间作对伴矿景天与油菜修复镉污染土壤的影响  

Effect of intercropping on remediation of cadmium contaminated soil by Sedum plumbizincicola and Brassica napus

作　　者：游少鸿[1,2,3] 徐瑜 赵阳 杨佳节 刘杰[1,2] 赵婕 陈喆[1,2,3,5] YOU Shaohong;XU Yu;ZHAO Yang;YANG Jiajie;LIU Jie;ZHAO Jie;CHEN Zhe(College of Environment Science and Engineering,Guilin University of Technology,Guilin 541006,China;Science and Education Combination Technology Innovation Base of Guangxi Key Laboratory of Environmental Pollution Control Theory and Technology,Guilin University of Technology,Guilin 541006,China;Technical Innovation Center of Mine Geological Environment Restoration Engineering in Southern Stony Hill Area,Ministry of Natural Resources,Nanning 530031,China;Key Laboratory of Soil Environment and Pollution Remediation,CAS(Nanjing Institute of Soil Science),Nanjing 210008,China;Guangxi Key Laboratory of Ecology of Rare and Endangered Species and Enviromental Protection,Ministry of Education(Guangxi Normal Unirersity),Guilin 541006,China)

机构地区：[1]桂林理工大学环境科学与工程学院,广西桂林541006 [2]桂林理工大学广西环境污染控制理论与技术重点实验室科教结合科技创新基地,广西桂林541006 [3]自然资源部南方石山地区矿山地质环境修复工程技术创新中心,南宁530031 [4]中国科学院土壤环境与污染修复重点实验室(南京土壤研究所),南京210008 [5]珍稀濒危动植物生态与环境保护教育部重点实验室(广西师范大学),广西桂林541006

出　　处：《桂林理工大学学报》2023年第2期296-302,共7页Journal of Guilin University of Technology

基　　金：国家重点研发计划项目(2018YFD0800700);国家自然科学基金项目(41807136,51868010);广西自然科学基金项目(2019GXNSFBA245083,2018GXNSFAA138202);桂林市科学研究与技术开发计划课题(20190219-3);广西“八桂学者”创新团队项目(2016A10);广西高校中青年教师科研基础能力提升项目(2021ky0275);广西研究生教育创新计划项目(YCBZ2021066)。

摘　　要：为探究在镉污染土壤上伴矿景天与油菜(中双11号)间作种植对二者生长和镉吸收的影响。通过田间小区试验,共设置3个处理:伴矿景天与油菜间作、伴矿景天单作、油菜单作。结果表明,伴矿景天与油菜间作处理可提高伴矿景天和油菜对镉的提取能力,间作处理时伴矿景天的镉提取量为2.76μg/株,较伴矿景天单作处理高出7%,油菜的镉提取量为1.32μg/株,较油菜单作处理高出16%;修复后收获的菜籽油和油饼检出镉含量均符合标准,且间作处理的油饼检出镉含量较单作处理降低了41.7%。因此,伴矿景天和油菜间作种植技术可在修复土壤的同时实现农作物的安全生产,是一种有前景的植物间作修复技术。In order to explore the effects of intercropping of Sedum plumbizincicola and Brassica napus(Zhongshuang 11)on their growth and cadmium uptake in cadmium contaminated soil.Field plot experiment were designed for 3 treatments,including intercropping of Sedum plumbizincicola and Brassica napus,monoculture Sedum plumbizincicola,monoculture Brassica napus.The results showed that compared with monoculture systems,the intercropping system could improve the cadmium extraction ability of dual plants.Cadmium extraction amount of Sedum plumbizincicola was 2.76μg per plant in intercropping system,which was 7%higher than that in monoculture Sedum plumbizincicola system.Cadmium extraction amount of Brassica napus was 1.32μg per plant in intercropping system,which was 16%higher than that in monoculture Brassica napus system.The cadmium contents of rapeseed oil and oil cake reached the corresponding safety standards after intercropping remediation.Compared with the monoculture Brassica napus system,the cadmium concentration of oil cake in intercropping system decreased by 41.7%.Therefore,the intercropping of Sedum plumbizincicola and Brassica napus is a promising phytoremediation technology which can not only realize the safe production of the oil crop,but also purify the contaminated soil.

关 键 词：超积累植物 土壤修复 镉 间作 伴矿景天 油菜 

分 类 号：X53[环境科学与工程—环境工程]