冀中平原岗、坡、洼地易溶盐的集散

THE ACCUMULATION AND DISPERSION OF THE SALT IN THE SOIL AT THE HILLOCK,SLOPE AND LOW LAND IN CENTRAL HOPEI

本文讨论了岗、坡、洼地土壤水盐的集散。在坡地的水盐状况下,盐份处于强积盐过程中。岗地一般不发生盐渍化,但在高矿化地下水下,虽为薄膜毛管湿润的水盐动态类型,土壤也可能发生盐渍化。洼地虽然处于易积盐的土壤水份状况下,但由于地下弱矿化水带的存在或形成,槽状洼地和某些碟形洼地却常常没有发生盐渍化。本文还讨论了岗、坡、洼地盐份组成的变化。

This paper deals with accumulation and dispersion of the water-salt in the soil at the hillock, slope and low land. The salt is intensely accumulated under the condition of the water-salt at the slope.The salt isn’t usually accumulated at the hiuock. Although the soil is in the dynamic type of the water-salt by the film water and capillary water at the hillock the soil salinization may also happen when the degree of mineralization of ground water is comparatively high. Although the salt in the water condition the low land is easily accumulated, the salinization do not happen at the trough-shaped low land and some dish-like low land, due to the presence and formation of the low mineralization zone.This paper also deals with the variation of the salt contituents at the hillock, slope and low land.