Influence of Urban Road Green Space on the Distribution and Reduction of PM2.5 Concentration(PDF)

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Title:: Influence of Urban Road Green Space on the Distribution and Reduction of PM2.5 Concentration

Author(s):: XU Huan; ZHAO Jingjing; LI Hong; (Department of Landscape and Architecture，Jiangsu Normal University，Xuzhou,Jiangsu 221116)

Keywords:: landscape architecture; PM2.5 pollution; abatement; plant disposition

Abstract:: Taking Xuzhou city，Jiangsu Province as an example，this study selected three roads on both sides of the typical urban road green space，in the greenbelt width difference set monitoring point determination of PM2.5 concentrations in order to investigate the road green space types and the width of the cut.The results showed that the reduction rate of PM2.5 was proportional to the width of green space.The width of road green space in 24 m and above could be taken to better retention of particles.The green space which taking ‘trees+shrubs+grass-trees’ as the structure and having high canopy density was more effective.As a result，the construction of four typical road greenbelt (trees+grass+shrubs-trees，trees+shrubs+grass-trees，shrubs+trees+grass-trees，grass+trees +shrubs-trees) to reduce the pollution of PM2.5 were built，supporting the configuration mode of city road green plant selection.

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Last Update: 2017-02-13