基于GIS的土壤重金属污染模拟扩散研究及应用

土壤污染是全球三大环境污染之一,目前、重金属污染是造成我国土壤污染主要原因之一,土壤中的重金属元素会严重危害相关农作物的生长,且传统的土壤重金属污染研究和污染模型的建立大部分是通过单一的数据表格来对结果进行分析说明,不够直观和简明。因此,基于地理信息系统十分强大的空间数据管理及空间分析能力,结合相关算法,构建出土壤中重金属污染扩散迁移模型,并将WebGIS技术和土壤重金属污染扩散迁移起来,对土壤重金属污染数据用GIS技术进行分析和展示。研究表明:改进之后的模型及程序与传统模型及程序相比,数据的展示更加直观,对数据展示更加多维,可以辅助政府环保相关部门对土壤中的重金属污染制订更加精准的治理方案。

Research and Application on Soil Heavy Metal Pollution Simulated Diffusion Based on GIS

Soil is the material basis for human survival.At the same time,soil pollution is one of the three major environmental pollutions in the world.At present,the overall situation of soil pollution in our country is very severe,especially soil heavy metal pollution is showing an increasingly serious trend,which seriously endangers the growth of crops and harms human health.Moreover,the traditional soil heavy metal pollution research and the establishment of pollution models analyze the results mostly through a single data table,which is not intuitive and concise.Therefore,based on the powerful spatial data management and spatial analysis capabilities of GIS,combined with related algorithms,a model of the diffusion and migration of heavy metal pollution in the soil is constructed,and WebGIS technology and the soil heavy metal pollution model are combined to analyze the soil heavy metal pollution data with GIS technology.Research shows that the improved model and program are more intuitive and more multi-dimensional than the traditional model and program,which can assist the environmental protection department in formulating a more scientific and reasonable soil heavy metal pollution prevention plan.