| With the gradual acceleration of urbanization,new urban areas have been developed rapidly and new roads have proliferated in recent years,so it is important to build high-quality green landscape.Road green space is an important part of the urban garden green space system,which not only forms the traffic space of the city,but also represents the urban landscape and is the embodiment of the vitality and vitality of the city.However,in the existing urban road green space landscape creation,there are still green space encroached by parking spaces,poor plant form,simple level,single color,pest and uneven development of each road greening construction and other phenomena.This paper takes the road green space plant landscape of Changchun High-tech Zone as the research object.Firstly,after a comprehensive and detailed research work on the road green space plant landscape of High-tech Zone with the relevant disciplines and basic theories of road plant landscape construction,the current situation of road green space plant resources and application in High-tech Zone is summarized and analyzed.Secondly,the evaluation system was constructed by combining the AHP method and SBE method to evaluate the plant landscape of road green areas in high-tech zones.Finally,the evaluation results are analyzed,and according to the evaluation results,optimization strategies are proposed.The main contents and conclusions of the study are as follows.(1)The current situation of plant resources and application of road green space in high-tech zone was investigated and counted.The plant composition structure,plant growth,plant ornamental characteristics,plant vertical structure,plant and landscape vignette,and road green view rate level of 26 major road green areas in high-tech zone were investigated and analyzed.(2)Use the method to conduct a comprehensive evaluation of the plant landscape of road green areas in high-tech zone.The evaluation system was finally constructed by combining AHP method and SBE method through comparison,and the "evaluation of road green space plant landscape in high-tech zone" was determined as the target layer,the evaluation of plant landscape quality and beauty degree as the system layer,the ecological environment,ornamental value,safety function,psychological feeling as the criterion layer,and species diversity,plant growth trend,green space rate as the criterion layer.The evaluation of plant landscape quality and scenic beauty is the system layer,ecological environment,ornamental value,safety function,psychological feeling is the criterion layer,and species diversity,plant growth,green space rate and other 12 index layers.After determining the weight of each factor and evaluation criteria,the plant landscape is evaluated by two methods respectively,and the consistency and correlation of the two methods are tested to construct a comprehensive evaluation level of plant landscape of green areas in high-tech roads,and the roads are graded for landscape quality.(3)Analyze the results and propose optimization strategies based on relevant disciplines.The evaluation results were summarized and analyzed.In terms of plant landscape evaluation B1(AHP method),the overall road green space plant landscape CEI value in the high-tech zone is 75.04%,rated as grade II.Overall,the road green space plant landscape quality in the high-tech zone is good,and the three roads with the highest scores are Ulsan Road(97.93%),Beyond Street(89.78%),Jinhu Avenue(87.48%),from different road types,the average CEI score of main roads(79.92%)is greater than that of secondary roads(76.51%)than that of branch roads(64.46%);in terms of beauty degree evaluation B2(SBE method),the average value of public satisfaction with road greenery landscape in high-tech zone is 0.62,and the three roads with the highest scores are Ulsan Road(0.90),Silicon Valley Avenue The three roads with the highest scores are Ulsan Road(0.90),Silicon Valley Street(0.87),and Livable Road(0.83),but there is a large difference between the scores of different roads.The Kendall ′ s W coordination coefficient consistency test and the analysis of the ranking difference of the evaluation results between the two evaluation methods confirmed a strong degree of consistency between the evaluation results of the two methods,but with some differences.It was again verified that the two methods can be applied in an integrated way,which can provide a comprehensive analysis of road green space quality from the perspective of scientific research,and also evaluate the merits and demerits of the landscape quickly and conveniently from the public perspective,thus meeting the needs of different levels.The final result is that there are 8Ⅰ level landscape roads,accounting for 30.77% of the total sample area;13 Ⅱ level roads,accounting for 50.00% of the total sample area;5 Ⅲ level roads,accounting for 19.23% of the total sample area;there are no roads with Ⅳ level of landscape.In view of the problems of road green space plant landscape in high-tech zone,the four dimensions of ecological environment,ornamental value,safety function and psychological feeling are used as the optimization path,and the optimization suggestions such as enriching green space plant species,improving species diversity,following scientific design principles and integrating design are put forward,and the optimization strategies are proposed for different road forms. |
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