The Research On The Plant Configuration Of The Parkland In Changde

Urban park green space not only provides a good living environment for urban residents, but also provides a suitable habitat for urban biodiversity. The urban green space system is an important part of the urban construction and can enhance the ability of maintaining the natural landscape of the city. Urban park green space can promote harmony between urban presidents and natural biological as well as can improve the stability of the urban ecosystem. In view of this, research on urban park green space plant configuration is very important.This paper selects five parks in Changde for the study. Investigations and analyses were carried out to study the current situation of Changde Park Green Space plant configuration. The study explores the characteristics of species composition, flora distribution, ratio of plant and other aspects of plant communities in Changde park green space. It analyzes the structural characteristics and problems of plant communities in Changde park green space. More reasonable, powerful, scientific and artistic plant configuration optimization suggestions was concluded to provide references for the ecological city construction of Changde. The main contents are as follows:(1) Surveys show there are 156 kinds of main plants,124 genera belonging to 67 families, which are used in Changde Urban park. The main plant families are Lauraceae, Oleaceae, Leguminosae, Rosaceae, magnolia, Poaceae, Asteraceae and so on.(2) The plant configuration of Qu Yua Park, Lakeside Park, Poem Wall Park, White Horse Lake Cultural Park, willow Lake Park were analyzed and the characteristics of plant configuration of each park were summarized.(3) Studies show that the ratio between trees and shrubs in Changde park green space is about 1:5. More vine plants should be used in the future. The White Horse Lake Cultural Park is the most abundant in aquatic plants.(4) The highest trees richness index of Changde park green space is about 6.6310 of the Willow Lake park; The highest diversity index is 0.8475 of Qu Yuan Park; The lowest trees richness index and diversity indexs of the parks is the White Horse Lake Cultural Park.(5) The plants number ratio between local species and introduced species is about 1:0.64. The main local trees are camphor, osmanthus, camellia, crape myrtle, etc. The introduced trees are Oriental Cherry, yellow Cassia and so on. Survey shows there are 20 kinds of foliage trees,26 kinds of flowering trees and 11 kinds of fruit trees. Among all of these trees, there are 60% evergreen trees.(6) The plant configuration mode of Changde park green space mainly is arbor-shrub grass. Lakeside Park also appropriate uses arbor-shrub mode. While, the plant configuration mode of White Horse Lake Cultural Park is more diversified and mainly is arbor-shrub-grass and arbor-grass mode.