基于WebGIS信息整合与利用的林业电子政务

林业电子政务要向社会公众提供专业服务。面向服务的架构和万维网地理信息系统是处理林业电子政务信息资源整合和利用的重要技术工具。文章以林业电子政务中森林火点检测的应用流程为例展示上述技术的运用方法。工作流程可以利用分布式的遥感数据、矢量辅助数据资源、森林火点检测算法和万维网地图发布服务,通过一个网格的基础架构把这些资源集成起来形成林业专业应用。文章展示的试验床用Web服务技术封装了专业算法。网格中间件采用的是自主研制的SIRGE,调度资源的工作流中间件采用的是自主研制的SIGApp,它们的专长是可以处理空间数据。用于通过这个试验床可以访问基于不同来源数据和服务得到的森林火点信息,为林业电子政务服务。

Based on WebGIS Integration and Utilization of Information Resources in Forestry E-Government

Forestry E-Government must provide public administration services to the public.SOA and WebGIS technology can be useful tools to deal with integration and utilization of information resources in forestry E-Government.The goal of the research is to study a new kind of forest fire hotspot detection workflow for Forestry E-Government and put this application on a SOA like system.The investigated workflow can make use of a great amount of data and auxiliary vector data physically dispersed over different storage facilities.To achieve this goal,the algorithm,data and result presentation are integrated in a grid based infrastructure.We use Web service technology to encapsulate the program in our Forestry E-Government information resources integration and utilization test bed.The particular information of the test bed which is supported by SIRGE middleware to bolster the computing resources and SIGApp middleware to manage the spatial processing services is given.Through a dedicated web portal users can have easy and fast access to the different data regardless the place where they are physically located.