Study on the Adaptability of Pinus Ponderosa in Different Regions of Shanxi Province
The afforestation experiment was carried out in 5 different site areas of Shanxi province,and the effects of different site con-ditions on afforestation survival rate,tree height and diameter were analyzed,the results showed that the growth adaptability of P.Sibirica in different areas of Shanxi province was strong,the growth volume was large,and there were no diseases and insect pests.There was no significant difference in height and diameter growth of Pinus elliottii under different altitudes and precipitation.Under dif-ferent altitudes of Zuoyun,Jingle and Yangcheng,it can be preliminarily considered that P.Sibirica is suitable to grow in different are-as of Shanxi province.