The Comprehensive Evaluation of PRED System in Beijing-TianjinHebei Region and the Key Cities of Hebei
Abstract：In the regional PRED (Population，Resource，Environment，and Development) system，population is the core， economic development is the purpose，resources and environment is the guarantee and precondition. All the economic activities should take people as the foundation，and，with the help of existing resources and environment，promote the sustainable economic development to realize the regional coordinated development. Starting from the four subsystems such as population， resources，environment，and development，and 19 second level indexes，the author analyzes spacial and time series differences of Beijing-Tianjin-Hebei region and some key cities in Hebei. It is found that there are significant differences in this region in terms of PRED system. From the score of comprehensive evaluation of the PRED system，the coordinated development in Beijing- Tianjin- Hebei region plays the important role in optimizing urban functional layout. Cities in Hebei should take the integration of Beijing- Tianjin- Hebei region as the opportunity，further explore the pattern of economic development，further improve its capacity for development，especially the comprehensive capacity for sustainable development，realize stable economic growth and the comprehensively coordinated and sustainable economic development to promote the coordinated development of the PRED system in Beijing-Tianjin-Hebei region.
Key words：the integrated development of Beijing- Tianjin- Hebei region；coordinated development；sustainable develop⁃ ment；urban functional layout