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《Journal of Beijing University of Agriculture》 2018-01
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Study on the atmospheric particulate matter adsorption capacity of different tree species in Tongzhou District of Beijing

LIU Yichao;WANG Meng;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】This study aimed to investigate the adsorption capacity of atmospheric particulate matter(PM)including PM10 and PM2.5 per unit leaf area among different tree species,in order to select the tree species with great adsorption capacity,providing reference for reducing air pollution.【Method】Seven common tree species in Beijing Tongzhou Grand Canal Forest Park were used as study objects..Using aerosol generator(QRJZFSQ-I),the PM adsorption amount per unit leaf area in the natural state was measured,and the leaf surface micromorphological characteristics was analyzed.【Results】For the tree species studied,the adsorption amount of PM2.5 was lower than PM10.Among these seven tree species,white poplar and elm presented the lowest adsorption amounts per unit leaf area,which of cypress and pine were the highest.【Conclusion】The tree species whose leaves are rough with high stoma density and large stomatal aperture have strong PM adsorption capacities.On the contrary,since the smooth leaves with low stoma density,small stomatal aperture or special hydrophobic structure are difficult to adhere PM the PM adsorption capacities of these tree species are weak.
【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(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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