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Ours is a country prone to forest fires, forest fires each year on China's existing forest resources caused great losses, so the effective monitoring and forest fire fighting is a very important job. In order to improve the degree of automation of forest fire prevention work, and promote the process of forest fire prevention information, the establishment of forest fire based on WebGIS technology integrated management system is imperative. With the development of network technology, based on the \single way links and other shortcomings, the WebGIS in the development process with the development of low efficiency, inefficient use and maintenance difficulties and other issues, limiting the further development of WebGIS. RIA \distributed system architecture; while the Flex technology is currently one of the most popular RIA technologies. For WebGIS development, application problems, based on RIA / Flex technology and REST-style architecture development approach for WebGIS WebGIS development to become a new trend. This article from the Forest Fire Prevention business needs, to mutual aid counties in Qinghai Province to support forest fire thematic database, using ESRI's ArcGIS Server as a development platform, using Flex as a client realize WebGIS technology, combined with FlexView framework for ArcGIS REST API as method, developed based on RIA / Flex architecture WebGIS system - county forest fire decision support systems. System has a forest fire information acquisition, information transmission, information processing, information dissemination and evaluation of fire danger rating, fire spread prediction, forest fire fighting command and other functions, to achieve a forest fire business information resource, transmission network, scientific decision-making, directing Quick oriented, real-time scheduling, improve the efficiency of forest fire prevention, management and scientific decision-making capacity. The application results show that the system not only meet offline data processing, remote data efficiently processing, adaptive complex network environment, mutual cooperation between different platforms such as technical requirements, and has access to a wide range of platform independence, development of high efficiency, low cost system , updating and simple, and the integration of the richness of desktop applications and control, the traditional mode of Web applications and RIA respective advantages of a good combination, reducing the operating system and user response time. This study for the future of RIA technologies in forest fire prevention in the application of GIS systems do actively explored, with some reference and exemplary role.
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