<正>在对南京牛首山地区进行植物调查和标本采集的基础上，进行了该地区植物区系基本组成科、属、种的分析，对其植物区系特点进行了总结，并与相似纬度的南京幕府山开发保护区、盱眙铁山寺自然保护区以及安徽黄山风景区3个地点的植物区系进行了R/T比值的比较，以及相似性系数的比较。结果表明，牛首山与幕府山植物在属的相似性上最大；牛首山与铁山寺植物在种的相似性上最大。

Based on remote sensing and the investigation in Wuhan steel & iron industrial district, the species composition and the relationship between greenland species abundance and greenland type,patch size,community structure and region difference is analyzed. The result indicates that.. (1)The life-form spectrum of garden plants accords with subtropical climate. Garden plant species abundance is high and the prevalent is native species, which consists of 69 families,146 genera and 229 species; (2)Among 5 types of greenland,the species abundance of the public park is highest, but nursery and other greenland are lowest. With the increasing of greenland patch size and community structure, the species abundance improves respectively, whereas the variety of abundance is little during patches size varying 0. 1～10 hm2. The weighing species abundance(St) diversities of different regions are remarkable, where industrial port is the highest(S,.=9.38), living district is moderate(St=7.40) and factory area is lowest(St:6.80).