Evaluation Research Of Qingdaocoastal Greenway Landscapebased On Visual Landscape Andthermal Comfort

As a kind of linear landscape green space,greenways link cities and towns with riverside,parks,nature reserves,scenic spots,and urban and rural residential areas,which can not only improve the landscape of the human living environment but also improve many urban climate problems,including the urban heat island effect.The coastal greenway is common in coastal cities,making full use of urban coastal resources,combining various design techniques,planning coastal public space and service facilities to link various resources along the coastal line,and providing multifunctional services for coastal city residents of linear urban landscape.With the development demand of domestic coastal cities for greenways,it is urgent to actively carry out research on the microclimate and thermal comfort of coastal urban greenway landscapes.Thus,this study takes the Qingdao coastal greenway landscape,which has great coastal mountainous characteristics,as the research object and conducts a comprehensive evaluation and superimposed analysis on its visual landscape and outdoor thermal comfort.The main content of this paper is divided into the following five parts:The first part is the basic research part of the whole paper,in which the first chapter briefly describes the relevant basic concepts involved in this paper,etc.,and reviews the current situation of related research at home and abroad to determine the research content of this paper and lay the theoretical foundation for the later paper.The second chapter summarizes the urban development and climatic conditions of Qingdao and the current situation of greenway landscape development in Qingdao.Secondly,the selection of research sample sites is discussed under the combination of theory and practice,which provides a clear direction for the whole research.In the second part,the microclimate measurements of the Qingdao coastal greenway are carried out based on the mobile measurement,and the thermal comfort evaluation of the site is carried out with the questionnaire.Based on the results of the measurements and the questionnaire,the microclimate and the thermal comfort of the site are analyzed,and the correlation between the landscape characteristics of the coastal greenway and the thermal sensation and thermal comfort is investigated,which lays the experimental foundation for further analysis in the later part of the paper.The third part is the research on the visual landscape elements of the Qingdao coastal greenway and the visual landscape evaluation.In this part,a comprehensive landscape analysis and evaluation method combining field research and questionnaire collection was used to investigate and visit the selected sample sites,and the findings were used to establish the data basis for the superimposed analysis in the following section.The fourth part of the study is a superimposed analysis of the thermal comfort and visual landscape of the Qingdao coastal greenway.The results of the study reflect the perception and evaluation of coastal city residents of the different sections and functions of the coastal greenway.In the fifth part,based on the findings of the study,the landscape planning strategy of the Qingdao coastal greenway based on the enhancement of visual landscape aesthetics and microclimate improvement is proposed,and the full text is summarized with shortcomings and outlook.The research results show that the mobile measurement can be applied to the microclimate research of coastal greenways,and the data obtained can better reflect the measured microclimate.The data obtained can better reflect the microclimate and thermal comfort on the measurement day;the microclimate of the site interacts with the respondents’ thermal perception and thermal comfort voting;different vegetation coverage and pavement coverage in each section affect PET(Physiological Equivalent Temperature),UTCI(Universal Thermal Climate Index),and respondents’ thermal comfort voting;respondents give different visual landscape evaluation feedback according to the node types in the sample section;in the superimposed analysis results,the evaluation items related to vegetation landscape are more important in the sample section.Plant landscape-related evaluation items show higher importance in respondents’ subjective evaluation and objective entropy weighting method weighting analysis;on the other hand,the road area rate of greenway landscape shows higher influence in visitors’ landscape evaluation.The research results of this paper can be further extended to the coastal linear landscape space in the same latitude and climate conditions and also lay the theoretical foundation for the construction and research of coastal greenways in the north.