摘要
For technical and other reasons there is a dilemma that data providers cannot find an appropriate way to redistribute spatial forest data and data users who need spatial data cannot access and integrate available forest resources information. To overcome this dilemma, this paper proposed a spatial forest information system based on Web service using an open source software approach. With Web service based architecture, the system can enable interoperability, integrate Web services from other application servers, reuse codes, and shorten the development time and cost. At the same time, it is possible to extend the local system to a regional or national spatial forest information system. The growth of Open Source Software (OSS) provides an alternative choice to proprietary software for operating systems, web servers, Web-based GIS applications and database management systems. Using open source software to develop spatial forest information systems can greatly reduce the cost while providing high performance and sharing spatial forest information. We chose open source software to build a prototype system for Xixia County, Henan Province, China. By integrating OSS packages Deegree and UMN MapServer which are compliant to the OGC open specifications, the prototype system enables users to access spatial forest information and travelling information of Xixia County which come from two different data servers via a standard Web browser and promotes spatial forest information sharing.
由于技术等原因,林业空间信息处于一种困境:数据提供方找不到合适的途径发布数据;数据需求方不能访问、集成已有的林业空间信息。为促进林业空间信息共享,本文提出利用开源软件开发基于Web服务的林业空间信息系统。在Web服务的框架下,系统支持互操作,可以集成来自其他应用服务器的Web服务,并可扩展为区域或国家林业空间数据基础设施的一部分。开源软件的发展,在操作系统、Web服务器、WebGIS和数据库管理系统等方面为用户提供了可用的开源软件。利用开源软件开发林业空间信息系统,在促进信息共享的同时,将节省软件购买及开发成本。本文选用遵循OGC开放规范的开源软件包Deegree和UMN MapServer开发了河南省西峡县林业空间信息系统原型,用户可以通过标准的Web浏览器访问来自于不同数据服务器的林业空间信息和旅游线路信息,促进了林业空间信息的共享。图6参11。
基金
the National 863 program (2003AA131020-06)
the programme Young scientists from extra-European countries to Lower Saxony.