天津的城市战略定位是国际港口城市、北方经济中心和生态城市。天津要成为北方经济中心,必须要以天津为核心带动天津都市经济圈的发展。一、都市经济圈都市经济圈又称为城市经济圈、城市圈。都市经济圈是以经济比较发达并具有较强城市功能的中心城市为核心,由有经济内在联系和地域相邻的若干周边城镇所覆盖的区域组成,其经济吸引和辐射能力能够达到促进相应地区经济发展的最大地域范围,是具有 Tianjin’s strategic positioning of the city is an international port city, the northern economic center and eco-city. To become a northern economic center, Tianjin must take Tianjin as the core to promote the development of Tianjin’s urban economic circle. First, the urban economic circle Metropolitan Economic Circle, also known as the urban economic circle, urban circle. The urban economic circle is centered on a central city with relatively developed economy and strong urban functions and is composed of areas covered by a number of peripheral towns with economic internal connections and geographical proximity. Its economic attraction and radiation capacity can achieve the goal of promoting the development of corresponding regions The largest geographical area of ​​economic development is there