| With the gradual entry of cities in China,the process of urbanization is accelerating,the degree of urban compactness is increasing,and the problem of environmental pollution is becoming more and more serious.Urban settlements are the most close to people’s living places,and their space and environment should be more comfortable and livable.But in today’s society,urban settlements,in the 1990 s,the existing living area,the improvement of living standards,so that the residential environment more and more no longer meet the needs of the people’s lives.Based on the concept of low impact development,this paper studies the low impact development and the three-dimensional greening at home and abroad,and summarizes the feasibility of the transformation of residential area through its background and current research situation at home and abroad,and summarizes the advantages and disadvantages of the transformation means.Taking the existing residential areas in the 1990 s as the research object,the study of the two cities in the south and the north,the analysis of the settlements from the low impact development and the residential space,the distribution of the questionnaire,the observation of the residents’ behavior needs.Through the existing problems in the external space of the settlements,and the technical measures for the transformation of three-dimensional greening based on low-impact development.To Tianjin existing residential area as a base,the use of three-dimensional green transformation of the existing residential area of the external space to transform,so that the residential landscape space three-dimensional,is conducive to the area of rainwater for recycling.Planning their space,as far as possible to do the diversion of people and vehicles to enhance the residents in the residential area of security,and to improve the living environment and improve the quality of life for the purpose of living. |