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水滋润着城市文明,合理的水量给城市发展提供着宝贵的资源。但水性无常,急聚的水量会给城市带来巨大的灾难。虽然某一次洪水造成的损失不总是比其它自然灾害大,但在造成自然灾害的各种主要原因中,江河洪水泛滥在世界范围内是第一的。没有哪个城市能承受连续12个小时的暴雨倾注,没有哪个城市能经受大河河岸决堤的水量。 愈演愈烈的城市洪灾 洪灾是没有国度的,据世界红十字会最新报告,水灾和旱灾是两种影响最大的自然灾害,其年均受灾人口在千万
Water moistens urban civilization, and a reasonable amount of water provides valuable resources for urban development. However, water impermanence, acute aggregate water will bring huge disaster to the city. Although the damage caused by a flood is not always greater than other natural disasters, among the major causes of natural disasters, the flooding of rivers and rivers is the highest in the world. No city can withstand 12 consecutive hours of rainstorm pouring, no city can withstand the banks of the river banks of the water. Increasing urban floods floods are no national, according to the latest report of the World Federation of Red Cross, floods and droughts are the two most affected natural disasters, its annual average population affected by millions