Study On Landscape Quality Evaluation Of Hunan Botanical Garden Based On Perceptual Quantification

With the rapid development of digital technology,all kinds of intelligent devices and instruments are widely used.Relying on digital technology to evaluate various types of landscape resources has become an important topic of landscape quality evaluation research in academic circles.The botanical garden is one of the important urban green space types,which not only undertakes the main function of plant relocation and conservation,scientific research and popularization,but also is an important carrier of urban ecological resources,providing the public with green space for leisure and sightseeing,and is a business card showing the urban landscape.After years of construction and development,Hunan Provincial Botanical Garden has not only rich germplasm resources,but also created a beautiful and comfortable environment,which has played an active role in promoting the construction of ecological civilization in Hunan Province.This paper takes Hunan Provincial Botanical Garden as the research object,takes perceptual quantification as the main research method,evaluates the landscape quality of Hunan Provincial Botanical Garden from three quantitative dimensions of public perceptual evaluation,individual physiological feeling and individual psychological perception,and uses technical means such as big data,physiological experiments and psychological scales to comprehensively evaluate the landscape quality of Hunan Provincial Botanical Garden,and proposes suggestions and measures for transformation and optimization.The results of the study are as follows:(1)The overall landscape quality level of Hunan Provincial Botanical Garden is high,and the difference in the attention received by different landscape types is small.The results of eye-movement data analysis showed that the science display landscape received higher attention from the subjects,followed by the architectural vignette landscape and the water body landscape,and the road landscape received relatively less attention;the comprehensive score of SD evaluation factor analysis was 0.830,in which the architectural vignette landscape(0.877)>the science display landscape(0.794)>the water body landscape(0.783)>the road landscape(0.750).(2)The level of landscape quality in different zones of the park varies widely.The results of eye-movement analysis show that the landscape gaze points in Zone I(East Gate)are relatively concentrated,subjects search for information harder,and the landscape attractiveness is lacking;the landscape in Zone Ⅱ(West Gate)can quickly attract subjects’ attention,but the information in the landscape is more scarce or single;the landscape in Zone Ⅲ(North Gate)has higher recognition and subjects are more interested;the results of SD data analysis show that subjects evaluate the landscape scores of the three subzones:Zone Ⅱ The results of SD data analysis show that the subjects’ evaluation of the landscape in the three divisions are:Ⅱ(0.983)>Ⅲ(0.935)>Ⅰ(0.486),Ⅱ and Ⅱ have more than 10 factors scoring higher than 1,and Ⅰ has the lowest score of "colorfulness"(-0.109).(4)Inter-individual differences among subjects had less influence on the results of landscape perceptual cognition.Female subjects were able to extract landscape information more quickly,while male subjects searched more efficiently when observing the landscape;subjects with professional backgrounds paid more attention to the landscape quality of the site,while subjects with non-professional backgrounds paid more attention to the aesthetics and ecological benefits of plants in the landscape;subjects who visited the site more often searched more extensively for the landscape.The comprehensive evaluation results effectively show the type characteristics and spatial distribution features of the landscape quality of Hunan Provincial Botanical Garden,reflecting the physiological feeling differences and emotional preferences of visitors,providing an important basis for the planning,construction and transformation management of Hunan Provincial Botanical Garden,as well as an effective reference for the evaluation of the landscape quality of other types of urban green spaces.