城市公园绿地植物群落配置模式的抑菌功能

Antibacterial Function of Plant Community under Different Collocation Patterns in a Urban Park

以淮安市钵池山公园不同配置的植物群落为样地,测定分析其抑菌功能。结果表明:植物群落具有一定的抑菌作用。单一树种群落配置中以雪松(Cedrus deodora)的抑菌效果最好;复层群落配置乔木层中的香樟(Cinnamonum campora)和女贞(Ligustrum lucidum)的抑菌效果比较明显,地被中八角金盘(Fatsia japonica)的抑菌效果最好。植物群落的抑菌效果因树种及环境差异,一天中的不同时刻其表现也不尽相同,2个复层林均在13:30时的抑菌效果最差;冬天常绿树种群落的抑菌效果比落叶树种复层配置的要好。

An experiment was conducted to study the antibacterial function of plant communities under different collocation patterns using the plant communities in Bochishan Park in Huai＇an City,Jiangsu Province as the testing objects. Results indicate that the plant communities have a certain degree of antibacterial action. The community composed of single plant species of Cedrus deodara exhibits the best antibacterial function,while for the multi-level plant community,the most obvious antibacterial functions of Cinnamomum camphora and Ligustrum lucidum in the arbor layer and Fatsia japonica in the litter layer were observed. The antibacterial effect of the plant community varies with tree species composition and environment,and even the antibacterial actions at different times of the day are various. The antibacterial effects of two multi-level plant communities were the worst at 15：30,and that of the multi-level plant community composed of evergreen tree species in winter was better.