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山地城市占我国城市总数约二分之一,由于其地理条件特殊,山地城市在地震灾害影响下与平原城市相比主要有以下特征:(1)多灾种叠加性;(2)灾害不确定性和复杂性;(3)道路、公共开敞空间等避灾和救灾空间缺乏、安全性较差。城市近郊村镇是中心城区外围,受城市辐射影响较大,从空间特征和社区治理结构上呈现明显乡域特征。随着城镇化进程加速,中心城区外来务工人口不断流入,近郊村镇人口不断增长,与有限城
Mountain cities account for about one-half of the total number of cities in our country. Due to their special geographical conditions, mountain cities have the following characteristics compared with plain cities under the influence of earthquake disasters: (1) Multi-hazard superimposition; (2) Disaster uncertainty Sexual and complexity; (3) roads, public open space and other lack of space for disaster prevention and relief, safety is poor. The outskirts of cities and towns are the outer periphery of the central urban area, which is greatly affected by the urban radiation, showing obvious rural features from the spatial characteristics and community governance structure. With the accelerating process of urbanization, migrant workers in the central urban area continue to flow in, suburban villages and towns continue to grow, and the limited city