论文部分内容阅读
基于1988、1992、1997、2000和2004年5期Landsat TM卫星遥感影像数据,采用GIS空间分析和景观格局分析的方法,分析了辽宁中部城市群城市增长的时空格局特征,并对其驱动力进行了探讨.结果表明:1988—2004年间,辽宁中部城市群城市面积持续增加,增长强度逐渐增强,城市面积由812.55km2增至1345.86km2,平均增长速率为32.96km2·a-1;1997年以后,城市增长强度迅速增大,以1997—2000年的城市扩展强度最大;辽宁中部城市群的城市增长主要集中在中部城镇密集带.1988—1997年,研究区城市面积的增长速度较慢,空间结构紧凑,以边缘增长和填充增长为主;1997—2004年,城市面积增长较快,表现为扩散的城市增长格局和复杂的城市斑块形状,以开发区的飞地式增长和扩散增长为主.非农业人口增长、经济增长、城市群城市空间的相互吸引、工业发展与开发区建设政策等因素是辽宁中部城市群城市空间快速增长的主要驱动力.
Based on Landsat TM satellite remote sensing image data of 1988, 1992, 1997, 2000 and 2004, using GIS spatial analysis and landscape pattern analysis, the spatial and temporal patterns of urban growth in the central Liaoning urban agglomeration are analyzed and its driving forces are analyzed The results show that: From 1988 to 2004, the urban area of urban agglomerations in central Liaoning continued to increase, and the intensity of growth gradually increased. The urban area increased from 812.55km2 to 1345.86km2 with an average growth rate of 32.96km2 · a-1. After 1997, The intensity of urban growth rapidly increased, with the largest intensity of urban expansion in 1997-2000. The urban growth of the central Liaoning urban agglomeration was mainly concentrated in urban-intensive urban areas in central China. From 1988 to 1997, the urban area in the study area grew more slowly. The spatial structure Compact, with the marginal growth and filling growth dominated; 1997-2004, the rapid growth of urban area, the performance of the urban growth pattern of proliferation and complex urban plaque shape, with the development of enclave-based growth and proliferation of growth-based Nonagricultural population growth, economic growth, urban agglomeration of urban agglomerations, industrial development and development zone construction policies and other factors are central Liaoning urban agglomeration urban empty The main driver of rapid growth.