包头市城市森林绿地树种选择及效果评价

以包头市东河区、青山区、昆都仑区、九原区、开发区等五个城区中公园、行道、游园、小区、厂区、防护带等景观类型中树种和群落为调查对象,利用植物物种数、丰富度、多样性指数、重要值等指标对包头市城市绿地植物群落进行调查,用层次分析法评价,对包头市城市绿化树种现状进行分析。针对出现的问题提出在今后城市绿化树种增加种类增加层片和季相,提高绿化的稳定性及不同时间的观赏要求,加大对乡土树种的开发和应用,提高适应性,以减少经济造价。  

The Tree Species Selection and its Effect Evaluation to Urban Forest in Baotou City

The tree species and the community are investigated in the parks,streets, gardens, living districts, the factory areas and the buffer zones in five districts,which include Donghe, Kundoulun,Qingshan, Jiuyuan district and the developing area in Bautou city. The status of plant community in urban green areas is surveyed and their species, richness index and biodiversity are analyzed in this paper.The result shows that the species is a few,the composition of plant community is very simple and the local trees are limited in this city. So the inharmonic trees live in a dry area the Bautou city, in which the living and ecological patterns, dimensional structures as well as their functions performs as environmental protection,decoration and creation of economical profit. Whenever the virescence works should be done. In which not only the number of tree species, but also the diversity of urban space should be considered. To reduce the cost of virescence works, the local trees should be emphasized for example with an increasing green layer and seasonal scenery.