| In recent years,every summer,after the storm,"inland look at the sea," the example abound,in people all kinds of ridicule behind the sound,in fact,hidden in the water problems for people helpless and concern.These years the media and the public focus on the underground pipe network construction,but even put a lot of financial and material resources,but in exchange for a very small change.In fact,this is because in the process of urban development,ignoring the ecology,ignoring the natural,undermining the original natural ecological pattern,so that it lost the ecological "elastic." With China’s implementation of the concept of sponge city,and its as a national policy,showing that China’s water resources management into a new historical period.Sponge city is the city can be like a sponge,in adapting to environmental changes and response to natural disasters and other aspects of a good "elastic",rain when the water,water,water,water,when needed to store water "release" And use it.The construction of sponge city with the goal of "rainwater is resource" is the first,and a city or a region needs to have enough groundwater area and wetland area to reduce surface runoff,control non-point source pollution,replenish groundwater,To protect the water quality as the core of water ecological management and water resources management concept.City Park as the city’s"green lung",which occupies an important part of the urban green space system,the transformation of the old city of the city,for the urban landscape has played a positive role in the update.This paper introduces the development of urban parks,the current situation of urban parks,the reasons for the transformation of urban parks,the profile of sponge city theory,and the combination of sponge city theory and urban old park transformation.Through the study of the old park at home and abroad and the utilization of rain and flood resources at home and abroad and the study of low impact development,the theory of sponge city is applied to the practice of park renovation.And summed up the construction of the old city parked in the 1950s and 1960s,and the transformation of the park according to the existing problems.This paper discusses the transformation method of terrain,water body,plant,building,pavement and so on.And in the transformation to respect the park’s terrain,water,surface soil,vegetation,the use of the park for the original use and protection,and then use the sponge city theory to transform the park,indicating that the park can be set up low-impact development facilities,such as permeable shop Installed,rain garden,sunken green,etc.,making the park can be infiltration of rain,the accumulation of rain,purify the rain.The use of low-impact development of specific measures to make the park in the city as a "sponge",its role is to reduce surface runoff,increase the rain on the ground and seepage,reduce non-point source pollution,reduce floods and reduce floods,add groundwater resources The The transformation of the park with the theory of sponge city is a positive effect on the utilization of rainwater resources in the whole city,and the waterlogging of the city can be alleviated.For the city,the construction of sponge city is the key to the construction of eco-city,sponge city design not only solve the problem of urban waterlogging,but also can improve the city’s quality and livability,improve the value of land,sponge city construction is to make The movement of water in the city is more natural. |