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在壤土和沙壤土地上采用高流量集流沟道来确定耕作对土壤分散率的影响。耕作地块上的土壤分散率要比免耕土壤大得多。基于线性恒定参数的土壤分散模型，耕作上的土壤可蚀性比免耕土的大７倍。免耕土的临界剪应力值是耕作土的２倍。当上壤可蚀性和临界剪应力值与用吊式穿透仪、十字板剪切仪测定的土壤强度系数的田间测定值相关时，土壤分散模型的决定系数有所提高。落锥系数比剪切系数更适合于模拟土壤的可蚀性和临界剪应力。线性方程和指数方程都可用来模拟土壤的分散率。土壤的可蚀性和临界剪应力都是土壤强度的线性函数，基于土壤极限剪应力的指数方程是用高流量集中水流预测土壤分散率的推荐模式。
High-volume flow channels are used on loam and sandy soils to determine the effect of farming on soil dispersion. Soil dispersion in cultivated land is much larger than in no-till soil. Based on a soil-dispersion model with a linear constant parameter, soil erodibility over farming is seven times greater than that of no-till soil. The critical shear stress of no-till soil is twice that of tilled soil. The coefficient of determination of the soil dispersion model is improved when soil erodibility and critical shear stress values correlate with field measurements of soil strength coefficients measured by a Penetrator and a cross-cut shear. The falling cone coefficient is more suitable than the shear coefficient for simulating soil erodibility and critical shear stress. Both linear and exponential equations can be used to simulate soil dispersions. Soil erodibility and critical shear stress are both linear functions of soil strength. Based on the exponential equation of soil ultimate shear stress, a recommended model for predicting soil dispersion using high-flow concentrated flow is proposed.