栖霞山矿区植物对重金属元素富集能力的探讨  

Study on heavy metal accumulation ability of plant in Qixia Mountain

作　　者：栾以玲[1] 姜志林[1] 吴永刚[1] 

机构地区：[1]南京林业大学森林资源与环境学院,江苏南京210037

出　　处：《南京林业大学学报（自然科学版）》2008年第6期69-72,共4页Journal of Nanjing Forestry University：Natural Sciences Edition

基　　金：长三角城市森林生态定位研究站和江苏省林业生态工程重点实验室资助项目

摘　　要：通过对南京栖霞山铅锌矿区矿粉运输道路两侧和转运站附近的土壤、木本植物和草本植物中重金属元素Cd、Pb、Zn、Cu、Mn、Cr的含量测试和分析,表明该地区土壤重金属污染十分严重。经对比筛选,木本植物中泡桐(Paulownia fortunei)、白榆(Ulmus pumila)和构树(Broussonetia papyrifera)具有较高的重金属综合富集能力,雪松(Cedrus deodara)、悬铃木(Platanus acerifolia)和女贞(Ligustrum lucidum)等树种亦有一定的富集能力,这些树种可被选为该区净化重金属污染的绿化树种;草本植物中,狗牙根(Cynodon dacytlon)的富集能力大大超过其他草本植物。因而在Cd、Pb和Zn严重污染的环境中,选择泡桐、白榆、构树和狗牙根的乔木和草本植物组合是该类污染区植物修复的有效途径。Through the test and analysis of the arboreal and herbaceous plant which spread near the transportation station of lead and zinc mineral district in Qixia Mountain in Nanjing, plant species which could purify effectively heavy metal pollution were selected. Arboreal plant Paulownia fortunei, Ulmus pumila and Broussonetia papyrifera had relatively higher complex ability to accumulate heavy metal. Cedrus deodara, Platanus acerifolia and Ligustrum lucidum also had some complex ability to accumulate heavy metal. These species could be selected as the greenery tree as well as purified tree in the area. Among the herbaceous plants, the accumulation ability of Cynodon dacytlon was better than others. The selection of Paulownia fortunei, Ulmus Pumila, Broussonetia papyrifera and Cynodon dacytlon in that serious pollution district was the effective restorative method.

关 键 词：重金属 污染 植物 富集能力 栖霞山矿区 

分 类 号：S731.6[农业科学—林学] X171[环境科学与工程—环境科学]