The Wetland System Basd On GIS-iObject

Wetland is one of the most cherish natural resources on the earth, but as human intervention,the transition of the development and utilization make the wetland resources in the seriousdegradation and disappearance. Protect and restore wetland resources has become a priority intoday’s world of environmental protection. Science of wetland ecosystem health evaluation,reasonable forecast analysis, become the focus topic to the scholars to discuss.In today’s highly developed computer technology, GIS technology has also been greatlypromoted. Component GIS technology, integrated with the traditional informationmanagement system and the needs of the basic functions of GIS. The wetland ecosystembased on component GIS platform and SuperMap iObjects.Which includes the function ofmap display, query, result output and statistical analysis.Wetland health evaluation system including six modules. Such as layout operations, the threedimensional analysis, markov analysis, statistical analysis, map operation and overlayanalysis. Wetland health evaluation and markov analysis is one of the important function.realization of the function of health evaluation based on the popular DPSRC architecture, thatselected14indicators of evaluation system, analytic hierarchy process (ahp) is used todetermine the index weight coefficient. The final evaluation results from not healthy tohealthy, reflects the bay area within a few years due to the interference of human development,and the phenomenon of environment damage. In addition,the system can automaticallygenerate single value thematic map, which made people to understand the current situation ofwetland resources intuitively. Using markov mathematical methods to get the20years afterchanges in wetland types of speculation, that provide feasible analysis basis for reasonabledevelopment and timely protection of wetland resources. The full text mainly covers threeaspects: The first introduced the SuperMap iObjects technology. In the second tells the theoryand method of coastal wetland ecosystem health evaluation. The third aspect for the wholesystem function is the realization and part of the code.