摘要
为研究金沙江流域径流年代际的变化特性,采用金沙江流域石鼓站1951～2009年、攀枝花站1966～2009年、屏山站1940～2009年径流资料,对金沙江流域径流年代际变化特性进行了分析,结果表明,自20世纪40年代以来,金沙江流域来水年际径流变化不大,无明显增大或减小趋势。金沙江中游来水自20世纪80年代后呈小幅增加趋势,可能是由于降雨增加所致,形成原因有待进一步深入研究。
Using the runoff data of Shigu hydropower station from 1951 to 2009,Panzhihua hydropower station from 1966 to 2009 and Pingshan hydropower station from 1940 to 2009 respectively,we analyze the annual and decadal runoff variation characteristics of Jinsha River basin.The results reveal that from 1940s,the annual and decadal runoff variation remains stable generally;and from 1980s,the runoff in middle reach of Jinsha River shows a slight increasing trend,which might be a result of precipitation increase.And the formation causes need to be further investigated.
出处
《人民长江》
北大核心
2011年第6期98-100,共3页
Yangtze River
关键词
径流
变化特性
特性分析
金沙江流域
runoff
variation characteristics
analysis of characteristics
Jinsha River basin
