铅锌尾矿对下游区域农田污染的影响研究  

Study on the Influence of Lead-zinc Tailings on Farmland Pollution in Downstream Areas

作　　者：陈毓遒 舒红锁 洪荷芳 任典挺 王江[5] Chen Yu-qian(Taizhou Environmental Science Design and Research Institute Co.,Ltd.,Taizhou,Zhejiang 318000)

机构地区：[1]台州市环境科学设计研究院有限公司,浙江台州318000 [2]三门县林业技术推广总站,浙江三门317000 [3]台州市生态环境局临海分局,浙江临海317000 [4]三门县有害生物防治检疫站,浙江三门317000 [5]台州学院,浙江台州318000

出　　处：《农业灾害研究》2023年第8期289-291,共3页Journal of Agricultural Catastrophology

摘　　要：尾矿对周围农田重金属污染已成为一个重要的生态环境问题。本研究选择黄岩铅锌尾矿为研究对象,对尾矿植物修复效果和下游不同距离农田中土壤、植物、农产品中重金属含量进行监测并评估其潜在的影响。结果显示植物修复提高了土壤固定Cu、Cd、Pb和Zn的能力,提高了N素含量,降低了土壤酸度。随着采样区域远离尾矿,农田土壤重金属含量显著下降。土壤中动物数量随着距离增加呈现显著增加的趋势,与土壤中重金属含量呈现显著的负相关。结果表明尾矿植物修复起到了减轻污染的作用,下游地区暂时不适合农耕,离尾矿较远区域可以饲养畜禽。The heavy metal pollution of tailings to surrounding farmland had become an important ecological and environmental problem.In this study,Huangyan lead-zinc tailings were selected as the research object,and the phytoremediation effect of tailings and the content of heavy metals in soil,plants and agricultural products in farmland at different distances downstream were monitored and its potential impact was evaluated.The results showed that the restoration of Miscanthus pentaphyllum enhanced the ability of soil to fix Cu,Cd,Pb and Zn,increased the content of N,and decreased the soil acidity.With the sampling area far away from tailings,the content of heavy metals in farmland soil decreased significantly.The number of animals in soil showed a significant increase trend with the increase of distance,which was negatively correlated with the content of heavy metals in soil.The results show that the phytoremediation of tailings had played a role in reducing pollution,and the downstream area was not suitable for farming for the time being,and livestock and poultry can be raised in areas far from tailings.

关 键 词：尾矿 重金属 农田 污染影响评价 

分 类 号：X173[环境科学与工程—环境科学]