Risk Assessment Of Xinjin Baihetan National Wetland Park Ecosystem

Xinjin Baihetan wetland park was recognized by the State Forestry Administration and started the construction of national wetland park.Its wet flow-shoal wetland complex geomorphic characteristics,excellent geographical location and outstanding natural resources make the ecological barrier of the upper reaches of minjiang river,so the xinjin Baihetan wetland ecosystem health will influences the regional economic development.However,as the natural climate change and human activities will inevitably result in xinjin Baihetan wetland hydrological features and topographical features such as the change of the state,eventually lead to national wetland park Xinjin Baihetan wetland area is lost,damaged,or by falling productivity of the ecosystem service function,increase the difficulty of the construction of the park.The evaluation of Xinjin Baihetan wetland ecosystem risk,and puts forward corresponding suggestions and strategies,can assist the management department to solve Xinjin Baihetan national wetland park construction process possible problems,and finally through the construction of wetland park,eliminate the risk factor of Xinjin Baihetan wetland,build a stable ecosystem wetland park.(1)The concept of the risk assessment of ecological systems at home and abroad,the evaluation theory and methods were summed up,revealing that the research on the assessment of risk status of river wetland ecosystems is still in its infancy.Therefore,this study can help to explore ways to study the ecological risks of river wetlands.(2)The site survey,site sampling analysis,and data collection and collation of the Xinjin Baihetan wetland were conducted,and the specific conditions of the natural,ecological,and social environments in the area were further summarized,and the related risk sources were analyzed in detail.This provided necessary information and date for the later quantitative and qualitative assessment and evaluation practice.(3)Combining the preliminary information and the “PSR” risk assessment model,construct the Baihetan wetland risk assessment index system.With reference to a large number of documents,the risk level of wetland ecosystems was divided into(0-0.2)and(0.2-0.4),(0.4-0.6),(0.6-0.8),(0.8-1)Five levels.(4)The weight of each index was determined by the expert rating method and the AHP software yaahp.Then the fuzzy comprehensive evaluation model was used to determine the index membership function.Finally,the risk of the Xinjin Baihetan wetland was 0.711 through the function E=WR.(5)Finally,on the basis of the results of the risk assessment of the Xinjin Baihetan wetland,the strategies and recommendations for protecting the ecosystem health of the Xinhe Baihetan Wetland are proposed for the risk factors in the Xinjin Baihetan wetland ecosystem.