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作 者:梁静[1] 贾丽 陈清[2] LIANG Jing;JIA Li;CHEN Qing(Distance Education College,Xinjiang Radio and Television University,Urumqi 832000,Xinjiang,China;College of Resources and Environment Sciences,China Agricultural University,Beijing 100193,China)
机构地区:[1]新疆广播电视大学远程教育学院,新疆乌鲁木齐832000 [2]中国农业大学资源与环境学院,北京100193
出 处:《中国蔬菜》2020年第6期81-86,共6页China Vegetables
基 金:国家大宗蔬菜产业技术体系项目(CARS-23-B16)。
摘 要:黄淮海与环渤海设施蔬菜产区是全国蔬菜发展的六大优势产区之一。通过收集2011~2019年黄淮海与环渤海设施菜田重金属研究的文献数据,对该区域重金属污染和环境质量进行了统计分析。结果表明,黄淮海与环渤海设施蔬菜产区土壤重金属Cu、Zn、Cr、Ni、Pb、Cd、As和Hg的平均含量均低于温室蔬菜产地环境质量评价标准限量值。与各个省市土壤背景值相比,土壤出现了明显的Cu、Zn、Cd和Hg累积,Cr和As均没有出现累积。8种重金属元素单项污染指数范围在0.30~0.80,排序依次为:Cd>Pb>Hg=Ni>Zn>Cu>As>Cr,仅Cd处于警戒等级,其余重金属元素均处于清洁等级。8种重金属综合污染指数平均值为0.75,表明该区域重金属污染处于警戒水平,需采取相应的污染防控措施。Huang-huai-hai and Bohai Rim protected vegetable region is one of the 6 advantage regions for vegetable development in China.By collecting document database from 2011-2019 on studying heavy metals in protected vegetable fields at Huang-huai-hai and Bohai Rim region,this paper carried out statistic analysis on heavy metals pollution and environment quality of this region.The results showed that the soil heavy mental contents of Cu,Zn,Cr,Ni,Pb,Cd,As and Hg in protected vegetable fields at Huang-huai-hai and Bohai Rim region were all lower than the standard limit value issued by environmental quality evaluation made in greenhouse vegetables production region(HJ/T333—2006).Compared with soil background value of each province,there existed remarkable heavy metal Cu,Zn,Cd and Hg accumulation.Cr and As did not appear any accumulation in this region.The scope of single pollution index of 8 heavy metals was between 0.30 and 0.80.The order was Cd>Pb>Hg=Ni>Zn>Cu>As>Cr.Only Cd was on the warning grade.The rest heavy metals were all at the clean grade.The average comprehensive pollution index was 0.75,indicating that heavy metal pollution for this region was at the alert level.Measures for preventing and controlling heavy mental pollution should be adopted.
关 键 词:设施蔬菜 黄淮海与环渤海地区 土壤重金属 环境质量评价
分 类 号:X82[环境科学与工程—环境工程]
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