四川省农村空气自动站布点密度分析

建立起农村地区空气自动站布点分布的综合指标评价体系。以城市污染扩散效应、土地利用、人口和地面粗糙度4类指标作为评价因子,选取5个主要属性指标参数,采用指标属性值与整个研究区域此属性加权平均值组合频率的方式量化属性值,并利用层次分析法得出5个属性指标的权值分布,最终在arcgis平台下利用格栅计算工具得出综合量化值,从而直观描绘出农村空气自动站布点密度空间分布图。本研究以四川省遂宁地区为对象,分析出了综合影响指标分布情况,并初步确定了遂宁地区农村空气自动站布点的代表性区域划分和布置点位个数。

Analysis of Stationing Density of Automatic Air Station in Rural Sichuan

An integrated index evaluation system was established for stationing of rural automatic air stations. By means of selecting four kinds of indexes as evaluation factors including the diffusion effect of urban pollution, land use, population and surface roughness and selecting five index parameters of main attribute, and the attribute values were quantified with combination frequency of the attribute values and weighted average of the whole studying area, then analytic hierarchy process （AHP） was using to get the weight value distribution of the five attribute indexes. Eventually on the arcgis platform, grid computing was used to calculate the integrated quantized values. Sequentially the spatial distribution map of stationing density for rural automatic air stations was intuitive painted. In this study, the model was verified in Suining District of Sichuan Province, where the distribution of the integrated impact indexes was analyzed and the representative areas partition and the number of stationing points of rural automatic air station in Suining were preliminarily determined.