【摘要】 中国地质环境图系数据库,是中国首套统一结构、统一格式、统一编码的涵盖地质环境、地质灾害、地下水、矿山地质环境、地质遗迹5个专业领域的全国性数据库。该套数据库是基于1:1 000 000数据源的地理信息库,以分省1:500 000环境地质调查、县市地质灾害调查、重点地区1:50 000地质灾害调查、新一轮地下水资源评价、第二轮全国矿山地质环境摸底调查和矿产资源集中开采区矿山地质环境调查、首轮地质遗迹调查等数据为基础,集成近20年来水工环地质调查监测数据和最新综合研究成果,根据统一的建库技术要求建立而成。该套数据库具有统一的系统库(符号库、颜色库、图案库、线型库),属性按照统一的编码规则和要求建立,图件按照统一的图饰图例进行了规范化处理,共包含163个专业图层,图元数量共337 833个,容量约8.8 GB。该套数据库为实现成果图件的动态管理与更新、构建数字地质环境奠定了基础,可为地质环境保护管理、国土空间规划、生态修复、地质灾害防治提供详细的基础信息资料。更多还原

【Abstract】 The Database of Geological Environmental Map System of China is China’s first national database with uniform structure, format and codes, covering five professional fields,namely, geological environment, geologic hazards, groundwater, geological environment of mines and geological relics(geoheritage). Using 1:1 000 000 data sources as the geographic information base, this database is built on 1:500 000 environmental geological surveys in different provinces, county-and city-level geologic hazard surveys, 1:50 000 geologic hazard surveys in key areas, the latest groundwater resources assessment, the second national survey of the geological environment of mines and investigation of such in areas with concentrated mining, and the first survey of geological relics. According to uniform requirements, it integrated the data of hydrological, engineering and environmental geological surveys and monitoring data over the past 20 years as well as the latest related research results. It has a unified system library(symbol, color, pattern and line libraries), with attributes established according to uniform coding rules and requirements, and with maps standardized according to uniform finishing and legend. The database contains 163 professional map layers with a total number of 337 833 elements and a capacity of 8.8 GB. It lays a solid foundation for the dynamic management and updating of maps and the construction of a digital geological environment, and provides detailed fundamental information for the protection and management of China’ s geological environment, spatial planning of national territory,ecological restoration and the prevention and control of geologic disasters.更多还原