长江三角洲环境地质调查评价GIS管理系统建设初探

长江三角洲是一个人口稠密、经济高度发达的地区 ,该区地质结构复杂、环境地质条件十分脆弱 ,长期以来因过量开采地下水 ,形成大面积区域性水位降落漏斗 ,诱发了相当严重的地面沉降、地裂缝等地质灾害 ,给当地经济可持续发展带来严重威胁。本文从开展长江三角洲环境地质调查评价的现实意义出发 ,探讨了长江三角洲环境地质调查评价GIS管理系统的系统目标、开发模式以及实现步骤 ,概括介绍了系统所应具有的功能 ,为长江三角洲项目信息系统建设提出了一条可行性思路。

PRELIMINARY DESIGN OF GIS FOR ENVIRONMENTAL GEOLOGY SURVEY EVALUATION IN CHANGJIANG DELTA

The Changjiang delta is an area with dense population and high developing economy. The geological structure is very complicated and environmental geological condition is vulnerable. The extensive lowering and sinking of regionql groundwater table, the ground subsidence and the ground cracks have begun to form because of over pumping of groundwater for a long time. So the sustainable development of economy have been threatened in this area. The significance and goal of GIS management system for environmental geological survey evaluation in Changjiang delta and its development model and approach to its implementation are briefly discussed, and the functions of the system are simply introduced in this paper. A feasible thinking way for development of the GIS system in the Changjiang delta is suggested.