建立沙漠化环境监测信息系统图形数据库专题系列地图的编辑与制图

THE EDITING AND MAPPING OF SERIES THEMATIC MAPS IN THE INFORMATION SYSTEM FOR ENVIRONMENTAL MONITORING OF DESERTIFICAION

沙漠化专题系列地图是沙漠化环境信息系统图形数据库的主要信息内容，目的在于为系统进行空间分析提供数据。沙漠化系列图的编制，因制图工具是具有图形编辑软件的计算机系统，地图载体已改变为磁性记录媒体，制图程序与常规方法差别甚大。本文结合机助制图特点，介绍了制图编辑中的有关问题，主要内容包括：（１）用于沙漠化环境监测信息系统专题地图的设计；（２）专题系列地图的制图分类；（３）图形数据库中专题系列图的统一协调；（４）系统中沙漠化专题系列图的编辑特点；（５）沙漠化环境信息系统中系列图件的时间序列。

The Scties thematic maps of desertification are the main data sourcein the InformationSystem for Environmental Monitoring of Desertification,and provide the fundamental bases for thespecial munipulatium and analysis. According to the used computer aided mapping software. Someproblems of editing and mapping of thematic maps in the system has been discussed in this papermainly including as following:( 1 )Disigning the thematic maps used in the information svstem fordesentification environmental monitoring:(2)Mapping classification of the thematic maps ; ( 3 )Unification and coordination of the series thematic maps in the system : ( 4 ) Editing features of theseries gyematic maps of desertification ; (5) time sequemes of the map in desertification environmentalmonitoring.