The Simulation Analysis of Waterlogging and the Sponge City Planning Control of Central Urabn Area in Fuzhou City


In the new normal period of economic transition in China, The Government decision-making, which promoted the idea of people-oriented, came up with the concept of the Sponge City Using RS, GIS and multi-source open data, based on landscape scale, the study was done for the simulation analysis of urban waterlogging and the sponge city planning control in Fuzhou city. The result showed that, 1) The flood level of the 100 years flood of different scenarios are 3.943 m and 4.055 m in the central urban area of Fuzhou city, the flood area includes urban central business district, some villages along traffic arteries, international convention and exhibition center and so on. With the characteristics of high population destiny, high activity intensity, and high comprehensive economic and traffic status, the area is likely to be damage extremely by waterlogging. 2)The amount Sponge natural landscape in the central urban area of Fuzhou city had declined in 2006-2014. The urban residential land accounts for about 40% of the landscape conversion. The disappearance of Sponge landscape increased the risk of waterlogging. Based on Apriori algorithm sponge natural landscape disappear area and flooded area of spatial data association rules mining support reached more than 65%.The urban Sponge landscape conversion area and the flood area closely associated torts. 3) The fragmentation degree of urban Sponge landscape get worse, leading to the failure in making up a completed urban ecological function zone. The measures of sponge city planning control in Fuzhou city including building green corridor, green roof, permeable pavement, the comprehensive control of inland rivers was put forward accordingly.

In 2016 International Low Imapct Developement(LID) Conference