贵州省土壤信息系统(GSIS)空间数据库的设计与建立

DESIGNING AND APPLICATION OF THE SPATIAL DATABASE OF GUIZHOU SOIL INFORMATION SYSTEM(GSIS)

本文讨论了在PAMAPGIS(V4 .2 )支持下 ,贵州省土壤信息系统 (GSIS)空间数据库的设计、构建、功能以及应用。该数据库主要由三部分组成 :1 )基础地理信息。如数字高程模型 (DEM)、行政区划、交通网络等 ;2 )GSIS专题信息。包括土壤类型、理化性质、土地利用、农业气象等 ;3 )统计数据。主要有社会经济概况及历史灾害等。GSIS空间数据库可以提供空间及属性数据查询、不同数据格式间的相互转换、土地资源的快速准确分析、土地资源管理和评价以及土壤侵蚀调查。GSIS空间数据库的建立有望在贵州省国土规划与整治、农业的持续发展和生态环境监测等方面发挥较为积极的作用。

The general designing and building up of the Spatial Database of GSIS which was supported by PAMAP GISTM 4.2 were discussed in this paper. The database was made up of the following three parts: 1) the Basic Geographic Information such as DEM, administrative area, geographic networks (for example, roads and rivers), etc.; 2) the GSIS Thematic Information including soil type, nutrient content, landuse, agricultural meteorology and so on; 3) the Statistic Information involving natural disaster, and social economic data. The Spatial Database of GSIS can provide the functionality for querying the spatial data and its associated attributes, conversion between the different data formats, fast and accurate analysis of soil resources, land assessment and management application, and soil erosion risk mapping in addition. Clearly, the establishment of GSIS Spatial Database is expected to play an important role in territorial planning, agricultural sustainable development, spatial assessment of ecological environment and so on.\;