今年夏季,又有许多城市为内涝所困。但处于洪峰中的江西赣州市,部分地段降水近百毫米,市区却没有出现明显内涝,原因是该城900多年前的古代排水系统发挥了关键作用。赣州排水系统的设计建造者是北宋的刘彝。熙宁年间,刘彝担任虔州(即今赣州)知州时,组织人员精心规划 In the summer of this year, many other cities have been trapped by the internal forces. However, in Ganzhou, Jiangxi Province, where the flood peaks were present, precipitation in some sections was nearly 100 mm. There was no apparent infighting in the urban areas because the ancient drainage system of the city more than 900 years ago played a key role. The design and construction of the drainage system in Zhangzhou is Liu Yu of the Northern Song Dynasty. During the Xining years, Liu Ye was carefully planned by the organizers when he was the state of Zhangzhou (now Ganzhou).