Study on park tree species diversity in Xuancheng City

JIANG Guo-hua; ZHANG Zhi-yong; CHU Qun-jie; HUANG Qing-feng; WU Ze-min

Abstract：The result of the research of park green tree species diversity based on 148 sampled plots in 10 parks in Xuancheng City shows that there are 171 kinds of tree species, belonging to 69 families and 121 genera. Most of them are Rosaceae trees with 11 genera and 17 species. Tree with the most important value is camphor; shrub is Malus halliana, respectively 37.236 and 10.322. Jingting Lake Park (3.611) and Aofeng Park (3.607) have the higher tree species richness index, Fushan plaza (1.276) and Zhaoting square (1.028) lower. The richness index of shrub in Jingting Lake Park (3.348) and Aofeng Park (3.294) are higher, while in Fushan plaza (0.962) and Zhaoting plaza (0.910) are lower. Tree's Simpson index and Shannon-Wiener index are consistent. The highest is Xianshan Park (0.900 and 2.512), the lowest is Zhaoting plaza (0.571 and 0.956). And the other places are similar. Shrub's Simpson index and Shannon-Wiener index are consistent too. The highest is Aofeng Park (0.896 and 2.461), similar to Jingting Lake Park (0.894 and 2.480). The lowest is Zhaoting square (0.568 and 0.937). The highest Pielou evenness index of both trees and shrubs is Aofeng Park, and the lowest is muddy river Parks.