利用RS和G IS技术,分析了常熟市建设用地扩展和人口分布变迁情况,揭示了常熟市人口城镇化的特征。指出1984-2005年间,常熟市的农村人口向城区和镇区梯次转移,城镇化率稳步提高,城镇建设用地扩展速度处于合理范围内。同时,由于城镇化的不完全、不彻底,在农村居民数量减少的同时农村居民点用地不减少,城镇化率被高估。
This paper studies by technologies of RS and GIS the characteristics of population urbanization of Changshu City. The results show that between 1984 and 2005, the rural population of Changshu City flow into city and town sequentially. Therefore, the urbanization level of Changshu City rises constantly, and the increasing speed of construction land use is still under rational limits. However, because the progress of urbanization is incomplete and deficient, the urbanization level is overestimated. And, while the number of rural residents reduces, the land use of rural residential area hasn't been reduced.