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三峡库区受淹没影响的城市有２ 座，县城１１ 座，集镇１１６ 个。其中全淹县城有８ 座，集镇５５ 个。这些城市均需进行迁建，任务十分艰巨。由于三峡库区特殊的地理环境，使得城镇迁建用地十分紧张。按三峡库区城镇迁建规划、其规划人口共达８２ ．４３ 万人，规划用地５ ８０２ ．０３ ｈｍ２ 。要解决土地资源紧缺的矛盾，必须采取工程措施以增加环境容量。三峡库区现在所采取的工程措施主要为修建防护工程。仅万县市（ 重庆市万州区） 就修建了龙宝河、驷马桥、大河沟３ 项防护工程，为城市迁建提供了１００ ．８２ ｈｍ ２ 的建设用地，大大缓解了城市迁建用地的矛盾。修建防护工程可以增加城市用地，拓展移民环境容量，防止污染，改善环境，又可增加港口、码头岸线，改善对外交通条件，同时又能解决由于弃土引起的环境地质问题
There are two cities in the Three Gorges Reservoir affected by inundation, 11 in the county seat and 116 in the town. Among them, there are eight all-Yan county, town 55. These cities need relocation, the task is arduous. Due to the special geographical environment in the Three Gorges Reservoir Area, the land for urban relocation is very tight. According to the Three Gorges Reservoir town relocation planning, the planning population of 82. 430,000 people, planning land 5,802. 03 hm2. To solve the contradiction between the shortage of land resources, engineering measures must be taken to increase the environmental capacity. The engineering measures taken by the Three Gorges Reservoir Area are mainly for the construction of protection works. Only Wanxian (Wanzhou District, Chongqing Municipality) built three protection projects, including Longbao River, Zuma Bridge and Dahegou, providing 100 for urban relocation. 82 hm2 of land for construction, which greatly eased the contradictions of urban relocation of land. The construction of protection projects can increase the urban land use, expand the environmental capacity of immigrants, prevent pollution and improve the environment, but also increase the port and dock shoreline, improve the external traffic conditions and at the same time can solve the environmental and geological problems caused by spoil