The results showed that ① The volume of runoff was increased with the grade increase of slope;② With β≤23,the erosion was rapid increased with the grade increase of slope,and with 25≤β≤40,no obvious erosion changing with the grade of slope;③ The critical grade of erosion was between 23～25;④ The function of glope a.

According to the analysing of groundwater recharge,runoff,draining of groundwater and dynamics of springhead and so on,the authors have considered that the main causes of Baiquan springhead cutoff are the decrease in atmospheric water and artificial overexploitation groundwater.

Based on EMD the multiple time-scale analysis to the changes of natural annual runoff of the Guanting Reservoir;

Study on combination forecast method of annual runoff and its application in river basin;

Impacts of soil and water conservation measures on annual runoff in the upper Chaohe River Basin in northern China based on hydrological analysis method;

Seasonal dynamics and nutrient concentrations in litter fall and the annual flows of N, P, K, Ca and Mg were studied in Longan orchard systems on eroded slope orchard of Fujian.