典型文献
Biogenic volatile organic compound emission patterns and secondary pollutant formation potentials of dominant greening trees in Chengdu,southwest China
文献摘要：
Integral to the urban ecosystem,greening trees provide many ecological benefits,but the active biogenic volatile organic compounds(BVOCs)they release contribute to the produc-tion of ozone and secondary organic aerosols,which harm ambient air quality.It is,there-fore,necessary to understand the BVOC emission characteristics of dominant greening tree species and their relative contribution to secondary pollutants in various urban contexts.Consequently,this study utilized a dynamic enclosure system to collect BVOC samples of seven dominant greening tree species in urban Chengdu,Southwest China.Gas chro-matography/mass spectrometry was used to analyze the BVOC components and standard-ized BVOC emission rates of each tree species were then calculated to assess their relative potential to form secondary pollutants.We found obvious differences in the composition of BVOCs emitted by each species.Ficus virens displayed a high isoprene emission rate at 31.472 μgC/(gdw(g dry weight)·hr),while Cinnamomum camphora emitted high volumes of D-Limonene at 93.574 μgC/(gdw·hr).In terms of the BVOC emission rates by leaf area,C.camphora had the highest emission rate of total BVOCs at 13,782.59 μgC/(m2·hr),followed by Cedrus deodara with 5466.86 μgC/(m2·hr).Ginkgo biloba and Osmanthus fragrans mainly emitted oxygenated VOCs with lower overall emission rates.The high BVOC emitters like F.virens,C.camphora,and Magnolia grandiflora have high potential for significantly contribut-ing to environmental secondary pollutants,so should be cautiously considered for future planting.This study provides important implications for improving urban greening efforts for subtropical Chinese urban contexts,like Chengdu.
文献关键词：
中图分类号：
作者姓名：
Liping Liu;Barnabas C.Seyler;Hefan Liu;Li Zhou;Dongyang Chen;Song Liu;Chang Yan;Fumo Yang;Danlin Song;Qinwen Tan;Fengju Jia;Cheng Feng;Qiuwei Wang;Yunchun Li
作者机构：
College of Architecture and Environment,Sichuan University,Chengdu 610065,China;College of Science,Sichuan Agricultural University,Ya'an 625014,China;Chengdu Academy of Environmental Sciences,Chengdu 610000,China;Chengdu Ecological and Environmental Monitoring Center,Chengdu 610000,China;Longquanyi Ecology and Environment Bureau,Chengdu 610000,China
文献出处：
引用格式：
[1]Liping Liu;Barnabas C.Seyler;Hefan Liu;Li Zhou;Dongyang Chen;Song Liu;Chang Yan;Fumo Yang;Danlin Song;Qinwen Tan;Fengju Jia;Cheng Feng;Qiuwei Wang;Yunchun Li-.Biogenic volatile organic compound emission patterns and secondary pollutant formation potentials of dominant greening trees in Chengdu,southwest China)[J].环境科学学报（英文版）,2022(04):179-193
A类：
gdw,Limonene,contribut
B类：
Biogenic,volatile,organic,emission,patterns,secondary,formation,potentials,dominant,greening,trees,Chengdu,southwest,China,Integral,urban,ecosystem,many,ecological,benefits,active,biogenic,compounds,BVOCs,they,release,contribute,produc,ozone,aerosols,which,harm,ambient,air,quality,It,there,fore,necessary,understand,characteristics,species,their,relative,contribution,pollutants,various,contexts,Consequently,this,study,utilized,dynamic,enclosure,collect,samples,seven,Southwest,Gas,chro,matography,mass,spectrometry,was,used,analyze,components,standard,rates,each,were,then,calculated,assess,We,found,obvious,differences,composition,emitted,by,Ficus,virens,displayed,isoprene,gC,dry,weight,while,Cinnamomum,camphora,volumes,terms,leaf,area,had,highest,total,followed,Cedrus,deodara,Ginkgo,biloba,Osmanthus,fragrans,mainly,oxygenated,lower,overall,emitters,like,Magnolia,grandiflora,have,significantly,environmental,should,cautiously,considered,future,planting,This,provides,important,implications,improving,efforts,subtropical,Chinese
AB值：
0.525458
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