Management Information System for Liaohe River Estuary Wetland Based on Open Source WebGIS

In recent decades, the society has changed view of wetlands from wastelands to highly productive areas with rich resources. More and more organizations have been conducting a variety of research and monitoring activities. For conservation and ecological restoration of Liaohe River estuary wetland, it is necessary to construct wetland management information system. Wetland information system involves management of attribute and spatial data. Web-based Geographic Information System (WebGIS) has come to be an indispensable tool for analyzing and managing both attribute and spatial data. Based on WebGIS technology, the system architecture is described in detail. By integrating open source software into a Web based Browser/Server environment, the system is developed and realized at nearly zero cost. Lots of features which are not inferior to those produced by commercial software are implemented in the system.