汉长安城的历史形态演变与遗址区 村落保护

从城市形态学理论视角，探讨了汉长安城遗址区的历史形态演变，及其对遗址区村落的保护与再利用启示。随着2013年未央宫遗址公园的建设，遗址区原址的10个村落进行了整体搬迁。从城市历史保护的连续性、真实性与完整性角度来看，这种做法具有不少挑战。从汉长安城形态演变中最为突出的4个历史阶段，梳理了西汉以来汉长安城的城市建设、水系格局、道路系统以及村落布局等形态要素的演变过程，并通过信息叠加分析，探讨了遗址区村落与原址地形和水系格局等形态要素间的共生关系。最后从历史形态保护视角，指出了村落形态在汉长安城历史形态保护与传承中的重要意义。

The Historical Morphological Evolution of Han Chang'an City and Preservation of Villages on the Site

From the perspective of urban morphology, this paper explored the historical morphological evolution of Han Chang''an City, and its enlightenment to the preservation and regeneration of villages on the site. With the construction of Weiyang Palace Heritage Park in 2013, ten original villages had been relocated to other places in a whole. This kind of action could be problematic by the principles of historical urban form protection in terms of continuity, authenticity, and integration. This paper probed into the evolution of various form components of Han Chang''an City, such as urban topography, watering system, road system, and village layout, of four historical periods, during which Han Chang''an City had experienced the most outstanding form changes. In addition, the information of respective form components at different times were juxtaposed to study the symbiotic relationships between village layout and other forms of Han Chang''an City. In the end from the perspective of historical morphological protection, the paper pointed out the contribution of village layout to the protection and inheritance of the historical morphology of Han Chang''an City.