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Baseflow Characteristics in Alpine Rivers - a Multicatchment Analysis in Northwest China
Gan Rong; Sun Lin; Luo Yi
2015
Source PublicationJournal of Mountain Science
ISSN1672-6316
Volume12Issue:3Pages:614
AbstractAs 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.
Language英语
Document Type期刊论文
Identifierhttp://ir.igsnrr.ac.cn/handle/311030/121461
Collection中国科学院地理科学与资源研究所
Affiliation中国科学院地理科学与资源研究所
First Author Affilication中国科学院地理科学与资源研究所
Recommended Citation
GB/T 7714
Gan Rong,Sun Lin,Luo Yi. Baseflow Characteristics in Alpine Rivers - a Multicatchment Analysis in Northwest China[J]. Journal of Mountain Science,2015,12(3):614.
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.
MLA Gan Rong,et al."Baseflow Characteristics in Alpine Rivers - a Multicatchment Analysis in Northwest China".Journal of Mountain Science 12.3(2015):614.
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