Study On Evaluation And Optimization Of Eco-technology In Urban Park Green Space

The rapid development of urbanization leads to the decrease of the ecological function and biodiversity of urban parks,which causes many "urban diseases".Urban park green space is the lung of the city,which is very important in maintaining a good ecological environment.Study of ecological technology in urban park green space plays a vital role in improving the park green space ecology system,the premise of the application of ecological technology is to find out suitable ones for the city park green space,as well as to the evaluation and optimization of the ecological technology.so it can guide and help us to select technology in the park green space ecosystem.This research analyses what city park green space ecological technology needs,combined with the city park green space planning,construction and maintenance phase of the main ecological problems,aiming to solve the problems of the ecological category,and the ecological technology developed on the basis of collecting and summary of the work.Based on the summary analysis to the category of the ecological problems,this paper sorts out the ecological technology category and try to solve the ecological problems of the types of ecological technology,its use of collecting related literature were analyzed,and finally to "categories-class-small class" three levels to construct the ecological technology system.This study takes the evaluation content as the evaluation purpose,follows the selection principle of ecological technology evaluation index,and divides the ecological technology index system into three levels,which are the target level,the criterion level and the indicator level.The 14 indicators of the constructed indicator system were explained in detail.The weight of each indicator was calculated by using the analytic hierarchy process combined with the scoring results of experts.The ecological technology system was scored by combining the weight of each indicator,and the appropriate urban park green space ecological technology was selected.Quality coefficient method is used for city park green space processing and application of ecological technology for optimizing water space,determined by alternatives set,this paper evaluates indexes and standards,based on the degree of feasibility evaluation index score matrix figures to calculate the advantages and disadvantages,combining with the advantages and disadvantages of matrix figure coefficient of the comprehensive quality of the ecological technology,determines the optimal ecological technology.