通过微波消解-电感耦合等离子体质谱法探讨富硒茶园土壤-茶树砷空间分布及迁移特征。结果表明样区平均土壤砷（As）含量大小为 No.4﹥No.2﹥No.1﹥No.3，茶园土壤As含量最高值为3.3337 mg/kg，符合土壤环境质量标准；茶树体内As含量从高到低分布次序为须根﹥主根≈主茎﹥老叶﹥茶叶；茶树体对土壤As富集系数为须根﹥主根﹥主茎≈老叶﹥侧茎﹥新叶，茶树受砷污染时，其根部对阻止砷向上迁移具有缓冲及屏障作用；茶树体迁移能力主茎≈老叶﹥侧茎﹥新叶，主茎和老叶迁移能力较强。茶叶砷含量范围为0.0448~0.106 mg/kg，均低于限定值。砷含量每日摄入量占ADI的百分比为0.09%~0.25%，饮用茶汤健康风险较低。

The spatial distribution and migration characteristics of As (arsenic) in soil–tea tree of selenium-enriched tea garden were investigated by microwave digestion-inductively coupled plasma mass spectrometry. The results showed that the average soil As content in the sample area was No.4 > No.2 > No.1 > No.3, and the highest value of As content in tea garden soil was 3.3337 mg/kg, which met the soil environmental quality standard. The distribution order of As content in tea plant from high to low was fibrous root > main root ≈ main stem > old leaf > tea leaf; the As enrichment coefficient of tea plant to soil was fibrous root > main root > main stem ≈ old leaf > lateral stem > new leaf. When the tea plant was polluted by arsenic, its root had buffer and barrier effect on preventing arsenic from migrating upward. The migration ability of main stem ≈ old leaf > lateral stem > new leaf, which means that the migration ability of main stem and old leaf was stronger. The As content of tea ranged from 0.0448 to 0.106 mg/kg, which was lower than the limit value. The daily intake of As content accounted for 0.09%~0.25% of ADI, so the health risk of drinking tea was low.