以辽宁省大洼县三角洲平原水库坝体不同坡向、坡位、剖面深度的土壤为研究对象,分析了土壤含水率和可溶性盐总量在水平空间与垂直空间上的变异与分布特征。结果表明:与含水率相比,土壤可溶性盐总量的变异相对较高;二者均为中等变异性且变异性的趋势较一致。坝体南坡土壤的平均可溶性盐总量、平均含水率均大于北坡。不同土层之间平均可溶性盐总量从大到小的顺序为:中层>下层>表层;而平均含水率随土壤剖面深度增加而增加。不同坡位间可溶性盐总量没有显著性差异;上坡位与中坡位的平均含水率基本持平,下坡位最高。研究结果可为辽河三角洲地区平原水库堤坝及其周边盐碱土治理与植被恢复提供依据。 Taking the different slope, slope position and profile depth of the plain reservoir dam in Dawa County of Liaoning Province as the research object, the variation and distribution characteristics of soil moisture content and total soluble salt content in horizontal space and vertical space were analyzed. The results showed that compared with the water content, the total amount of soluble salts in soils was relatively high. Both of them showed medium variability and the variability tended to be consistent. The average amount of soluble salt and the average water content in the south slope of the dam are higher than those on the north slope. The order of the average amount of soluble salt between different soil layers is as follows: middle layer> lower layer> surface layer; while the average water content increases with the increase of soil profile depth. There was no significant difference in the total amount of soluble salt between different slope positions; the average water content of uphill and mid-slope positions was basically the same, and the highest downhill position. The results can provide basis for saline-alkali soil management and vegetation restoration in the plain reservoirs of Liaohe Delta area.