摘要
为研究托克逊城市不同功能区道路绿地对PM_(2.5)、PM_(10)的削减作用,在不同宽度和不同配置结构的绿地内布设监测点对PM_(2.5)、PM_(10)浓度进行监测,并计算其消减率。结果显示:不同功能区道路绿地内PM_(2.5)、PM_(10)浓度差异显著;颗粒物从道路扩散至绿地内3~10 m处浓度增加,随后规律不同;不同功能区道路绿地对PM_(2.5)、PM_(10)的削减作用存在差异,不同功能区道路绿地内PM_(2.5)、PM_(10)浓度表现为:空地>交通枢纽区>住宅区>公园绿地>城郊区;削减率表现为:空地>城郊区>交通枢纽区>公园绿地>住宅区;宽度上,城郊区道路绿地配置在30 m处效果优良;交通枢纽区、空地道路绿地应配置50 m,以发挥最佳滞尘效果;配置结构为乔-灌-草的郁闭度较高的绿地对颗粒物的削减作用较好。
in order to study the reduction of PM_(2.5) and PM_(10) by road green space in different functional areas of the Toksun city,monitoring points were set up in green space of different width and configuration structure to monitor the concentration of PM_(2.5) and PM_(10),and the reduction rate was calculated.The results showed that the concentrations of PM_(2.5) and PM_(10) were significantly different in the road green space of different functional areas,and the concentration of particulate matter increased from the road to 3~10 m in the green space,then the rule was different.There are differences in the reduction of PM_(2.5) and PM_(10) by road green spaces in different functional areas.The concentrations of PM_(2.5) and PM_(10) in road green spaces in different functional areas are expressed as:vacant land>transportation hub area>residential area>park green space>urban suburbs.In terms of width,the effect of urban suburban road green space configuration at 30 m is excellent.The transportation hub area and the vacant land road green space shall be equipped with 50 m to play the best effect of dust retention.Green space with high canopy density and structure of trees-shrubs-herbs has a better effect on reducing particulate matter.
作者
张纯曦
阿丽亚·拜都热拉
占玉芳
鲁延芳
曾万祺
ZHANG Chun-xi;ALIYABaidourela;ZHAN Yu-fang;LU Yan-fang;ZENG Wan-qi(Zhangye Academy of Forestry Sciences,Zhangye 734000,China;College of Forestry and Horticulture/Xinjiang Agricultural University,Urumqi 830052,China;Academy of Water Resource Conservation Forests in Qilian Mountains of Gansu Province,Zhangye 734000,China)
出处
《山东农业大学学报（自然科学版）》
北大核心
2021年第6期949-954,共6页
Journal of Shandong Agricultural University：Natural Science Edition
基金
国家自然科学基金:绿洲城市路侧树种不同器官对降尘和土壤重金属的富集及转运机理研究(31971713)
国家自然科学基金青年基金:乌鲁木齐市快速公路林带对PM_(2.5)等颗粒物的阻滞作用研究(31600572)
国家博士后基金:吐鲁番城郊工业区人工防护林对土壤重金属的富集及防风蚀机理研究(2020T130554)。
关键词
城市绿地
颗粒物
消减率
Urban green space
particulate matter
reduction rate
