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一、引言都市圈是以某一个或多个中心大都市为核心,以经济网络为纽带将周边中小城市紧密连接起来,构成一个综合区域。京津冀的协同发展历史可追溯至京津唐地区的国土规划问题研究。进入到上世纪80年代,在环渤海区域合作的大背景下,京津冀区域的概念被正式提出。随后,围绕着总部经济圈、大北京规划、京津冀都市圈、大首都特区一系列概念不断涌现,首都经济圈于2011年正式写入国家“十二五”规划。历经30余
I. INTRODUCTION Metropolitan area is centered on one or more central metropolises, and connects the surrounding small and medium-sized cities with economic networks as a link to form an integrated area. Study on the Coordination and Development of Beijing, Tianjin and Hebei Province to the Planning of Lands in Beijing, Tianjin and Tangshan Area. Into the 1980s, the background of cooperation in the Bohai Sea region, the concept of the Beijing-Tianjin-Hebei region was officially put forward. Subsequently, a series of concepts around the headquarters economic circle, Greater Beijing Plan, Beijing-Tianjin-Hebei metropolitan area and the Greater Capital Region continued to emerge. The Capital Economic Circle was officially included in the national “Twelfth Five-Year Plan” in 2011. After more than 30