Based on the measured streamflow data at Ganguyi hydrological station and the precipitation data of five meteorological stations in Yanhe river basin,annual,seasonal precipitation and streamflow were analyzed for the period of 1952-2008,and the Moving average method,Mann-Kendall test and Sen slope method were employed to detect the long-term change of precipitation and streamflow during the study period.The results showed that the precipitation and streamflow in flood season account for 72% and 64% of avera...
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