扬州古运河风光带生态绿地建设及环境效应研究  

Study on Construction of Ecological Greenland and Environmental Effect along the Grand Canal in Yangzhou

作　　者：赵大胜 何小弟 徐梅 曹磊 杨帆 

机构地区：[1]扬州市城市绿化办公室,江苏扬州225009 [2]扬州大学,江苏扬州I225009 [3]扬州市城市绿化养护管理处,江苏扬州225003

出　　处：《环境科学前沿（中英文版）》2013年第2期6-10,共5页Frontier of Environmental Science

基　　金：江苏省基础研究计划（自然科学基金）重点项目（BK2010038）

摘　　要：扬州古运河风光带的绿地建设类型、绿地树种配置和绿地建设模式，体现了“水、绿、古、文、秀”的地域生态景观特色，为生态城市绿地建设提供了科学有效的定量评价依据。研究结果表明，绿地树木对空气微尘有着显著的阻挡、截留和吸滞作用，复层林地模式生态环境效应优良：滞尘效应优于园路近20个百分点、优于草坪10．7个百分点；减噪效果可较硬质园路区降低噪音约7dB，可较草坪区降低噪音约4dB；抑菌功能显著，林内空气细菌含量比距林地15m处减少10．08—99．71％，比无林地的街道对照少23．59-99．78％。The construction pattern of ecological environment forest along the Grand Canal in Yangzhou city has embodied the special local ecological landscape view, as well outlined the features of this historical and cultural region characterized with abundant water and large plant cover. The study indicated that trees in greenbelt have prevention, intercept and absorption effect on mote in air, with desirable ecological environment especially in the multiple layered forest, owing to its dust detention effect superior to that of trees in garden, lawn more than 20%, and 10.7%, respectively; as well as its noise reduction effect less than 7 dB and 4 dB, separately, compared to cement garden road and lawn, and its pronounced inhibitory function explained by the fact that the amount of bacteria inside the trees is decreased by 10.08-99.71% compared to that outside the woodlands 15 m; and even less 23.59-99.78% than that in the street without woodlands.

关 键 词：古运河风光带 生态绿地 环境效应 

分 类 号：S731.2[农业科学—林学]