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文章以《江西省鄱阳湖及周边经济区1∶25万多目标地球化学调查》资料为基础,详细论述了植物所需的C、H、O、N、P、K、Ca、Mg、S、Cu、Zn、Fe、Mn、B、Mo、Cl共16种营养元素的分布特征。利用8843件表层土壤样品中Cd、Hg、As、Pb、Cr等重金属元素含量及其土壤pH值,采用内梅罗指数法对区内无公害水稻产地土壤环境质量、无公害蔬菜产地土壤环境质量以及绿色食品产地土壤环境质量进行综合评价。在此基础上,对鄱阳湖及周边经济区表层土壤生态地球化学环境质量进行了综合评价。
Based on the data of 1: 2.5 million target geochemical survey in Poyang Lake and its surrounding areas in Jiangxi Province, the paper discusses in detail the contents of C, H, O, N, P, K, Ca, Mg, Distribution Characteristics of 16 Nutrient Elements Cu, Zn, Fe, Mn, B, Mo and Cl. The content of soil heavy metals, such as Cd, Hg, As, Pb and Cr, and the soil pH value of 8843 surface soils samples were determined by Nemerow method. The results showed that the soil environmental quality of non-polluted rice producing areas, As well as the comprehensive evaluation of soil environmental quality of green food producing areas. On this basis, the eco-geochemical environmental quality of the surface soil in Poyang Lake and the surrounding economic areas were comprehensively evaluated.