临沂市主要绿化树种对大气重金属富集效应的初步研究  

Preliminary Study on Enrichment Effect of Heavy Metals of Major Greening Species in Linyi

作　　者：隋超英 孙亚旭 李舒月 杨月莹 时婷婷[1] 陈永亮[1] SUI Chaoying;SUN Yaxu;LI Shuyue;YANG Yueing;SHI Tingting;CHEN Yongliang(College of Life Science,Linyi University,Linyi Shandong 276005)

机构地区：[1]临沂大学生命科学学院,山东临沂276005

出　　处：《山东林业科技》2022年第4期81-84,共4页Journal of Shandong Forestry Science and Technology

基　　金：临沂大学创新创业训练计划项目(项目编号:X202110452114)。

摘　　要：对临沂市不同程度污染区域(重度污染区、中度污染区和清洁区)及不同季节(春季、秋季)主要绿化树种叶片中镉(Cd)和铅(Pb)的含量进行了测定与分析。结果表明:黑松(Pinus thunbergii)、雪松(Cedrus deodara)和白皮松(Pinus bungeana)等树种对镉的富集效应较强,女贞(Ligustrum quihoui)、毛白杨(Populus tomentosa)和银杏(Ginkgo biloba)等树对铅的富集效应较强;同一绿化树种叶片中的镉和铅含量,均表现为重度污染区>中度污染区>清洁区,且差异显著(p<0.05);就同一树种叶片中镉、铅含量的季节变化而言,其规律明显表现为春季较低,秋季较高。The contents of Cd and Pb in leaves of major greening tree species in different polluted areas of Linyi city were determined and analyzed..The result showed that accumulation abilities of heavy metals in leaves varied among tree species.Enrichment abilities of Cd for Pinus thunbergii,Cedrus deodara and Pinus bungeana were stronger,while Ligustrum quihoui,Populus tomentosa and Ginkgo biloba were excellent in absorbing Pb.For the same tree species in different polluting area,the contents of Cd and Pb in leaves revealed heavily polluted area>moderately polluted area>clean area,and revealed a significance of difference(p<0.05).For different reasons,the contents of Cd and Pb in leaves were significantly higher in autumn than those in spring.

关 键 词：绿化树种 重金属 富集效应 镉 铅 

分 类 号：X173[环境科学与工程—环境科学]