Research On Evaluation Of Wetland Ecological Environmental Quality Along Huaiyan Expressway

Research on wetland ecosystem comprehensive evaluation along the expressway,for guiding the future expressway construction and protecting environment along the road provided a scientific theory,it has a great significance. The paper researched on the wetland ecosystem along the Huaiyan expressway,from the water environment,soil environment,atmosphere environmental aspects of comprehensive evaluation of the wetland ecological quality of the environment,the results are as follows:(1)Through the expressway construction and operation period of four fuzzy comprehensive evaluation of water quality are as follows,in all monitoring sites,in July 2007 is the worst compared to other conditions of the water quality monitoring; in the other three monitoring period,with the exception of South exchange in 2007 in April isⅤtype for the quality of water,in other monitoring the water quality is atⅡ～Ⅳtype,show that during the expressway operation period have not a greater impact for the water environment on eutrophication.(2)On the highway through wetlands along the soil environment of the two fuzzy comprehensive evaluation are as follows,the monitoring sites before and after the opening of the evaluation scores is basically same,with the exception of South exchange had a slight increase in 2007,other four than 2006 has dropped,the downward trend is weakly,can be ignored.Show that during the operation of the expressway have an impact on soil along the wetland ecological environment,but little.(3)In October 2006 not until the opening,Cheqiao exchange and Yancheng South exchange of air quality ratings reached a levelⅠ;to 2007 following the opening,the two monitoring sites air quality are varying degrees of decline,show that running on the expressway conducting the atmosphere surrounding environment are polluted,ecological environment surrounding had a certain impact.(4)Along the expressway through the wetland ecosystem comprehensive evaluation we can see that,before and after the opening of the expressway,through the monitoring data show that all monitoring sites in October 2006 the score is the highest rating(Cheqiao exchange except,in October 2006 is 0.753,but in April 2007 is 0.766),indicating that the opening of the expressway has a certain impact surrounding wetland ecological environment.(5)Through a computer program model,using VB language to develop a comprehensive evaluation based on the above-mentioned procedures,the practice is feasible;and this model is easy to operate and promote,it make environmental impact assessment intelligent,and satisfy the request of wetland ecosystem comprehensive evaluation along the expressway.