【摘要】 基于8期遥感影像,研究了1978~2005年重庆市城市空间形态特征和演变过程。采用紧凑度指数、放射状指数和分形维数等城市空间形态定量研究的方法计算了不同时期重庆市城市空间形态的参数。结果表明,2005年重庆市建成区面积由1978年的87.32 km2增加到282.21 km2。改革开放后重庆市先后经历了20世纪80年代的相对稳定期、80年代中期以后的缓慢发展期和近年来的高速发展期,目前是扩展速度较快的时期,整个城市呈跳跃式发展。该时期增加的城市建成区面积中,有76.86%来自于周边的耕地,有20.52%来自于对周边农村居民点和其他建设用地的占用。更多还原

【Abstract】 Based on eight remotely sensed images,this paper studies the spatial-temporal characteristic of Chongqing’s city spatial morphology evolution in recent three decades.The process and characteristics of urban expansion and urban morphology are analyzed using fractal dimension,radiation index and compactness index based spatial morhoplogic measurement coupled with land use change mornitoring.The results show that Chongqing developed by leaps and bounds and experienced three major stages,i.e.,relatively stable period in the 1980s,the slow development period after the mid-1980s and the relatively high-speed development period in recent years.The urban built-up area was 87.32 km2 in 1978 and increased to 282.91 km2 in 2005.The increase built-up area originagtes from different land use type,of which about 76.86% coverted from arable land and about 20.52% coverted from rural area and dependent factory,diggings land and other construction area.更多还原