The soil bank may be summarized two type: colluvial deposit and accretion.The different original cause provide them different characters on colluvial deposit stability and stability under water.

• 由于其成因特点的不同,这两种岸坡在物质、地形地貌上有各自的特征,由此在稳定性和遇水再造方面的性质也表现出明显的不同。