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《Journal of Beijing University of Agriculture》 2018-01
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Study on the atmospheric particulate matters adsorption capacity of different tree species in urban forest park of Beijing

WANG Meng;LIU Yichao;LIANG Qiong;LIU Yun;CHEN Bo;Plant Science and Technology College,Beijing University of Agriculture/Beijing Collaborative Innovation Center for Eco-Environmental Improvement with Forestry and Fruit Trees;Forestry and Pomology Institute,Beijing Academy of Agriculture and Forestry Sciences;  
【Objective】The study aimed to understand the adsorption capacity of different tree species to atmospheric particulate matters in urban forest park of Beijing to select the afforestation tree species with high adsorption capacity.【Methods】Ten tree species including Pinus tabuliformis,Picea meyeri Rehd.et Wils,Juniperus formosana Hayata,Sophora japonica,Populus tomentosa,Fraxinus chinensis,Prunus Cerasifera,Amygdalus triloba,Malus micromalus,and Syringa oblata Lindl were chosen as study objects in the Olympic Forest Park.Using aerosol generator(QRJZFSQ-I)the adsorption amounts of TSP,PM10,PM2.5 and PM1.0 per unit leaf area were measured,and the leaf surface morphological characteristics were also analyzed by caning electron microscopy.【Results】The results showed that atmospheric particulate matter adsorption capacity of different tree species were different significantly,and the adsorption capacity of coniferous trees was higher than that of broad-leaf trees.For TSP,PM10,PM2.5 and PM1.0,P.tabuliformis and P.meyeri Rehd.et Wils presented the highest adsorption ca-pacity.The TSP and PM10 adsorption capacity of S.oblata Lindl and P.tomentosa were the lowest.For PM2.5 and PM1.0,P.tomentosa,P.Cerasiferaexhibited the lowest adsorption capacity.【Conclusion】The leaves covered with dense grooves,stomas,and epidermal hairs were beneficial for particulate matter adsorption.On the contrary,the smooth leaves adhered the fewer particulate matters.In summary,the coniferous trees whose leaves was of a large number of grooves and stomas presented higher adsorption capacity and adsorption amount than the broad-leaf trees.In consideration of the adsorption effect of particulate matter,the coniferous trees such as P.tabuliformis and P.meyeri Rehd.et Wils were preferred in afforestation.The results provide reference for revealing the adsorption mechanism of atmospheric particulate matters by different tree species and the rational selection of tree species in the park.
【Fund】: 科技创新服务能力建设-协同创新中心-林果业生态环境功能提升协同创新中心项目(PXM2017_014207_000043);; 北京农学院智库建设项目(ZHK201701);北京农学院青年教师科研基金(SXQN2016103);; 北京市委组织部优秀人才项目(2015000020124G055)
【CateGory Index】: S688;X513
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