The increasing of water transmetting rate in cultivated loessial soil was larger than that in lou soil.The equations were regressed,between, and and k, they had better suitable.

• 土壤含水量一定时，随着相对偏摩尔自由能变和相对偏摩尔焓变增大，土壤非饱和导水率也增大，并且呈现出黄绵土>,土，拟合得出的相对偏摩尔自由能变和相对偏摩尔焓变与土壤非饱和导水率方程，具有较好的适应性。