鄱阳湖及周边经济区农业地球化学环境评价

Agricultural geochemical environmental evaluation for Poyang Lake and its surrounding economic districts

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 information of 1：250,000 scale multi-purpose geochemical survey of Poyang Lake and its surrounding areas, this paper discussed in detail the distribution characteristics of 16 nutrient elements including C,H,O,N,P,K,Ca,Mg,S,Cu,Zn,Fe,Mn,B,Mo and Cl, which the plant requires. The comprehensive evaluation of soil environmental quality respectively for innoxious rice producing area, innoxious vegetable producing area and green food producing area was made by using of the method of Nemero Index. On this basis, the comprehensive evaluation of eco-geochemical environmental quality of surface soils in Poyang Lake and its surrounding economic districts was proposed.