GIS支持下山东省土地自然质量评价研究

GIS-Based soil resources evaluation in Shandong Province

在地理信息系统 (GIS)的支持下 ,结合 Visual Foxpro5 .0及农业实用多元分析程序包 (APMP)对山东省土地自然质量进行了评价。以 GIS叠加分析模型 ,通过图形与其属性库的对应统一 ,利用 APMP程序包 ,以回归分析、主成分分析、聚类分析等定量模型 ,实现评价单元的划分、参评因素的筛选及权重的确定 ,基本实现了土地评价的自动化流程 。

Based on the technique of Geographic Information System (GIS),with the help of Visual Foxpro 5.0 and APMP,soil resources in Shandong province are evaluated.Based on GIS overlay model and the correspondence between map and its attribute database,using quantitative models of APMP of Regression Analysis and Factor Analysis and Cluster Analysis,the evaluation units,identification factors and their weight are realized.On the whole,it has realized the automatic land evaluation flow and met the need of land information system.