A field experiment was conducted in the water source area of the South-to-North Water Diversion Project,located in the D......

三峡库区紫色土坡耕地分布广，水土流失严重对５个小区降雨连续２ａ的观测和泥沙养分分析，证明免耕植橙，石坎梯地，纵横向沟等是保持水土较好的......