Statistical data of the precipitation,runoff,sediment discharge from 1990 to 2005 recorded at Guanyinqiao Hydrometric Station on the upstream of the Tingjiang River was analyzed.The rainfall,runoff and sediment discharge concentrated in April,May,June and August appear as weak dual-peaks.They reach their peaks in June and August,and the highest point appear in June.Runoff correlates positively with precipitation,while neither of the two is correlated with sediment discharge,shown in regression analysis.The ...