摘要
文章以南宁市不同功能分区绿地植被和城郊大规模绿地为研究对象，分析不同城市功能分区空气细菌状况，绿化覆盖率及不同植被配置方式对空气减菌效应的影响，以其找出城市绿地中较佳的减菌模式，为今后环境规划设计时提供科学合理的依据。研究结果表明，就减菌效应而言，城郊大规模绿地的空气质量优于城区绿地；不同绿地植物配置模式对空气细菌的减菌率由大到小依次为；乔灌草〉乔草〉稀乔水〉草地〉稀灌；植被配置的复层结构（乔灌草）〉简单植被配置结构（乔灌、乔草、灌草）〉单一配置结构（草坪、稀乔、稀灌草）；空气细菌含量随绿化覆盖率增加而降低，二者之间呈负相关的趋势。
Based on the research object of Greenland at different functional districts in Nanning and large scale Greenland in the suburb, we analyze on the effect of content of air bacteria, rate of afforestation（plant coverage, the rate of greenbelt cover）, different vegetation configuration at the different functional districts in urban Greenland. for finding out optimal model of decreasing bacteria. The result of the research indicate that, as for the effect of decreasing bacteria, the air quality of different place configuration as follow： Greenland on large scale in suburb is better than urban; vegetation with multi-structure is better than that with simple structure, and better than single vegetation arranging model. Concretely, arbor ＋ brush ＋ grass 〉 arbor -4- grass 〉 sparse arbor＋ resting water 〉grass〉 sparse brush. Along with the rising of the green cover percentage, the content of the air bacteria decrease accordingly.
出处
《环境科学与技术》
CAS
CSCD
北大核心
2009年第B06期44-47,共4页
Environmental Science & Technology
基金
江苏省环境科学研究院人才培养基金（Rc0805）.
关键词
城市绿地
植被配置
空气细菌含量
南宁
Urban Greenland
Vegetation configuration
content of air bacteria
Nanning
