乡镇土地利用规划专题地图概括技术探讨

摘要

本文主要从数量特征和质量特征方面探讨第二次土地调查基础数据库中专题地图的概括方法,以ArcGIS9.3为平台,结合其缩编工具,进行土地规划专题地图概括,以达到各乡镇在专题地图中的概括批处理,包括对土地利用要素进行简化或夸大,轮廓的平滑处理,以及地图符号的选取等。将该区域的土地利用的规律性和典型特征表现出来,作为规划修编的辅助资源。%The study focused on the quantitative and qualitative characteristics of the second land survey database to discuss the thematic map generalization method. It based on ArcGIS 9.3 technology, especially the downsizing of tools, to manage the generalization of land planning thematic map. Through the batch processing it might achieve purpose as： obtained the generalization of villages and towns, simplified or exaggerated the land use elements, smoothed the contour and selected map symbols, ect. The results of study showed that the method of map generalization can greatly express the rules and typical characteristics of land use and provide resources to help land Planning and modification.