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本文通过ＧＰＳ定位的网格取样和Ｑ型聚类等方法，研究了整个黄淮海平原土壤盐分的剖面特征与水平分布．结果表明：根据黄淮海平原土壤盐分的剖面构型，可将整个黄淮海平原的剖面特征分为４大类，即表聚型、 底聚型、中聚型和平衡型．从其占聚类剖面的数量而言，它们分别占总聚类剖面数的约３０％、５％、１３％和５２％．黄淮海平原各种土壤盐分剖面类型都具有明显的空间集聚性，其中表聚性剖面主要分布在徐淮及滨海地区，底聚剖面主要分布在原来盐渍化严重的豫东黄泛平原，中聚剖面主要分布在黑龙港下游地区．其它为平衡型剖面．这类剖面根据其特点，可分为山前平原土壤盐分淋溶区、鲁西南土壤盐分通体积聚区和浅层咸水影响下的土壤盐分平衡区．整个黄淮海平原土壤剖面中脱盐与积盐比例约为２∶１．所以土壤盐分以脱盐为主．
In this paper, by GPS grid sampling and Q-type clustering methods to study the profile characteristics and horizontal distribution of soil salinity in Huang-Huai-Hai Plain. The results show that according to the profile of soil salinity in the Huang-Huai-Hai Plain, the profiles of the whole Huang-Huai-Hai Plain can be divided into four categories: epiphyllous, apicotrophic, mesocosm and equilibria. They account for about 30%, 5%, 13% and 52% of the total number of clusters, respectively, from the number of their clustered profiles. The salinity profiles of all kinds of soil in the Huang-Huai-Hai Plain have obvious spatial agglomeration, of which the epicontinental profiles are mainly distributed in Xuhuai and coastal areas, and the bottom poly-profiles are mainly distributed in the original plains of eastern Yellow River with salinization serious Poly profiles are mainly distributed in the lower reaches of Heilonggang. Others are balanced profiles. According to its characteristics, this kind of profile can be divided into the soil salinity leaching zone in the piedmont plain, the soil salinity volume concentrating zone in the southwestern Shandong Province, and the salt balance zone under the influence of shallow salt water. The ratio of desalination to salt accumulation in the soil profile of Huang-Huai-Hai Plain is about 2: 1. Therefore, soil salinity to desalination based.