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关中地区曾经孕育了周、秦、汉、隋、唐等中国最伟大的王朝而作为中国古代前期和中前期的统治重心。从政治地理学视角观察,它也自然成为这些王朝的核心区。而这一核心地理单元随着历史的发展而有一个逐步扩大的趋势,这表现为其对周边具有亲缘地理单元的扩展而使其成为关中地区控制全国的战略纵深,从而形成了一个以关中为核心的地理单元群,而巴蜀地区则在这一地理单元体系中具有其独特的地缘战略意义。
The Guanzhong area once gave birth to the greatest dynasties in China, such as Zhou, Qin, Han, Sui and Tang, and served as the center of gravity for the prophase and middle-preceding dynasties in ancient China. From the perspective of political geography, it naturally became the core area of these dynasties. This core geographical unit has been gradually expanding with the development of history. This manifests itself as an expansion of its geographical proximity to the surrounding geography and has made it a strategic depth control of the whole country in the Central Shaanxi Province. As a result, Core geographic unit group, while the Bashu region has its unique geostrategic significance in this geographic unit system.