Simulation And Design Strategy Analysis Of Spatial Climate Adaptability Of Zijingshan Park In Zhengzhou City

In recent years,with the rapid development of urbanization in China,urban environmental pollution and climate degradation have become increasingly serious.The emergence of urban environment and climate issues has attracted the attention of the whole society to the study of microclimate and thermal comfort at various scales of urban space.Urban parks,as important public spaces in cities,play an important role in improving the urban ecological environment,improving people’s quality of life,and promoting people’s physical and mental health.Conducting research on climate adaptability design of park spaces,regulating the thermal comfort status of park spaces,ensuring that the outdoor thermal environment meets the thermal comfort needs of people’s activities,and improving the utilization rate of outdoor space have important economic and social benefits in cold regions.On the basis of field measurement and computer numerical simulation,this paper studies the thermal environment of the four seasons space of Zijingshan Park in cold areas,deeply analyzes the role of landscape elements and spatial characteristics in creating the park’s microclimate,explores the design mechanism of the space climate adaptability of Zijingshan Park,and attempts to summarize and propose the urban park space design strategy based on climate adaptability,To provide a certain reference for the planning and design of urban park spaces under similar climate backgrounds.The research is mainly divided into five parts:Firstly,this article systematically elaborates on the background and significance of the topic selection,defines relevant concepts such as microclimate and climate adaptation design,and summarizes the research progress at home and abroad,summarizing available theories as the theoretical support for this study.Secondly,taking Zijingshan Park in Zhengzhou City as the research object,the thermal environment of 12 typical space measuring points in the park was measured in spring,summer,autumn and winter.The measured data were analyzed quantitatively and qualitatively,and the basic characteristics and changing laws of the thermal environment of the typical outdoor space in Zijingshan Park in Zhengzhou City were summarized.Then,the ENVI-met microclimate simulation software was selected to establish the spatial model of Zijingshan Park,and the prediction effect of the simulation software on the outdoor thermal environment parameters of Zijingshan Park was verified seasonally,providing a tool for evaluating the thermal environment of Zijingshan Park.Thirdly,the typical meteorological days of each season in typical meteorological years of Zhengzhou City are selected,and numerical simulation is carried out according to the background parameter data of typical meteorological days.The thermal environment evaluation index PET is introduced to analyze the simulation results of typical meteorological days of four seasons,and discuss the comfort degree of the thermal environment mechanism of Zijingshan Park within the day and night time changes of four seasons.Finally,summarize and propose the park space planning strategy based on climate adaptability,optimize the local space of Zijingshan Park based on the proposed strategy,and use ENVI-met software to verify the improvement effect of the optimization scheme.The following conclusions can be drawn from the study:(1)Through the comparative analysis of meteorological parameters between the measuring points in the park and those outside the park,it shows that the comprehensive effect of the thermal environment in the space of Zijingshan Park is better than that outside the park,and has a significant improvement effect on the microclimate.Different spatial layout and landscape configuration make the park present different thermal environment conditions.(2)Sunshade plays an important role in the thermal environment of park spaces.Shading is a direct and effective way to avoid direct sunlight and reduce air temperature.Vegetation and water are the main natural landscape elements that affect the thermal environment of the park space.Both of them have the function of cooling and humidifying during the day.(3)The verification results of the ENVI-met simulation software show that the error values of the simulation results in each season are within a reasonable range,and the change trend of the measured values and the simulation values are relatively consistent.The ENVI-met software model can better predict the thermal environment of Zijingshan Park in each season.(4)The regulation effect of various landscape elements and spatial layout of Zijingshan Park on microclimate has a diurnal variation law.The thermal comfort of parks in spring and autumn is relatively good,while the thermal comfort of parks in summer and winter is relatively poor.(5)The design strategy of the park space based on climate adaptability is summarized from the aspects of plants,pavement,water body,terrain,etc.,and the local space of Zijingshan Park is selected for optimization and reconstruction.The optimization scheme is simulated by Envi met software,which proves that the design strategy of the park space based on climate adaptability proposed in this study is feasible.This article attempts to summarize park space design strategies based on climate adaptability,in order to enrich research on climate adaptability design of urban parks under similar climate conditions and provide certain reference for related fields.