Expansion Of Urban GIS And CA Model

The expansion pattern of the traditional city's “spread pie” type brings the disadvantages such as low land use efficiency and deterioration of the ecological environment.Whether the city has different development modes and their characteristics is the main purpose of this paper.In this paper,ArcGIS and IDRISI CA-Markov model in the integration of research methods to simulate and analyze the industry-based,only 30 years of history behind the mountains,in front of the coastal city of water-Dalian Economic & Technological Development Zone expansion model,Explore the difference with the traditional urban expansion model.In this paper,we use the remote sensing image data of the study area in 2006,2009 and 2012 to simulate the research area and explore the model of regional expansion.The main forecast years include 2015,2018,2021,2024,2027 Year,through the study and analysis to draw the following conclusions:(1)Based on the combination of GIS and CA,the method is mature and reliable,the simulation of the study area is accurate and the reality of the study area is fit,and the forecasting result reflects the urban development trajectory.(2)From the forecast results,the urban expansion trend of Dalian Economic & Technological Development Zone is an extension of connotation,which shows a new type of urban expansion model: that is,the expansion mode of internal intensive connotation-"urbanization" The This expansion model in line with sustainable development,ecological civilization construction requirements,but also reflects the "multi-rule one" of the importance.