Quantitative Study Of Color Common Garden Plants In Guiyang City

Plant color is an important component of garden landscape,which has received strong attention from most people.Color quantification has become a new research direction in recent years.In this paper,through the continuous investigation of common garden plants in Guiyang City,the color is extracted by computer program language,and the regularity of color change and the phenology of objective representation were discussed.This paper analyzed the variation of color attributes with plant growth and development,and analyzes the relationship between color composition and aesthetics.The main conclusions of the study are as follows:Firstly,according to the vertical structure of the plant community,the garden plants were divided into three levels: arbor,shrubs and ground cover,its color richness order is shrubs,trees,ground cover.Secondly,the color data of leaf color are divided into three components: Hues,saturation and brightness.the variation characteristics are as follows: The hue value gradually increased with the change of time in the spring,and the other seasons remained relatively stable.The change of saturation decreased gradually with the development of time.However,the brightness decreased gradually with time in spring,and remained stable in the rest of the season.Thirdly,the seasonal color contribution value of different plant communities is related to each season,and the seasonal descending order of arbor is spring,summer,autumn,winter,and the seasonal descending order of shrubs is summer,spring,autumn,winter.The change of ground cover is the same as that of shrubs.Fourthly,the correlation analysis between color quantitative index and beauty degree of plant combination showed that there was a very significant negative correlation between plant landscape beauty and color phase index(r≤0.327,P<0.01).There was a very significant positive correlation between plant landscape beauty and saturation index(r≥0.422,P<0.01),and a very significant positive correlation between plant landscape beauty and main color(r≤0.327,P<0.01).There was a significant correlation between plant landscape beauty and adjacent color ratio(r≤0.207,p<0.5),and a very significant positive correlation between plant landscape beauty and contrast color ratio(r≤0.327,P<0.01).Fifthly,the color characteristics of plant combinations that are popular with the public in four seasons: in spring,the color species of plant combination are suitable between 2 and 6 species.The color of ornamental plants is mainly warm color,the main color distribution type is concentrated type,and the color harmony type is contrast;In summer,the color species of plant combination are suitable between 2 and 7 species.The color of ornamental plants is mainly cold color,and the color harmony is mainly cold colors;In autumn,the color species of plant combination are suitable between 3 and 5 species,and the color harmony is mainly similar colors;In winter,the color species of plant combination are suitable between 2 and 5 species,and the color harmony is mainly contrast colors.