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研究表明，紫云英吸收的铜主要累积在根部，其分布规律是根＞叶＞茎。随着土壤铜浓度增加，根细胞结构变化明显，当投加６０ｍｇｋｇ－１Ｃｕ时，紫云英根细胞已受到较重的破坏
Studies have shown that the absorption of astragalus mainly in the root of copper accumulation, the distribution of the root> leaf> stem. With the increase of copper concentration in soil, the root cell structure changed obviously. When the dosage of 60mgkg-1Cu, the root cells of Astragalus sinicus have been severely damaged