位于安徽省庐江县龙桥镇的黄屯老街于2016年被评为安徽省首批千年古村落,由于所处的小城镇地区经济落后、资源匮乏,其更新改造工程一直面临诸多困难.在经过为期一年的调查分析和方案设计的基础上,笔者归纳总结了小城镇地区的历史街区改造所遇到的共性问题,分别从改造资源、社会关系、居民价值观等三个方面对面临的困境作出分析.在清楚问题出现的深层次原因之后,借鉴王澍"自然建造"的概念提出小城镇历史街区"自然生长"的改造模式来解决面临的问题,并以黄屯老街的更新改造为例,详细介绍了"自然生长"改造模式的整个流程.目前,该模式已在黄屯老街的改造工程中逐步实施,其实际效果有待进一步的验证,但笔者希望以此为将来其他小城镇地区的历史街区更新改造提供借鉴和经验.%Huangtun is an old street located in Anhui Province's Lujiang Town, which was named the first millennium ancient village in 2016. Because of the economic backwardness and insufficient resources of this small town, renovation projects have faced many difficulties. A year of investigation and design resulted in identification of the common problems in transforming historical districts of small towns; these were analyzed from three aspects:transformation resources, social relations and values of the residents. Drawing on lessons from the "natural transformation" concept of Wang Shu, a "natural growth" transformation model was proposed to solve the problems of upgrading historical districts in small towns. This model was then applied using Huangtun street as an example where at present, its gradual implementation has resulted in renovation of the street. Whilst further verification as to the final outcomes of this project are required, it is anticipated that this study provides a model for other small towns in the future.
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