Analyzing Daqing's Urban Spatial Form Evolution:Basing on the Technology of RS and GIS
以中国最大石油工业城市大庆为对象，利用遥感和GIS提取1984、1995和2007年建设用地数据，计算城市蔓延速度、紧凑度等指标，分析其空间形态演变特征及成因。
Taking the current largest oil industrial city of China—Daqing as researching object.In this paper GIS technology is used to extracts the related information such as the scale,shape,growth and location coordinate of urban construct land use from satellitic imagine data of Landsat MSS and TM in 1984,1995 and 2007.Based on the above data,calculate the speed,intensity,compact degree,fractal dimension of urban sprawl and level of urban smart growth,so as to analyze the urban sprawl characteristics of Daqing since 1984.The paper also explores the formation reasons of these characteristics using economic and social data,the method of regional statistic analyse as well.Daqing's large scale of construction land use,fast sprawl,spatial imbalance,anomaly of shape,low compact degree,direction consistency of urban sprawl and urban center movement are universal characters of general oil industrial cities expanding and development.But these characters last only a short time.The formation reasons of these characters are oil exploitation strategy,the limitation of nature environment,the guidance of traffic infrastructure,the control of urban planning,as well as the function transfer of central place.