Investigation and Strategy Study of Agricultural Soil and Water Conservation in the South of Dabie Mountains

摘要

The runoff, sediment concentration and sediment load of Wan River hydrological station in south Dabie Mountain were used as correlation indicators to investigate the regularity and possible cause of soil erosion which further provided the strategies and methods for agricultural soil and water conservation. The sediment discharge variation of Wan River was positive related with the fluctuation of runoff and sediment concentration, indicating that rainstorm in June and July is the high time of soil erosion and the storm-type of precipitation is the root cause. The key strategies for agricultural soil and water conservation should be directly focused on the heavy rainfall in June and July.