Planning And Surveying Of Landscaping Tree Speies In Yinchuan

Reasonable configuration of urban garden greening tree species can better improve the urban ecological environment and reflect city characteristics. Therefore, city garden greening tree species for urban construction plays an important role. Through the investigation about the application of Yin-Chuan garden greening tree species, sum up the using rule and methodof garden greening tree species, it has important guiding significance for the construction of Yin-Chuan city.This study began in March 2014 to November 2014, the Yin-Chuan green space system of landscaping tree species were investigated.With the method of field survey, we investigat and study the garden greening tree species, distribution, structure, growth, curing condition and plant diversity and so on. The results of the survey is as follows:(1) 205 yinchuan existing landscaping tree species, belonging to 45 families,98 genera,104 kind of arbor, shrub 95 kinds, woody vines of 6. Public green space and residential green space, the most abundant species of tree species with 117 kinds of greening tree species,100 kinds of units affiliated green space, road traffic, second, there were 81 species,81 kinds of greening tree species, protective green tree species at least, there are 30 kinds.(2) In yinchuan 205 kinds of greening tree species, rosaceae, leguminosae, oleaceae, caprifoliaceae, cupressaceae, salicaceae 115kinds of greening tree species and other 6 families, proportion of all greening tree species is the largest, reaching 56.1%. Gymnosperms and angiosperms are 21 species,184 kinds, the ratio of 1:8.8. Evergreen trees and deciduous trees there were 30species,175 kinds, the ratio of evergreen trees and deciduous trees for 1:5.8.119 kinds of local tree species,86 kinds of introduced tree species, the ratio of 1:1.4. From the perspective of the ornamental characteristics of yinchuan garden greening tree species, there are 79 classes that watch a flower tree, leafy tree species 95,49 species of fruit tree species, view stem class 23 species of tree species, the concept of form class 67 kinds of species.(3) Responding to yinchuan garden greening tree species results, with the right suitable tree, satisfy multiple tree species greening purpose, configuration, meet the ecological benefit, the principle of people-oriented to planning, planning of yinchuan garden greening tree species. Recommended Sophora japonica Linn. and Elaeagnus angustifolia Linn. characteristics species to Yinchuan. Platycladus orientalis (L.) Franco, Populus alba var. pyramidalis Bge. and other seven kinds of tree species for the landscaping tone. Syringa oblata Lindl., Fraxinus chinensis Roxb. and other 25 kinds of tree species as the backbone of landscaping. Morus alba cv. Pendula, Cornus alba L.Platanus occidentalis L. and other 32 kinds of tree species commonly used. In addition, according to the different kinds of green space and landscape utility, ornamental characteristics, resistance to yinchuan garden greening tree species planning accordingly.(4) In the future Landscaping production, strong resistance should be strengthened, with special ornamental value of trees mining use, increasing the diversity of landscape trees, evergreen species increases, vertical greening plants, species composition and structure optimization, enhance the garden greening cultivated species, and to explore the native trees, highlighting the geographical characteristics.