1D exponential rough soil surface
contact surface soil slippage
Deep-lying Thick Surface Soil
green field soil displacement
increasing surface soil thickness
Insects on the soil surface
lateral soil displacement
ponding on soil surface
Salt accumulation in surface soil
Seasonal surface soil erosion
soil displacement effect
soil displacement field
soil surface
表层土壤
地表覆盖
土壤地表
土壤表层
土壤表面
土壤表平面
soil surface characters