Landscape Reconstruction Of Guoguo Park In Sanmenxia Based On Low Impact Development

The increasing urban hardening area has seriously affected the natural infiltration of surface rainwater,resulting in frequent urban waterlogging,poor flood discharge and other water circulation problems.As a natural sponge actively promoted by sponge cities,urban parks have ecological functions integrating infiltration,detention,storage,purification,utilization and drainage,and are playing an increasingly important role in urban water recycling.Low impact development is an important principle of sponge city construction.Based on the concept of low impact development,this paper transforms and improves the landscape of Sanmenxia Guoguo Park,hoping to reduce surface runoff,alleviate urban waterlogging and reduce rainwater pollution.The results are as follows:1.With the help of knowledge map visualization technology,this paper systematically combs and analyzes the development process of low impact development at home and abroad by using the bibliometric method.It is learned that the United States,Japan and other countries have formed a relatively complete rainwater management system."Runoff control","multi-objective optimization" and "sponge campus" are the hotspots of low impact development research in the future.2.Analyze the classic cases at home and abroad,extract the natural drainage method,elevation difference design method and linear narrative method,and apply them to the reconstruction of the drainage system of Sanmenxia Guoguo park.3.Based on the investigation of the current situation of Sanmenxia Guoguo Park and the concept of low impact development,the overall effect of landscape reconstruction of Guoguo park is planned and designed.It includes a design theme of "cultural recollection-Thinking-Education-action",five story divisions of "pursuit-Return-smoothness-Wisdom-practice",a landscape structure of "one axis,one ring,seven areas and multiple points",multiple landscape nodes such as "pursuit Pavilion,change square and ancient corridor",and gives suggestions on the combination of net stagnation,multi-level purification and storage.