近日公布的《北京市“十二五”时期水资源保护及利用规划》提出,截至2015年底,北京市新城防洪标准要达到50年一遇,而中心城区的防洪标准将达到200年一遇。从北京市防汛抗旱指挥部获悉,相关指标都是针对所在区域的外部防洪制定而成,诸如永定河、潮白河等一些骨干河道的承受能力,并不能与城市 Recently released “Beijing ” Twelfth Five-Year “period of water resources protection and utilization planning” proposed that as of the end of 2015, Beijing Metro flood control standards to reach 50 years once the flood control center city standards will reach 200 years Case. It was learned from the Beijing Flood Control and Drought Relief Headquarters that the relevant indicators are formulated for the external flood control in the area where they are located and the bearing capacity of some major watercourses such as Yongding River and Chaobai River can not be matched with the urban