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通过对黄河三角洲滨海盐渍土饱和导水率的研究, 结果表明: 原状土的饱和导水率随着土壤剖面深度的增加呈现出表土层高、中间土层低、底土层又升高的趋势; 扰动土与原状土的饱和导水率差异较大, 土壤饱和导水率与土壤容重呈负相关、而与孔隙度、结构系数、团聚度等均呈正相关。原状土的饱和导水率能反映田间水分运动以及孔隙状况, 对研究土壤水量平衡和水土保持有重要的意义。扰动土的饱和导水率对于土壤理化性质的理论研究有一定参考价值。
The results show that the saturated hydraulic conductivity of undisturbed soil shows the tendency of high surface soil layer, low intermediate soil layer and low soil layer with the increase of soil profile depth, through the study of saturated hydraulic conductivity of coastal saline soil in Yellow River Delta The saturated hydraulic conductivity of disturbed and undisturbed soil varied greatly. Soil saturated hydraulic conductivity was negatively correlated with soil bulk density, but positively correlated with porosity, structural coefficient and aggregate. The saturated hydraulic conductivity of undisturbed soil can reflect the movement of water in the field as well as the state of pores, which is of great significance for studying soil water balance and soil and water conservation. The saturated hydraulic conductivity of disturbed soil has some reference value for the theoretical research of soil physical and chemical properties.