城镇衰落现象是城镇一个发展周期中由盛转衰的征兆，是一个复杂的变化过程，其特征、表现形式以及带来的影响等都因地域和诱发原因的不同而具有独特性。目前国内外的相关研究仍处于较为初步的阶段，尤其是我国，研究成果主要集中在宏观层面，缺乏微观的、分类型的专项研究。本文基于对城镇衰落现象研究脉络的梳理，选取特征鲜明的山地城镇作为研究对象，从地质生态变化的角度分析山地衰落城镇，探讨由地质生态变化而产生的山地城镇衰落现象的内在机制，并思索修复此类山地衰落城镇的方法，以期为山地城镇应对地质生态变化和城镇衰落等问题提供参考。%The decline of cities is a complicated process and a sign that the city is at the turning point from lfourish to decadence in its developing circle. Due to the diversity of regional factors and predisposing factors, the characteristics, forms and effects of the declined cities are unique. At present, researches in China on decline of cities are mainly concentrated on the macro level and still in the initial stage. First of all, this paper undertakes a summary of the ifndings from researches on the decline of cities. The paper then chooses the mountainous city which is full of distinctive features as the research object, and analyzes the recession phenomenon of mountainous city in the aspects of the geological and ecological changes, and then discusses the inner mechanism of this phenomenon, in order to ifgure out some repair methods for declined mountainous cities of this kind, hopping to provide reference for mountainous cities when dealing with the problems such as the geological and ecological changes and decline.
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