A STUDY ON CROSS-CENTURY URBAN SYSTEM IN CHANGDE
分析了湖南常德城市体系的等级规模、职能和空间结构，评估其发展趋势，并提出优化调控建议。
This paper analyzes urban system in Changde, Hunan province on the cross-century context. After exploring urban system constitution structure, including rank-size structure,function structure, spatial structure, and estimating trends of urban system development and transformation, the author provides future steps to regulate and optimize the urban system.