城市道路绿地的景观取向--以怀化市为例

Landscape orientation in urban road greenbelt:Taking Huaihua as example

针对目前长江中下游大部分地区城市道路绿地建设中盲目求绿、片面求彩、模纹与造型树用得过多、对外来植物的过分亲睐等情况,以怀化市为例,调查研究了道路绿地所使用的木本园林植物、道路景观与生态效益,并提出了适于在怀化发展应用的园林植物种类,总结了城市道路绿地景观定位三原则:1)合理使用常绿树种与落叶树种,增加乡土树种的应用,以提高植物多样性水平;2)注重地方特色与民俗风情,以增加景观文化内涵;3)在群落学与景观生态学原理的指导下,合理配置园林植物,以保证群落结构稳定、景观可持续性好、生态效益优.

There are a few inadequate in the urban road greenbelt construction in most parts of the Yangtze River: to make green by planting trees blindly,to color the scenery one-sidedly,to use shaped trees and model pattern excessively and to be fond of foreign plants too much.Take Huaihua city as an example,the green woody landscape plants used in the road greenbelt,the roads landscape and the ecological benefits were studied,some garden plant species suited for development of applications in the Huaihua were proposed.It is believed that the orientation of the landscape in urban road greenbelt should be the following three-pronged approach: 1) To improve the level of plant diversity in the greenbelt in urban road by using vergreen trees and deciduous trees rationally and increasing the application of native tree species reasonably;2) To enhance the cultural quality and to increase in cultural connotations by excavating the local features,the folk customs;3) To create a stable plant community structure,a sustainable landscape and an excellent road eco-efficiency by allocating landscape plants rationally guided by the principles of landscape ecology and community.