南宁市主要城市道路绿化群落结构调查与分析

以南亚热带气候的南宁市城市道路绿化为研究对象，运用群落生态学方法，选取有代表性的22条道路进行植物配置组成结构分析。结果表明：南宁市现有道路绿地主要应用的乔木树种有63种（隶属27科），灌木49种（隶属26科）；出现频度最高的乔灌木分别为扁桃Amygdalus communis（63%）和黄金榕Ficus microcarpa‘Golden Leaves’（73%）；乔木与灌木的种类配比为1.3 ∶ 1；乔木的常绿、落叶树种的种类配比11 ∶ 1。垂直结构上，22条道路中有11条道路为乔灌草3层结合的立体结构，占总数的50%。目前南宁市道路绿化已形成了一定景观，但仍存在种类不够丰富，特色不够明显，景观效果较为单一等问题。应丰富植物种类，增加观花观果植物，提高乡土树种利用比例，优化植物景观配置等。图2表2参14

Plant community structure for street planting in Nanning

To provide some practical methods and strategies concerning street planting for garden-city development,a street-planting survey in Nanning,a city with a northern-subtropical climate,was conducted using a community ecology approach to determine the plant community structure along 22 major streets.Results showed a total of 63 tree species from 27 families and 49 shrub species from 26 families.The tree species with the greatest number was Amygdalus communis(63%),and the shrub species with the most individuals...