STUDY ON PHYSIOGRAPHY AND SOIL IN RELATION TO GROWTH OF LARIX OLGENSJS IN XIFENG COUNTY

This paper deals with the functional interrelationship among physiography, soil and height growth of Larix olgensis and tries to find out the key factor influencing the height growth of L. olgensis.Stepwise multiple regression was used to determine the key factors. They were water-holding capacity of soil in the field and soil volume weight. By means of canonical variates analysis, the authors found out that water-holding capacity of soil in the field and soil volume weight were influenced by aspect. Based on the results of the study, forest site types could be classified correctly.