安菜生长土壤中重金属的环境质量及来源  

Environmental quality and provenance of heavy metals in soils for Ancai plant

作　　者：王嘉怡 陈健[1,2,3] 李洋 李秀丽[1,2,3] 齐啸威 张鑫迪 WANG Jiayi;CHEN Jian;LI Yang;LI Xiuli;QI Xiaowei;ZHANG Xindi(School of Earth and Environment,Anhui University of Science and Technology,Huainan 232001,China;Key Laboratory of Mine Geological Disaster Prevention of Anhui Province,Huainan 232001,China;National Key Laboratory of Deep Coal Safety Mining and Environmental Protection,Huainan 232001,China)

机构地区：[1]安徽理工大学地球与环境学院,安徽淮南232001 [2]矿山地质灾害防治安徽省重点实验室,安徽淮南232001 [3]深部煤炭安全开采与环境保护全国重点实验室,安徽淮南232001

出　　处：《合肥工业大学学报(自然科学版)》2025年第4期495-502,507,共9页Journal of Hefei University of Technology:Natural Science

基　　金：国家自然科学基金资助项目(42372189);安徽省自然科学基金资助项目(1908085J14);矿山地质灾害防治安徽省重点实验室开放基金资助项目(2022-MGDP-05)。

摘　　要：安徽省舒城县庐镇乡安菜村出露有秦岭—大别造山带超高压变质岩榴辉岩,并产出特色农产品安菜,为查明安菜生长区土壤中重金属的环境质量及来源,揭示安菜生长土壤的独特性,文章在安菜村系统采集了岩石、土壤和安菜样品,测定Ni、Cu、Zn、As、Hg和Pb等6种重金属的质量比。结果表明,研究区安菜生长土壤中6种重金属的质量比较低,均未超过相关环境质量标准值,区内天然土壤无重金属污染的风险。安菜中Cu和Zn的质量比较高,而Ni、As、Hg和Pb的质量比较低,但土壤和母岩中这4种元素的质量比却较高,表明安菜对Ni、As、Hg和Pb等重金属的生物富集作用较小。百丈崖土壤和岩石均富集Zn,棋盘石山岩石富集Pb,土壤富集Ni、Zn、Hg和Pb,土壤和岩石样品中重金属的质量比具有一致的变化趋势,表明成土母岩是该区土壤中重金属质量比的决定因素。此外,土壤中Cu、As和Hg的质量比均高于成土母岩中的,Cu、As和Hg在成土过程中有一定的富集趋势。The Ancai village,located in Luzhen Town of Shucheng County in Anhui Province,is famous for the outcrop of eclogite,an ultra-high pressure metamorphic rock in the Qinling-Dabie orogenic belt,and the production of Ancai,a special agricultural plant.To investigate the environmental quality and possible provenances of heavy metals in the uncultivated soils for the wild Ancai growing,and to unveil the unique geochemical features of the soils,a series of rocks,residual soils,and Ancai plants were collected and analyzed.The concentrations of Ni,Cu,Zn,As,Hg,and Pb were determined by ICP-MS and AFS.Results showed that the concentrations of six heavy metals in the uncultivated soils were low and not higher than the thresholds of relevant environmental quality standards.The uncultivated soils did not have any risks of heavy metal pollution.The Ancai plants were of high Cu and Zn contents and low Ni,As,Hg,and Pb contents.The soils and parent rocks showed an opposite feature,with high contents of Ni,As,Hg,and Pb,indicating that the Ancai plants did not biologically enrich these heavy metals.Zinc was enriched in the soil and rock samples from the Baizhangya Hill.Lead was enriched in rock samples from the Qipanshi Hill;in addition,Ni,Zn,Hg,and Pb were enriched in its residual soil.The heavy metals in soil and rock samples presented a similar distribution pattern,suggesting that it was the parent rocks underlying these uncultivated soil layers that dominated heavy metals in the overlying soils.The concentrations of Cu,As,and Hg in the soils,however,was higher than those in the parent rocks.The contents of Cu,As,and Hg in the soils might be elevated during the soil formation.

关 键 词：重金属 环境质量评价 来源解析 土壤 安菜 舒城县 

分 类 号：X142[环境科学与工程—环境科学]