利用开源软件开发基于WebGIS的县级林业空间信息共享系统

定期的森林资源调查和遥感技术、全球定位系统技术等在林业中的广泛应用,积累了大量的林业空间数据.充分利用这些宝贵的空间数据信息,为国家的经济发展和生态建设服务已经成为当务之急.结合林业生产经营管理的需求,一些部门、单位基于资金和技术等情况采用了不同的地理信息系统(GIS)软件,开发了各自的单机版森林资源管理信息系统.

WebGIS Based Spatial Forest Information System on County Level Using Open Source Software

With fixed periods forest resources inventories and wide application of remote sensing,GPS technologies in forestry, large amount of spatial forest data have been collected in various forest resources bureaus. It is an urgent task to fully use these valuable spatial data to serve the national economic development and ecological construction. The expensive commercial geospatial software constrained small and middle-size companies to publish their spatial forest data. Fast development of open source software in the last decades provides an alternative solution to the commercial software. In the paper we developed a WebGIS based spatial forest information sharing system on county level with open source software FireFox, Apache Http Server, UMN MapServer and PostGIS/PostgreSQL. The system adopted four-tier architecture: client, Web server, application server and database server. The users can render the overlay information of spatial forest data layers, execute zooming in, zooming out, panning, and information querying functions. The system can provide most functions that commercial WebGIS has. It is suitable for small and middle-size companies which have limited budgets for developing WebGIS based spatial information sharing system to publish and share spatial information.