| Urban residential quarter is the main construction form of urban residential buildings in China,and also the most important residential form in the city.Therefore,the urban residential area has become one of the important areas of China's construction and even the whole country to deal with climate warming.Xi'an is a cold region.The climate in cold regions is characterized by cold and dry winters,hot and humid summers in plain areas,and cooler summers in plateau areas.Major cities in the plain areas include Xi'an,Tianjin,and Jinan.Previous studies on ecological communities in Xi'an are mostly qualitative reviews.Therefore,how to quantitatively evaluate the microclimate environment and architectural environment of urban ecological residential communities,and pay attention to the microclimate of urban residential ecological communities from the early stage of design has become the focus of this article.Firstly,through cognitive the cognitive investigation,domestic and foreign research and analysis,the ecological community and landscape microclimate of the existing research to do a structured review,summarized and analyzed the current ecological community and the existing problems of landscape design.Secondly,in view of the deficiency of current research and the present situation of landscape microclimate in ecological district,this paper investigates the landscape microclimate of Xi'an district,compares and analyzes the air temperature and humidity,the temperature and comfort of the underlying surface of different underlying surfaces in the two test areas,and summarizes the influence and texture of the underlying surface types on the thermal and wet environment of residential areas.Thirdly,based on the ENVI-met software,the real-time numerical simulation model is constructed to simulate the temperature and humidity values at each time in the test area,and the simulation results are compared with the measured values to verify the accuracy and quality of the model.Provide technical feasibility for next ENVI-met software simulation of landscape microclimate.Finally,in view of the outstanding practical problems of landscape microclimate in existing residential areas,and combining with the contents of standard landscape design of ecological district in Shaanxi Province,the recommendation of fine native plants and the simulation of different scenarios in terms of tree,hard pavement and reflectivity of exterior facade of buildings are carried out,the influence and mechanism of tree height,underlying surface type and reflectivity of exterior facade of buildings on hot and humid environment are emphatically explained,which provide guidance for landscape design methods of ecological district with climate adaptation,and provide quantitative technical suggestions and landscape optimization design strategies for the regulation and control of landscape microclimate in future ecological district,creating an ecological and comfortable residential environment. |
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