Study On Evaluation And Optimization Of Plant Color In Urban Parks Of Harbin Based On Public Aesthetics

With the goal of "beautiful China" construction,people's demand for ecological construction and environmental landscape is increasing day by day,and the landscape effect of park green space has gradually become the focus of social attention.As an important component factor of urban park green space,plant landscape color is an important ornamental feature of plant landscape,and it is also an important index factor that directly affects the quality of plant landscape.At present,the research on plant color focuses on exploring the texture of plant color change and the application of plant color aesthetics,and there is little research on plant color quantification,ignoring the visual feelings of the public.Therefore,the quantitative extraction of plant color features and the analysis of the relationship between plant color factors and public aesthetics have certain significance and necessity to guide the plant configuration and landscape upgrading of urban parks.In this paper,the 26 typical plant combinations in 7 urban parks of Guli Park,Middle East Railway Park,Zhaolin Park,Sports Park,Qunli Lilac Pa rk,Taiping Park,and Qingbin Park are used as research objects.Color Impact software is used to extract The characteristic attributes of the colors of each plant combination.From the perspective of the public's visual aesthetics,using the beauty assessment method to evaluate the color of plants in urban parks of Harbin,analyze the relationship between the plant color impact index and the aesthetic quality of the landscape,and regression analysis the public aesthetic SBE value and each color impact inde x To build a model for evaluating the beauty of plants in urban parks of Harbin.Through the evaluation and analysis of the color of plant combinations,the problems of plant landscape colors in urban parks of Harbin were summarized,and the plant combinations with lower beauty evaluation were optimized and reconstructed.The main results of the study are as follows:(1)This paper uses the color space of HSB(Hue,Saturation,Brightness)to divide the non-uniform quantification of HSB color space into colo r intervals H:S:B=16:4:4.A total of 256 colors and four levels of saturation and brightness are obtained.The color characteristics of three seasons plant combination in Harbin City Park are quantified and compared.(2)Using the beauty evaluation method to evaluate the color of plant combinations,through the construction of the beauty evaluation model,four main factors affecting the color beauty of plants in urban parks of Harbin are obtained,namely,color index,color quantity,main color ratio and cold and warm color ratio.(3)Color characteristics of high-quality plant combinations in urban parks of Harbin: in spring plant landscape,the appropriate number of colors is between 5-6,the main color ratio is1/3-2/3,the main color distribution is concentrated and comprehensive,contrast tone and more popular with the public;in summer plant landscape,the appropriate number of colors is between4-5,the main color ratio is 1/3-2/3,the main color distribution is concentrated,similar tone and more popular with the public;In the autumn plant landscape,the appropriate number of colors in the range of 3-6,the proportion of main colors in 1/3-2/3 is the most appropriate,the main color in a centralized and comprehensive distribution,similar to the tone and,adjacent tonal and relatively popular with the public.(4)Based on the above-mentioned color survey data,field investigation and plant landscape color model,and referring to the color quantitative data of plant landscape with high aesthetic value in different seasons,the plant combinations with lower ranking of beauty value in three seasons are optimized and reformed,thus providing suggestions for the improvement of color allocation of park plant community and the construction of garden plant land scape.