The Study of Green Space System Planning Based on AHP and GIS in Changzhou City, China

This article introduces the analytical hierarchy process (AHP) and geographic information systems (GIS) into the traditional green space system planning. It takes the unique advantages of the multi-factor decision-making while combining the qualitative and quantitative analysis of AHP, combines with the strong spatial analysis functions of GIS, and brings a new attempt to the traditional method of green space planning system. In the green space planning system of Changzhou city, we selected 10 factors, established a weight table of these 10 factors; adopted the analysis of overlay topology of space of the geographic information system, space buffer zone analysis, space network analysis, and other functions. Thus, we made a distributing map of the ecologically sensitive area and green space distribution of Changzhou city, which provided us a scientific basis of green space planning system for Changzhou city.