基于基础地理数据统计的长三角城市主城区空间格局扩展研究

摘要

In a period of rapid urbanization , the main urban area changes most in the spatial pattern and the urban expansion process , being characteristic in expansibility and complexity .Studying on expansions of main urban areas is of great significance for understand-ing urbanization and optimization urban space structure .Based on statistics of basic geographic data , this paper analyzes the space ex-pansions of main urban areas in Yangtze River Delta since 2002 to 2012 .And it approaches to explorer the factors which affects the e-volution of main urban areas in Yangtze River Delta .%在快速城镇化时期，城市主城区的空间格局变化最为显著，以其复杂性和扩展性为突出特征。研究其扩展变化对认识城镇化、优化城市空间结构等具有重要意义。本文在基础地理数据统计的基础上，对长三角城市主城区2002～2012年的空间扩展进行了分析，探索影响其演变的若干因素。