Effects of Different Altitudes on the Growth of Picea mongolica Saplings in the Northern Yanshan Mountains
Picea mongolica is an indigenous species in Inner Mongolia and an excellent choice for land-scaping,sand control,and afforestation in barren mountains.Currently,the artificial forests of Picea mongolica in Chifeng are predominantly in their young and middle-aged stages.Using the transect sur-vey method,this study investigated the growth of Picea mongolica saplings in the artificial forest on the northeast slope of the northern Yanshan Mountains in the Wangyedian Experimental Forest Farm,Kalaqin Qi.The results indicate that on semi-shaded slopes,the survival rate of 3.5-year-old seedling con-tainer saplings planted during the rainy season is significantly higher at altitudes below 1 400 m compared to those above 1 400 m.As altitude increases,the average height of the saplings shows a decreasing trend,reaching significant differences after 5 to 8 years of afforestation.The differences in average crown width were not significant.
万方数据
维普
