Freely of undulating hills of whole drainage area, gully, landform is broken, cliff sex is granite gneiss, soil is sandy loam more, thick, quality of a material differs grain.

• 整个流域山峦起伏、沟壑纵横、地形破碎，岩性为花岗片麻岩，土壤多为砂壤土，颗粒粗、质地差。