超积累东南景天与油料作物轮间作修复农田镉铅污染的技术模式研究  

Study on the remediation patterns of rotation or intercropping between hyperaccumulator Sedum alfredii and oil crops in cadmium and lead co-contaminated agricultural soils

作　　者：童文彬 曹雪蕊 江建锋 王小子 刘国群 宋建忠 AFSHEEN Zehra 杨肖娥[2] TONG Wenbin;CAO Xuerui;JIANG Jianfeng;WANG Xiaozi;LIU Guoqun;SONG Jianzhong;AFSHEEN Zehra;YANG Xiao’e(Bureau of Agriculture and Rural Affairs in Qujiang District,Quzhou 324000,Zhejiang,China;Ministry of Education Key Laboratory of Environmental Remediation and Ecological Health,College of Environmental and Resource Sciences,Zhejiang University,Hangzhou 310058,China;Bureau of Agriculture and Rural Affairs in Kecheng District,Quzhou 324000,Zhejiang,China;Agricultural Public Service Center in Lianhua Town of Qujiang District,Quzhou 324000,Zhejiang,China)

机构地区：[1]衢州市衢江区农业农村局,浙江衢州324000 [2]浙江大学环境与资源学院,环境修复与生态健康教育部重点实验室,杭州310058 [3]衢州市柯城区农业农村局,浙江衢州324000 [4]衢州市衢江区莲花镇农业公共服务中心,浙江衢州324000

出　　处：《浙江大学学报（农业与生命科学版）》2021年第2期212-222,共11页Journal of Zhejiang University:Agriculture and Life Sciences

基　　金：浙江省衢州市衢江区农业农村局土壤重金属污染治理技术研究与示范采购项目(QZZFCG2016034);浙江省衢州市柯城区农业农村局农用地土壤污染防治项目(HZBC-TRFZ-20191209);浙江省衢州市柯城区土壤重金属污染治理示范采购项目(ZJXSJ2018091)。

摘　　要：通过有机物料和特异内生菌强化等措施,比较了东南景天单作、东南景天-油菜间作、东南景天/油葵轮作在田间条件下对土壤中镉(Cd)和铅(Pb)的修复效果。结果表明:与所有处理组相比,东南景天/油葵轮作强化修复模式的提取量最高,经过一轮修复,从土壤中提取出了394.8 g/hm2 Cd和110.2 g/hm2 Pb,比其他模式高3.1%~101.0%和22.0%~139.0%。且在该模式下,土壤中总Cd含量下降了26.6%,有效态Cd含量下降了31.1%;总Pb含量下降了4.3%,有效态Pb含量下降了20.9%。从机械化耕作等因素考虑,东南景天/油葵轮作操作简便,更适宜实际的田间应用。The effects of Sedum alfredii monoculture,intercropping of S.alfredii and oilseed rape,and rotation of S.alfredii and sunflower on cadmium(Cd)and lead(Pb)remediation efficiency in field conditions were compared by combining organic materials and specific endophyte.After one round of remediation,the results showed that the extraction amount of Cd and Pb was the highest under the S.alfredii and sunflower rotation intensified remediation mode.Under the remediation mode,394.8 g/hm2 Cd and 110.2 g/hm2 Pb were extracted from the contaminated soils,which were 3.1%-101.0%and 22.0%-139.0%higher than the other treatments,respectively.Moreover,the contents of total Cd and available Cd in the contaminated soils decreased by 26.6%and 31.1%,respectively;the contents of total Pb and available Pb in the contaminated soils decreased by 4.3%and 20.9%,respectively.Considering the factors such as mechanized farming,rotation of S.alfredii and sunflower is easy to operate and more suitable for practical field application.

关 键 词：重金属 植物提取 东南景天 间作 轮作 强化修复 

分 类 号：X53[环境科学与工程—环境工程]