| Under the background of new-style urbanization,town construction has gradually changed from expansion to improvement.The problems left after rapid development need to be solved urgently.In-depth analysis of problems,scientific evaluation of urban construction status and development of targeted promotion strategies are the key problems to be solved in China’s development at the present stage.Existing studies focus on mountain towns update remains to be further improved.Based on the evaluation model of street landscape aesthetic sense of towns in Longnan mountain area,this paper evaluates the typical cases,analyzes the realistic causes of the evaluation,and gets the real feelings of users,so as to provide decision-making basis for better management and improvement of town landscape.It is mainly carried out from the following three aspects:Firstly,by summarizing the characteristics and the aesthetic elements of street landscape in Longnan mountainous area,the evaluation index system is determined.On this basis,the aesthetic evaluation model of street landscape is constructed by using AHP.In the first step,based on the characteristic analysis,three items of form beauty,comfort beauty and cultural beauty were determined as the criterion layer,seven items of natural form beauty,architectural form beauty and spatial form beauty were determined as the sub-criterion layer,and 29 items of landscape visibility,sky openness and green coverage rate were determined as the index layer.In the second step,the analytic hierarchy process is used to determine the index weight.After the importance analysis of evaluation indicators,uniqueness,color coordination degree,green coverage rate and sense of local culture were four important indicators.Thirdly,likert scale was used to conduct field questionnaire survey on street users.The fourth step,combined with the index weight,the questionnaire results are weighted,and the comprehensive score is converted to percentage system and graded evaluation.Secondly,based on the theory of landscape aesthetics and landscape perception,this paper takes the middle street of Kang County as an example.Base on the evaluation model,a questionnaire is designed.The subjective evaluation data of users are collected and analyzed by questionnaire survey and statistical methods,and the evaluation data are weighted according to the index weight to obtain the final evaluation result.The results show that the comprehensive score of landscape aesthetics of middle street is 74.9224,which belongs to II.The scores of air freshness(88.8727),landscape visibility(88.0501),greening coverage(81.8804),plant Nativity(81.5930)and uniqueness of architectural form(80.3563)are excellent.Finally,combined with the actual situation of Kang County,the parity results are described and analyzed to explore the practical causes of the evaluation results.Put forward the improvement thinking framework,take solving problems as the goal,take impact analysis as the path,determine protection and utilization,highlight characteristics,fine design,enrich connotation and activate inheritance as the promotion core,and put forward optimization measures for various specific landscape spaces of the street.The evaluation results are consistent with the actual situation,and the realistic causes are consistent with the evaluation results,which shows that the index system and evaluation model constructed in this study have good theoretical significance and application value for the evaluation of street landscape aesthetics in Longnan mountainous area,and can be further popularized in other similar towns in Longnan mountainous area. |