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Heavy metal pollution of city surface soil analysis model

机译:城市重金属污染表层土壤分析模型

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摘要

As the city population capacity and the construction scale unceasing expansion,City soil heavy metal pollution problems have become increasingly prominent.City hazards that it causes involve in all aspects of national economy,so city of heavy metal pollution analysis and assessment is to solve urgently.This paper uses a city provides 8 kinds of heavy metal elements(As,Cd,Cr,Cu,Hg,Ni,Pb,Zn) under different regions of the concentration content data.We construct quadratic trend surface model z=b0+b1x2+b2y2+b3xy+b4x+b5y based on element concentration,by spatial distribution and variability research.We use the model to simulate the 8 heavy metal elements in the city's spatial distribution and analysis city pollution degree of heavy metal in different regions based on single factor pollution index method; we construct factor analysis model according to the original data,so that approach the main reason of city heavy metal pollution.
机译:随着城市人口容量和建筑规模的不断扩大,城市土壤重金属污染问题日益突出。城市引起的灾害危害涉及国民经济的各个方面,因此,城市重金属污染分析与评估迫在眉睫。本文利用某城市提供了8种重金属元素(As,Cd,Cr,Cu,Hg,Ni,Pb,Zn)在不同浓度区域数据下的浓度。我们构建了二次趋势面模型z = b0 + b1x2 +基于元素浓度的b2y2 + b3xy + b4x + b5y,通过空间分布和变异性研究。使用该模型模拟城市空间分布中的8种重金属元素,并基于单因素分析不同地区的重金属城市污染程度污染指数法;我们根据原始数据构建因子分析模型,以解决城市重金属污染的主要原因。

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