Study on the spatial analysis of ecological resilience of marsh wetlands based on fuzzy matter-element model in Sanjiang Plain

Focus on ecological instability problems of marsh wetlands in Sanjiang Plain, basis on investigation and previous studies, the comprehensive assessment of ecological resilience by fuzzy matter-element model was done, then the spatial distribution of ecological resilience was got by GIS spatial analysis method. The problems of ecological instability were analyzed based on the spatial distribution of ecological resilience, which can provide references for the ecological protection and construction measures decision-making. The results show that the ecological resilience of Tongfu area is the highest, which indicated the level of ecological stability was high, the vegetation condition was good. So the protection measure for the marsh wetlands in Tongfu area was proper, the ability of resisting outside interferences and recovering by itself for the ecosystem in Tongfu area were great, therefore the ecosystem was stable in this area. While the ecological resilience in Anbanghe area and Wokenhe area were lower, especially the ecosystem resilience was lowest, the ecosystem were near to instable. As a result, it was recommended that the development and utilization of Anbanghe area was not keep going blindly as before, or the ecosystem would suffer more destroy and the consequence cannot be imagined, which should been paid enough attention.