The main purposes of the study are to understand the growth situation of Salix psammophila germplasm resources and the classification and distribution of traits in the Mu Us sandy land in China and manage and use the Salix psammophila germplasm resources

scientifically and effectively. In order to determine the main distribution area of Salix psammophila

line transect method combined with random sampling survey method is used. Mathematical statistics is applied to analyze the variation of Salix psammophila and its grow th status. Survey results are as follows: ( 1) The height and crown range of Salix psammophila are in line with normal distribution and the variation range of crown range is greater than height . ( 2) Salix psammophila in different origin areas has significant difference in height

but no significant difference in crown range. ( 3) Salix psammophila in different origin areas differs in survival rate of cutting.