高密度人口活动下土壤元素含量及分布特征：以宿州学院为例

The Content and Distribution Characteristics of Soil Elements under High-Density Population Activities: An Example in Suzhou University

摘要: 以宿州学院教育园区为研究对象，使用硼酸垫底压片法X荧光光谱分析对该校区范围内23个土壤样品中的Mn、Hg和Zn进行了检测，进而利用数理统计、描述性统计分析、地积累指数法、内梅罗综合指数法以及土壤重金属元素空间分布特征等对检测结果进行分析。结果表明：研究区地表土壤重金属元素含量的变异系数和极差均较大，空间分布差异显著；宿州学院教育园区的地表土壤已受到不同程度的重金属污染，处于轻度污染水平，校园重金属污染问题亟需解决；地表土壤中重金属元素含量与分布特征会受到高密度人口活动的影响，不同元素所受的程度也会存在着差异，高密度人口活动对土壤重金属元素含量影响较大，一般表现为重金属元素富集。

Abstract: The education park of Suzhou University is the research object. The Mn, Hg and Zn of the 23 soil samples in the campus range were tested, using boric acid bottom pressing X fluorescence spectroscopic analysis, and the results were analyzed based on such methods as mathematical statistics, descriptive statistical analysis, ground accumulation index method, Nemero composite index method and spatial distribution characteristics of heavy metal elements in soil. The results show that the variation coefficient and polar difference of heavy metal element content in surface soil in the study area are large and the spatial distribution is significantly different, the surface soil of Cebu College Education Park has been polluted by heavy metals to varying degrees, is at the level of mild pollution, and the problem of heavy metal pollution in campus needs to be solved urgently. It is generally manifested as the abunding of heavy metal elements.