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通过建立地质环境质量综合评价指标体系，运用灰色聚类方法，对三峡工程库区九座迁建城镇新址的地质环境质量进行了综合对比分析，划分出三个质量等级。地质环境质量等级反映了迁建城址环境组成要素与人类工程活动和社会经济发展的适宜程度。单要素地质体质量、城市综合灾度和自然资源优势度是主要的影响因素。
By establishing the index system of comprehensive evaluation of geological environment quality and using the gray clustering method, the geological environment quality of the nine relocation towns in the Three Gorges Reservoir area is comprehensively compared and analyzed, and three quality levels are classified. The level of geological environment quality reflects the appropriateness of environmental components and human engineering activities and socio-economic development of relocated urban sites. The single factor geological body mass, urban comprehensive disaster degree and natural resource dominance are the main influencing factors.