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北京地处华北平原的西北边缘,是座典型的内陆城市。十年九旱、水源紧缺、暴雨频仍、排洪困难。在北京地区的各种自然灾害中,水灾是北京最大的自然灾害。如今北京水害的主要形式是“沥涝积水”。近年来,北京局地暴雨接连不断,人民生命财产损失惨重。由此,联想到紫禁城(故宫)。故宫位于北京城中心,是一组规模宏大、金碧辉煌的古建筑。共有90多座院落,建筑面积约15万平方米,分布在72公顷的长方形的“紫禁城”内。
Beijing is located in the northwestern edge of the North China Plain, is a typical inland city. Nine drought in ten years, water shortage, frequent heavy rains, drainage difficulties. Among various natural disasters in Beijing, floods are the largest natural disaster in Beijing. Today, the main form of water damage in Beijing is “Leakage and Water Leakage”. In recent years, there have been successive heavy rains in Beijing, causing heavy losses to people’s lives and property. As a result, think of the Forbidden City (Forbidden City). Forbidden City is located in the center of Beijing, is a group of large-scale, magnificent ancient buildings. A total of more than 90 courtyards, construction area of about 150,000 square meters, located in the rectangular area of 72 hectares “Forbidden City ”.