南京城市道路绿化带生物多样性调查分析  

The Investigation of Plant Community Diversity of Urban Roads' Green Space in Nanjing

作　　者：韦薇[1] 张银龙[1] 

机构地区：[1]南京林业大学森林资源与环境学院,江苏南京210037

出　　处：《福建林业科技》2011年第1期114-118,共5页Journal of Fujian Forestry Science and Technology

基　　金：江苏省建设厅资助项目(JS20077H18);浙江省科技厅攻关项目(2004C32068)

摘　　要：通过对南京市主城区24条干道道路绿化带的生物多样性进行调查分析,结果表明:南京市现有道路绿地主要应用的植物有乔木26科45属69种,灌木19科26属34种,草本14科21属30种,其中乡土植物仅占34.6%;出现频度最高的乔、灌木分别为悬铃木、香樟(频度均为42%)、海桐(频度为64%);道路绿化带植物群落丰富度指数为5.45;道路绿化带与公园绿地的Gleason、Margalef、Shannon-Wiener指数差异较小;Simpson优势度指数0.723;Berger-Parker指数0.361,说明道路绿化带在物种丰富度以及优势种群数量都有待提高;道路绿化带灌木层的乡土植物种类比例低,少数几种灌木的集中高频度使用,植物丰富度较低。Through searching into plant communities on the 24 main trunk roads of Nanjing City,26 families 45genus 69 species of arbor , 19 families 26 genus 34species of shrubs and 14 families 21 genus 30 species of herbage were mainly applied. The native plant only accounted for 34.6% ;the highest frequency of arbor specie was Platanus acerifolia and Cinnamomum comphora （ Both Fre- quency ：42% ） and shrub specie was Pittosporum tobira （ Frequency： 64% ）. The species richness index of roads＇ green space was 5.45 ; In the reference of Gleason and Margalef, Shannon - Wienner indexes, the difference was small between the roads＇ and parks＇ green space; Simpson dominance index refered to 0. 723; Berger-Parker index was 0. 361, it meant the plant richness and the quantity of dominant species were to be improved. The shrub of roads＇ green space had the low proportion of native plant species , the high frequency of several shrubs and a low plant richness.

关 键 词：城市道路 绿化带 生物多样性 南京市 

分 类 号：S731.8[农业科学—林学]