Title: Analysis on variation trend of rainfall- runoff relationship in Xihanshui Basin of Jialing River
Abstract: In order to quantitatively sutdy the runoff variation of upper Jialing River region,based on the annual precipitation and runoff data of Xihanshui Basin from 1969 to 2011,the trend of rainfall,runoff and the rainfall- runoff relationship is statistically analyzed by liner regression,Mann- Kendall method and Spearman rank correlation method. The results revealed that the annual precipitation of Xihanshui Basin showed a slight decrease trend,but the runoff declined by 49% in average during research period; the rainfall- runoff relationship changed significantly after 1993 due to the influence of soil and water conservation measures and water consumption increase.
Publication Year: 2014
Publication Date: 2014-01-01
Language: en
Type: article
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