While level terrace had the functions of conserving soil and water storage, it increased the possibility of the soil pollution too.
水平梯田在具有蓄水、保土的功能的同时，也增加了土壤污染的可能性。
Grassland vegetation plays active and important role in conserving soil and water, particularly in the eco-environment construction on Loess Plateau.
草本植被具有积极的保持水土的作用，在黄土高原生态环境建设中具有不可替代的作用。
Broad-leaved forest has important and no-substitutive functions in water conservation, conserving soil and water, regulating the climate and improving the environment.
阔叶林在涵养水源、保持水土、调节气候、改善环境等方面具有十分重要的、不可替代的作用。
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