金矿区某些植物中Au、Ag、Cu元素的富集及其与土壤的关系

THE BIOLOGICAL ACCUMULATION OF Au, Ag AND Cu IN CERTAIN PLANTS AND THEIR CONCENTRATION IN SOILS IN GOLD OREFIELD

摘要: 研究Au、Ag、Cu元素在招远金矿区8种植物叶中的富集系数（BAC）后发现，元素Cu在泡桐叶中的富集系数较大，Ag在麻栎叶中富集系数较大，而Au在8种植物叶中的富集系数差异较小.回归分析表明，元素Ag和Au在赤松叶与土壤中的相关性良好，均遵守植物选择性吸收和质量作用定律.可用测量植物叶中的Au及伴生元素含量的方法作为勘探金矿的辅助手段.

Abstract: The biological accumulation coefficient(BAC)of Au, Ag and Cu in eight sorts of plant leaves was investigated in Zhaoyuan gold field in Shandong Province. The result shows that the values of CuBAC in Paulownia leaves and AgBAC in Quercus acutissima carr leaves are high, but AuBAC presents little difference in the eight sorts of leaves. Regression analysis indicates that the concentration of Au and Ag in Spruce leaf is closely correlated to that in soils, in accord with the laws of plant selective absorption and mass action. The measurement of concentration of Au and coexisting elements in plant leaves is an auxiliary method in gold deposit exploring.