Study on the Soil Saturated Hydraulic Conductivity and the Infection Factors of the Main Paddy Soils in Tai-lake Region

The aim of this article is to analyze the original and disturbed soil saturated hydraulic conductivities of the three main kinds of paddy soils which including white soil,yellow mud soil and Wushan soil in Tai-lake region.In addition the infection factors of the soil saturated hydraulic conductivities have been studied,which includes bulk density,soil saturated hydraulic conductivity,soil texture,soil structure coefficient,soil aggregation,soil porosities and the organic matter capacity.The result shows that the range of original soil saturated hydraulic is between 5.16×10~(-4) and 11.62×10~(-4)cm/s,and the range of the disturbed soil saturated hydraulic is between(0.76)×10~(-4) and 3.31×10~(-4) cm/s.The surface layer's was the largest one among each layer's saturated hydraulic conductivities of the same soil section.And there was a degressive trend as the increase of depth basically.The disturbed soil saturated hydraulic conductivity was higher than the original one of the same layer.And the basic soil properties all have relativity with the soil saturated hydraulic conductivities.The experiment will offer more essential parameters to the maintenance of soil moisture,the melioration of environment and the sustaining development of agriculture.