城市交通绿地木本植物多样性的调查分析

通过对长春市主要交通绿地木本植物多样性的调查研究表明，人民广场、新民广场物种多样性指数较高，但是各物种重要值差异较大，导致物种均匀度指数偏低；南湖广场物种多样性指数较低。总体上看，长春市主要交通绿地木本植物多样性不高，缺乏物种丰富度与均匀度的结合。同时，对长春市主要交通绿地增加木本植物多样性提出了改善途径，为长春市今后交通绿化提供理论依据。

Analysis and investigation of primary traffic green belt's woody plant diversity in city

Our investigation of primary traffic green belt's woody plants diversity in Changchun city indcates that the species diversity index is high in Renmin Square and Xinmin Square,but the important index of species odds greatly leading to a low species uniformity index;Nanhu Square has a lower species diversity index.The woody plants have a low diversity index in Changchun city's primary traffic green belt and lack combination of species abundance and uniformity.The paper gives advices to improve the woody plants' diversity in Changchun city's primary traffic green belt and gives theoretic base in Changchun city's traffic virescence.