The Influencing Factors Of Restorative Quality Of Audio-visual Environment In Urban Blue Space

In the 21st century,people are facing major global health challenges and the negative effects of physical and psychological symptoms.For example,COVID-19 has increased disease mortality and mental health problems,and psychological problems are difficult to eliminate in a short period of time.However,studies have found that the natural environment can help restore people’s mental health.The blue space is an important part of the natural environment,and its landscape has an obvious healing effect on people.In addition,although vision collects the most information from the surrounding environment(about 80%),studies have shown that the impact of the acoustic environment on the perception of restoration cannot be ignored.Therefore,in order to design a blue space audiovisual environment with high restorative effects,it is necessary to conduct a detailed study on the factors affecting the restorative quality of the audiovisual environment in the urban blue space.The purpose of this research is to explore the specific impact of the combination of hearing and vision on the restorative quality of the blue space.This paper studies the following issues:(1)The restorative effect of different sound sources in the blue space;(2)The influence of urban characteristics on the restorative effect of the soundscape in blue space;(3)Which landscape features in the blue space promote the restorative of the audio-visual combination;(4)How to improve the effect of sound on the quality of restorative in the blue space.The study collected 320 sets of field data through field research,screened the visual landscape images and highfrequency perceived sound sources of the research objects,and located 12 representative photos and 14 common sound sources.At the same time,19 blue space landscape features were obtained based on literature analysis and screening.In the experiment,12 photos and 14 kinds of sounds were combined,and 65volunteers’ evaluation of the quality of the hearing-visual combined restorative was measured through a short version of the revised restorative scale.Finally,the statistical software SPSS is used to analyze the data,and then obtain the comparison results of different restorative quality under the visual and audio-visual interaction,as well as the specific effects of the factors that affect the restorative quality of the blue space.The research has found the following findings:(1)Different underwater acoustics have different restorative effects.The highest quality of underwater acoustic restorative is the sound of rivers,followed by the sound of fountains and streams,and the sound of ocean waves has the lowest restorative quality;(2)Compared with the blue space with less obvious urban characteristics,the blue space with obvious urban characteristics requires more soundscapes to improve the quality of restorative;(3)The improvement of water quality and the increase in the number of ships can improve the quality of restorative of soundscapes,and the reduction of pavement area can also improve the quality of restorative.Improve the restorative quality of soundscapes;(4)In highly urbanized coastal areas,it is advisable to reduce plant diversity to improve environmental restorative;and in a blue space with a good natural environment,footsteps should not appear.According to research findings,the article proposes strategies for improving the quality of blue space audiovisual restorative from the visual and auditory perspectives,and puts forward specific improvement suggestions for blue spaces with different degrees of urbanization.In summary,this paper analyzes the correlation between visual landscape features,soundscape and restorative quality through the research on the factors affecting the restorative quality of the audiovisual environment in the blue space,and contributes to the restorative design of the urban blue space and the restorative environment in the future.Optimization provides guiding suggestions,and these research results can provide specific plan guidance and reference for urban planners,managers and landscape architects.