基于GIS技术的城市大气环境质量评价——以淮南市为例

以淮南市为例 ,探讨了基于地理信息系统GIS技术进行城市大气环境质量评价的分析方法。利用GIS的空间数据管理、分析和图形显示、输出功能 ,对大气环境进行多因素复合分析 ,建立了基于“变权”思想的大气环境质量综合评价的污染指数模型和大气环境质量等级标准 ,并以图表的形式输出了评价结果。结果表明利用GIS技术进行城市大气环境研究具有传统方法无法比拟的优势 ,具有广阔的应用前景 ;所建立的大气环境评价模型和等级划分标准简单、客观、合理 ,具有实际应用意义。

Evaluation of Urban Atmosphere Quality Aided by GIS-A Case Study in Huainan City

This paper described the GIS aided evaluation of air quality in Huainan City, Anhui Province. Procedures and methods of the evaluation were briefly introduced, including the GIS functions of spatial data analysis/management and graphics display. By multi factors compound analysis and on the basis of the "variational weight" principle, a model of composite pollution index and evaluation criteria were established. Results of evaluation were output in graphics. Work done in Huainan shows that GIS aided evaluation of air quality is more efficient and advanced than the traditional methods. The evaluation model and classification of criteria, which have been established, are simple in use and objective in achieving results.