Effect of slope shape on soil aggregate stability of slope farmland in black soil region

Slope erosion in the black soil region of Northeast China is complex and specific. In order to effectively control protect scarce resources, it necessary reveal law influence basic units structure on its process. This paper used three treatments Le Bissonnais (LB) method determine aggregate stability parameters erodibility K values based particle size composition. By establishing a mathematical fitting slope rate along length, found that sinusoidal function can better characterize periodic long gentle cultivated land typical region. The research shows primary mechanism breakage dissipation mechanical disturbance, while damage caused by clay expansion least.