Crop cover factor estimating for soil loss prediction
黄土高原土壤侵蚀作物覆盖因子计算

Land use and crop characteristics influence soil loss obviously,so that a quantitative evaluation of the effect of different crops on soil loss(crop factor)is essential to land use and soil conservation planning.The effect of a given crop on soil erosion varies a great deal within the period from seeding to harvest because crop characteristics and canopy cover varies greatly in different seasons.Moreover,the distribution of the erosive rainfall within a year differs for different localities.Therefore,crop f...