Metropolitan area strategy is the urban spatial structure strategy ,suitable for China’s actual conditions and is an objective trend driven by market forces .Based on the theory of metropolitan region and the relevant planning materials ,this paper defines the spacial scope of Xi’ an metropolitan region . And then a qualitative and quantitative analysis is made of Xi ’ an metropolitan polycentric spatial structure ,on the basis of which the “144” polycentric spatial structure strategy of Xi’ an metropolitan region is put forward .Finally ,the paper discusses the collaborative development mechanism of polycenters in Xi’an metropolitan region .This research is expected to clarify the strategic direction of Xi’an metropolitan region .%都市圈战略是符合中国国情的城市空间结构战略,也是在市场力量推动下的客观发展趋势。本文依据都市圈理论,结合相关规划材料,界定了西安大都市圈的空间范围,并利用定性与定量相结合的方法,对西安大都市圈多中心空间结构作了分析,创新性地提出“144”的西安大都市圈多中心空间结构战略,最后讨论了西安大都市圈多中心的协同发展机制。通过研究以期明确西安大都市圈的空间战略方向。
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