经济区是在区域经济社会发展到一定阶段形成的由一组经济活动相互关联、组合而形成的经济地域单元。每个经济区都有一个经济中心和一定的腹地范围，经济区内部各城市之间存在着产业分工和密切的经济联系。西北地区地处内陆，经济和社会发展相较东部沿海地区有着明显的差距，产业结构单一，基础设施建设落后。本文通过对西北地区关窑天经济区、兰西经济区、天山北坡经济区和陕甘宁革命老区的区位、经济基础、发展要素、产业结构、竞争力的对比研究，试图探寻未来西北地区经济长期发展中新的重要增长极。%Economic zone is formed by a group of interrelated region units when the regional economy and society develop to a certain stage. Each economic zone has a economic center and hinterland areas, and each city in the economic zone has industrial divi-sion and close economic relationship. Northwestern areas locate in the inland, economic and social development is obvious lag behind eastern areas with single industrial structure and underdeveloped infrastructure construction. The paper compares the location of eco-nomic zone, economic base, development factors, industrial structure and competitiveness of Guanzhong-Tianshui Economic Zone, Western Lanzhou economic Zone, the North Slope of Tianshan Mountain Economic Zone and Shaanxi, Gansu and Ningxia’s revolu-tionary areas, trying to find out the new important growth points in the long-term development of northwestern areas’economy in the future.
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