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一近来河北省盐硷土面积显著减少,这是1962年以来大搞群众性农业綜合措施治理的积极效果。我省內陆盐硷土占盐硷土总面积的72.4%,是生产中的主要矛盾。本文所說的內陆盐硷土实际是高旱型的盐硷土,与洼涝型不同,其特征是:表层积盐多,盐分在土壤剖面中的分布呈“丁”字形,地下潜水位1.5~3米,主要分布于內陆平原大小洼淀周围与河流沿岸两側及河間低地。由于不同地貌、水文地质条件以及土壤质地层次的差
In recent years, the salinized soil area in Hebei Province has been significantly reduced, which is the positive effect of vigorously promoting the comprehensive agricultural mass control measures since 1962. Inland saline-alkali soil accounts for 72.4% of the total area of saline-alkali soil, which is the main contradiction in production. In this paper, the inland salinization soil is actually a high-salinizaton salinity soil, which is different from the cooling water type. It is characterized by a large amount of surface salt, the distribution of salinity in the soil profile is “D” shape, Diving 1.5 to 3 meters, mainly distributed in the size of the Inland Plain depression around the river and both sides of the river and lowlands. Due to different topography, hydrogeological conditions and soil texture level difference