城市具有人口集中、生产集中、房屋集中、财富集中的特点。随着经济的发展,我国的城市化速度也越来越快,相应带来许多负效应,其中洪涝灾害的加剧,就是一个值得高度关注的突出问题。当今许多专家认为,在研究国家的可持续发展战略时,首先应该解决的是城市抗御灾害的能力。这就要 Cities have the characteristics of population concentration, production concentration, house concentration, and wealth concentration. With the development of economy, the speed of urbanization in our country is getting faster and faster, which brings with it many negative effects. The intensification of flood disasters is an outstanding issue that deserves high attention. Many experts today believe that when studying national sustainable development strategies, the first thing that should be solved is the ability of cities to resist disasters. This will be