J],2015,12(3):614-625.
APA	Gan Rong,Sun Lin,&Luo Yi.(2015).Baseflow Characteristics in Alpine Rivers - a Multicatchment Analysis in Northwest China.Journal of Mountain Science,12(3),614-625.
MLA	Gan Rong,et al."Baseflow Characteristics in Alpine Rivers - a Multicatchment Analysis in Northwest China".Journal of Mountain Science 12.3(2015):614-625.