EXPERIMENTAL STUDY OF RUNOFF AND SEDIMENT YIELD AFFECTED BY RIDGE DIRECTION AND WIDTH OF SLOPING FARMLAND

Water and soil losses from sloping farmlands potentially contribute to water eutrophication and land INDOLE-3-CARBINOL degradation.However, few studies explored the combined effects of ridge direction and ridge width on surface runoff and soil losses of sloping farmlands.Twenty-seven experimental plots (8 m long and 4 m wide) with nine treatments (