Especially with the degradation of water quality, the variation of hydrochemistry changes the basic modes of sediment movement, which influences the sediment transportation in the whole catchments.

• 尤其是随着水环境的日益恶化,河流水化学条件的变化影响了泥沙最基本运动形式,从而对流域泥沙输移产生了不可忽视的影响。