Tree Diversity in Green Space of the Cultural Square in New Socialist Countryside in Yuyao City

PurposeTree composition and diversity were studied in 30 green spaces of the cultural square in new socialist countryside (NSC), and the results should provide a scientific reference for the planning of NSC in Yuyao City as well as Zhejiang Province.

MethodBased on the study methods of phytosociology, tree species composition, importance value of dominant species, species diversity and construction of diameter at breast height (DBH) were analysed in various NSCs.

ResultsThere were 64 woody plants belonging to 55 genera and 41 families in the surveyed plots, among which the most abundant species were Rosaceae, followed by Aquifoliaceae, Oleaceae and Rutaceae. However, most of the families contained only one genus and one species. Cinnamomum camphora was listed in the top of importance value of arbor with 28.08%, followed by Osmanthus fragrans (9.58%), Ginkgo biloba (6.60%) and Ligustrum lucidum (4.72%). The shrubs were dominated by Photinia serratifolia (31.80%), Loropetalum chinense (12.90%) and Rhododendron simsii (8.38%). Generally, tree diversity in each surveyed plot was low, but Xianggongtan Village was better than others. The trees planted in the cultural square of NSC were young or slight adult individuals, which reflected in the DBH class with a shape of pyramid.

ConclusionThe key issues that the management department of Yuyao City need to focus on in the cultural square of NSC are improving tree diversity, optimizing the tree composition, and increasing the proportion of native tree in future.