机助地图叠置分析及其在自然资源研究中的应用

机助地图叠置分析包括多边形叠置分析和网格叠置分析两种方法。本文论述了多边形叠置分析的原理和方法,以及多边形叠置分析软件设计的基本思想,探讨了机助地图叠置分析在自然资源研究中的应用领域,并以实例说明了机助地图叠置分析应用于实践的方法和过程。机助地图叠置分析可应用于自然资源数据的统计计算、自然资源的分类和评价,以及动态、变化分析等方面。它对于自然资源尤其是农业自然资源的研究有着一定的意义。

COMPUTER-AIDED MAP OVERLAY ANALYSIS AND ITS APPLICATIONS TO THE STUDIES OF NATURAL RESOURCES

Computer-aided map overlay analysis is an efficient means of multi-element analysis. It nay be used in the synthetic qualitative and quantitative analysis of varied elements of environment and resources. It includes polygon overlay analysis and grid overlay analysis. The paper deals with the principle and method of polygon overlay analysis as well as the basic thoughto of its programming. Its application fields in the studies of natural resources are examined. A practical example is given to illustrate the method and course of using it. Computer-aided map overlay analysis may be applied to statistical calculation, classification, assessment of natural resources, etc. It is of practical significance to the studies of natural resources, especially agricultural land resources.