Study on influence of climatic variation on runoff of Upper Heihe River
Based on the measured data of the temperature,precipitation,evaporation and runoff of the Upper Heihe River from 1981 to 2012,the variation characteristics of the climate and runoff therein for 32 years are analyzed with the statistical method.the result shows that(1) In recent 10 years,the temperature rises obviously along with the significant decrease of the evaporation; (2) the precipitation and runoff show an inapparent increasing tendency; (3) the precipitation is the main factor to influence the increase of the runoff within the region of the Upper Heihe River,while the slight increase of the annual runoff is mainly attributed to the increase of the precipitation and the decrease of the evaporation in summer.
climatic variationhydrologic processUpper Heihe River
国家科技期刊平台
NSTL
万方数据
维普
