Eco-Environmental Quality Assessment of Xining City Based on GIS and AHP

This paper studies the Analytic Hierarchy Process (AHP), and puts forward the ecological environment AHP index of Xining City accordingly. By using GIS technology, Five-Laps-linkage Thought and Traffic Lights Principle, the writer makes a qualitative and quantitative analysis of Eco-environmental Quality, and gives an accurate and objective assessment to the Eco-environmental Quality of Xining City. These assessments would help a lot for government to determine the ecological environment protection policies. Studies show that, social circle, hydrosphere, atmosphere, lithosphere and biosphere make a decline in turn influence to Xining Eco-environmental Quality assessment, and hence the mean, social circle is the strongest influence to Xining Eco-environmental Quality. For a long time, the ecological environment in this area is in a precarious position; as a result, we should prevent to make aggressive decision during the urbanization, value the quality instead of quantity. Focus on the development of eco-industries; and gradually improve the Eco-environmental Quality in some area where is not so good; using the coordinative development principle between resources, environment and economy to guide regional urbanization.