Study On The Comprehensive Evaluation Of The Suitability Of Urban Residential Environment Based On Remote Sensing

In this study of the existing urban human settlements environment livability evaluation,on the basis of in view of the urban human settlements environment characteristic,take advantage of remote sensing image data,the city through the water,night lighting,air quality elements such as included in the evaluation system,build the covers two aspects of the humanities and natural elements,vegetation index,temperature,water index and other seven cities habitability index evaluation system,explores a livable urban environment based on remote sensing technology comprehensive evaluation method,formed the city proper scale of the urban environment suitability evaluation process.Livable city according to the China study(2018)and large data of China’s urban population flow,selection of Beijing and sanya built up area as the research area,using2003-2018 landsat8 DMSP and image data of both 2003 and 2008,2013 and 2018,four years of urban human settlements environment livability evaluation,on the basis of the analysis of the Beijing residential environment suitability,sanya and space distribution characteristics and variation characteristics,studies the urban human settlements environment suitability development model,and the factors affecting the The aim is to alleviate the deterioration of urban living environment,improve the relationship between people and land,and promote the green development of cities and the construction of ecological civilization.The main research results are as follows:Livability of urban human settlements environment evaluation system is perfect,multi-source remote sensing image data through building the appraisal model of urban environment livability,on the basis of traditional research,the city through the water,night lighting,air quality and other elements into the evaluation system,constructs the comprehensive evaluation system of urban environment livability,formed the urban livability evaluation of operational process.By means of correlation analysis,the data of urban low-income population’s living space distribution are compared and analyzed to verify the evaluation results of urbanlivability.The study found that there was a significant positive correlation between the two.The lower the proportion of low-income population,the higher the urban living environment index.The evaluation results of urban living environment quality can better explain the spatial distribution characteristics of low-income population and verify the comprehensive evaluation results of urban livability.Through the study on the spatial distribution of the suitability index of human settlement environment in Beijing and sanya,it is found that Beijing follows the central-marginal distribution model,while sanya shows the distribution model of urban human settlement environment dominated by natural geographical environment.Beijing is a single center of radiation development while sanya is a multi-center area of radiation development;The main driving factors in Beijing are human factors and the main driving factors in sanya are natural factors.The suitability of urban living environment in sanya is better than that in Beijing.Through the analysis and comparison of the time changes of the livability of urban environment in Beijing and sanya,it is found that Beijing’s urban living environment has experienced three major stages: slow deterioration,steady development,and recovery and regeneration,while sanya city is divided into three major stages: the rise of humanistic suitability,the rise of contradiction,and the rise of harmony.On the whole,the living environment suitability of sanya is higher than that of Beijing.The time nodes of their development and transformation coincide with the implementation time of ecological civilization construction.Using the spatial analysis method,through in-depth analysis of the factors affecting urban livability,summarized three development models of urban human settlements environment suitability namely natural habitable oriented city,humanistic point livable city and comprehensive point livable city,finally based on three different types of urban human settlements environment suitability development model put forward some construction Suggestions.