含盐的地下水是土壤盐渍化的根源,地下水位的高低是影响土壤盐渍化的决定因素。土壤学中把土壤开始盐渍化的含盐地下水位的深度称为临界深度,当地下水位达到或超过这一深度,盐分就会随着土壤毛细管孔隙上升,达到地表。反之,如能控制地 Saline groundwater is the root cause of soil salinization. The level of groundwater table is the determinant of soil salinization. In soil science, the depth of saline groundwater that begins salinization of the soil is called the critical depth. When the local water table reaches or exceeds this depth, the salt will reach the surface as the soil capillary pores rise. On the contrary, as can control