Analysis of Urban Woody Plant Diversity among Different Administrative Districts and the Enhancement Strategy in Changchun City, China

Species diversity plays an important role in urban ecosystem stability and sustainability. Research on woody plant among different administrative districts is vital to effectively improving biodiversity. In this study, a stratified random sampling method was used set the sample plot, spatial mapping of indices conducted, methods principal component analysis similarity were analyze species composition dissimilarity administration districts. Finally, model based relationship between forest landscape pattern built. The results showed that differed significantly Changchun. levels Qikai (QK), Lvyuan (LY), Kuancheng (KC) higher, those Nanguan (NG) Erdao (ED) lower. every district basically complied with 10/20/30 “rule thumb”. most common species, genera, families forests should not exceed proportion total abundance all species. There significant correlation each district. Margalef index (dMa) Shannon–Wiener (H′) decreased while CONTIG-MN increased, increased LSI increased. evenness J LPI DIVISION future tree selection, native be given priority as much possible, planting Salicaceae reduced, Chaoyang (CY), ED, LY strengthen links patches.