长春高新技术产业开发区道路绿地园林植物多样性研究

Study on the diversity of garden plants of road greenbelt in high - tech industrial development zones of Changchun

以长春高新技术产业开发区道路绿地为调查对象,研究园林植物多样性,结果表明:该区道路绿地共栽植园林植物30科52属86种,一级、二级和三级道路绿地园林植物多样性Shannon-Wiener指数平均值分别为1.6、1.1、0.7,二级和三级道路绿地的植物多样性指数有待提高。外来物种或品种使用较多,乔木有13种,占道路绿地乔木种类的26.6%;花灌木5种,占花灌木种类的12.5%;宿根花卉3种,占50.0%;冷季型草坪全部为外来种,乡土物种的使用比例有待提高。

Through investigating the road greenbdt in high -tech ind,strial development zones of Changchun, the diversity of garden plants were been researched, the result showed that there were 30 families,52 genera and 86 species of garden plants in the road greenbelt. The Shannon - Wiener index of primary, secondary and terti- ary roads were 1.6,1.1,0.7 , separately. Diversity index of secondary and tertiary roads were hoped to im- prove. Alien species were put to used more, there were13 species of arbor, accounted 26.6% of road greenbelt tree species; flowering shrub were 5 species, accounted 12.5% of flower shrubs species; perennial flowers were 3 species, accounted 50.0% ; cool - season lawn was all for alien species, percentage of use of native species were hoped to improve.