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Quantification of Impacts of Precipitation Change and Human Activities on Streamflow in the Yanhe River Basin
Authors
俞方圆
尹润生
邱临静
郑粉莉
Publication date
1 January 2011
Publisher
Abstract
利用Mann-Kendall突变检验法对延河流域1952—2008年降水量与甘谷驿站径流量进行分析,并以1952—1994年为基准期,定量分析1995—2008年降水变化和人类活动对径流的影响。结果表明:57年来延河流域正常降水发生概率达80.7%,径流年型以偏枯和枯水年为主;年降水量和径流量均呈减少趋势,突变分别发生在1995和2005年;与1952—1994年相比,1995—2008年的降水量和径流量较基准期分别减少11.1%和27.3%;降水变化和人类活动对径流减少的贡献率分别为46.2%和53.8%
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Full text
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Institute of Soil and Water Conservation,Chinese Academy of Sciences and Ministry of Water Resources
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Last time updated on 21/09/2018