摘要
通过样地调查对长春市主要广场的城市森林结构进行分析得出:广场森林的密度为160株/hm2,广场共有乔木树种52种,花灌木30种。树木的平均胸径为21.6cm,树木的总叶面积为739172.8m2,叶面积指数为1.2,广场森林总生物量为5174.2t,Shannon-Wiener指数平均为1.7。从以上分析可以看出长春市主要广场园林植物种类丰富,并已达到森林水平可以发挥出很大生态效益。
The urban forest structure has been investigated using sample method in this paper. The results show that the forest density of main square in Changchun is 150trees/hm^2, there are 52 species trees and 30 species shrubs, the average DBH is 21. 6cm, the total leaf area of trees is 3739172.8m^2, the LAI is 1. 2. the total hiomass is 5174. 2t, The Shannon- Wiener, s value is 1. 7. From the above analysis we can see kinds of plants in the botanical garden of the main square are rich and they have already achieved the forest level, which may display the great ecological benefit.
出处
《长春大学学报》
2005年第6期84-85,共2页
Journal of Changchun University
关键词
长春市
广场
城市森林
结构
Changchuncity
square
urban forest
structure
