[1]武晓红,张先平*,李晓迪,等. 太原市森林公园林带对空气PM2.5的净化效率[J].西北林学院学报,2020,35(2):260-265.[doi:10.3969/j.issn.1001-7461.2020.02.39]
 WU Xiao-hong,ZHANG Xian-ping*,LI Xiao-di,et al. Characteristics of the Variation of PM2.5 Concentration in Forest Belt of Taiyuan Forest Park[J].JOURNAL OF NORTHWEST FORESTRY UNIVERSITY,2020,35(2):260-265.[doi:10.3969/j.issn.1001-7461.2020.02.39]
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 太原市森林公园林带对空气PM2.5的净化效率()
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《西北林学院学报》[ISSN:1001-7461/CN:61-1202/S]

卷:
第35卷
期数:
2020年第2期
页码:
260-265
栏目:
出版日期:
2020-03-31

文章信息/Info

Title:
 Characteristics of the Variation of PM2.5 Concentration in Forest Belt of Taiyuan Forest Park
文章编号:
1001-7461(2020)02-0260-06
作者:
 武晓红1张先平12*李晓迪1闫彩云1宋丽红3耿红4
 (1.山西林业职业技术学院 林学系,山西 太原 030009;2.太原学院 园艺系,山西 太原 030012;3.太原市环境监测中心站,山西 太原 030002;4.山西大学 环境科学研究所,山西 太原 030006)
Author(s):
 WU Xiao-hong1ZHANG Xian-ping12*LI Xiao-di1YAN Cai-yun1SONG Li-hong3GENG Hong4
 (1.Department of Forestry,Shanxi Forestry Vocational and Technical College,Taiyuan 030009,Shanxi,China; 2.Department of Horticulture,Taiyuan University,Taiyuan 030012,Shanxi,China; 3.Taiyuan Environmental Monitoring Station,Taiyuan 030002,Shanxi,China; 4.Institute of Environmental Science,Shanxi University,Taiyuan 030006,Shanxi,China)
关键词:
 林带PM2.5净化效率空气质量太原市
Keywords:
 forest belt PM2.5 purification efficiency regional air quality Taiyuan
分类号:
S731.2
DOI:
10.3969/j.issn.1001-7461.2020.02.39
文献标志码:
A
摘要:
 开展城市绿地滞尘效应研究对指导城市绿地建设具有重要科学意义。为了研究城市交通主干道周边绿地的滞尘效应,以太原市森林公园西侧紧邻滨河东路南北长600 m,东西宽100 m的针叶混交林带为研究对象,在林带最西侧与道路交界处设对照点(0 m),由西向东垂直于路面在林带内分别设置20、40、60、80 m 4个监测点,用中流量大气PM2.5采样器(100 L/min)在各点对PM2.5进行日间采样,分析林带内PM2.5浓度的变化特征并计算林带对PM2.5的净化效率。结果表明:1)林带宽度影响其对大气PM2.5的净化效率,从20~60 m的净化效率逐渐提高,80 m处略低于60 m;2)林带对局部空气PM2.5净化效率与区域空气质量呈负相关,当空气质量为优良时,林带可以有效地降低局部PM2.5,当空气质量为中重度污染时,林带20~40 m宽处会聚集较高浓度的PM2.5;3)林带内分时段净化效率显示,9:30-11:00的净化效率最低,12:30-17:00净化效率较高,且15:30-17:00林内PM2.5质量浓度最低,提示该时段适宜市民在公园内活动。
Abstract:
 The study of dust retention effect is of great significance to guide the construction of urban green space scientifically and rationally.In order to study the dust detention effect of urban green space on main traffic roads,the typical coniferous mixed forest belt (600 m south-north×150 m east-weast) adjacent to east Binhe road on the west side of Taiyuan Forest Park was taken as the research object,and five monitoring points,0 (control point,and this point located at the edge between forest belt and Binhe road),20,40,60,80 m,were set up.Then PM2.5 of each point was monitored by mid-flow sampler during the day,and characteristics of the variation of PM2.5 concentration in the forest belt were analyzed.The results showed that:1) the width of the forest belt affected the purification efficiency of PM2.5,and the purification efficiency increased from 20 m to 60 m while slightly lower than 60 m at 80 m,indicating that the 60m width of forest belt on the main traffic road can effectively purify air particular.2) The purification efficiency of PM2.5 for local air was negatively correlated with regional air quality.When air quality was good,the forest belt could effectively reduce the local PM2.5 concentration.When air quality was moderately or severely polluted,the forest belt would focus on the higher concentration of PM2.5 at 20-40 m width,indicating that the forest belt ecosystem has a threshold value for dust detention.3) The purification efficiency of different time periods in the forest belt showed that the purification efficiency was the lowest at 9:30-11:00,higher at 12:30-17:00,and the PM2.5 concentration in the forest was the lowest at 15:30-17:00,which is suitable for public activities in the park.

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备注/Memo

备注/Memo:
 收稿日期:2019-05-07修回日期:2019-10-28
基金项目:生态环保部大气重污染成因与治理攻关项目(DQGG0208);山西省重点研发计划项目(社发)(201803D31025);山西省林业科技创新项目(2016050)。
作者简介:武晓红,女,讲师,在读硕土,研究方向:生态环境学。E-mail:975065476@qq.com
*通信作者:张先平,女,教授,博士,研究方向:植被生态学。E-mail:492889505@qq.com
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