【摘要】 采集贵州铜仁石阡苔茶3个重点产茶区的土壤和茶叶样品,用电感耦合等离子体质谱仪(ICP-MS)测定样品中的砷、镉、铬、铜、铅、汞、镍、锌等重金属含量,根据当前相关标准,采用单因子污染指数法、Nemerow综合污染指数法进行分析评价。结果表明:茶园土壤中8种重金属含量均未超标,未受重金属污染;相应土壤生长的茶叶未受到重金属污染,符合国家绿色、有机、无公害的标准,研究区具有发展无公害农产品和绿色食品茶叶的土壤环境条件。更多还原

【Abstract】 Soil and tea samples were collected from three key tea producing areas of Shiqian tea in Tongren,Guizhou Province.The contents of arsenic, cadmium, chrom ium,copper,lead,mercury,nickel,zinc and other heavy metals in the samples were determined by inductively coupled plasma mass spectrometry(ICP-MS).The results showed that the contents of eight heavy metals in tea garden soil were not over the standard and were not polluted by heavy metals;meanwhile,the tea growing in the corresponding soil was not polluted by heavy metals,which met the national green,organic and pollution-free standards.The study area has the soil environmental conditions for the development of pollution-free agricultural products and green food tea.更多还原