Natural soundscapes have beneficial effects on the perceived restorativeness of an environment. This study examines the effect of birdsong, a common natural soundscape, on perceived restorativeness in Harbin Sun Island Park in China. Eight sites were selected and a series of questionnaire surveys on perceived restorativeness soundscape scale (PRSS) of four birdsong types were conducted during summer and winter. Two-hundred and forty respondents participated in this survey. Analysis of the survey results shows that different types of birdsong have different perceived restorativeness effects in different seasons. Crow birdsong has the worst effect on the perceived restorativeness in both summer and winter. Moreover, sound comfort and preference are significantly associated with the perceived restorativeness. The perceived restorativeness soundscape is best when birdsong is at a height of 4 m rather than 0.5 m or 2 m. The demographic/social factors of age, education, and stress level are all correlated with perceived restorativeness. There are suggestions for urban park design, especially with constructed natural elements. Creating a suitable habitat for multiple species of birds will improve perceived restorativeness. Moreover, appropriate activities should be provided in city parks to ensure restorativeness environments, especially for subjects with high levels of education and stress.

Green spaces in cities and urban parks serve as central areas for mental restoration and relieving pressure, and attention to soundscapes for their mental health benefits has become more prevalent. Birdsongs are perceived to enhance the restorative benefits of urban parks. This study examines Harbin Sun Island Park, the main bird habitat in the city of Harbin with numerous types of landscapes. We used space syntax to select the appropriate path space as a carrier and the pixel grid method to quantify path space shapes. A correlation analysis of field data was also used to explore the perceived restorative effects of birdsongs heard in urban parks using scales detailing the perceived restorative effects of various visual and auditory stimuli. The results show that soundscapes can significantly improve perceived recovery benefits, and that hearing birdsongs can significantly improve the perceived restorative benefits of wetland paths; the sky index of a tour path showed a significantly negative correlation with each feature (i.e., the four featured dimensions of “charm”, “escape”, “ductility” and “compatibility” included in the recovery scale), and the soft/hard ratio showed a significantly negative correlation with each studied feature. When the sky index ranged from 13–36%, tree coverage of the vertical coverage range was 30.28–38.6%, and when the soft/hard ratio ranged from 5–21, the perceived recovery benefit was strongest.

There are similarities and differences between open public space soundscape evaluation in different countries, mainly due to the influence of cultural background. This paper systematically compares the effect of social-cultural context on soundscape of urban public open spaces in China and Croatia. Eleven well-known and typical squares were selected. A series of questionnaire surveys within the soundscape framework were carried out during the summer season, and gathered data were analyzed. Principal component analysis (PCA) resulted in two principal components, eventfulness and pleasantness, as notable soundscape factors. However, eventfulness is the major factor in China, and pleasantness is the major factor in Croatia. In terms of environmental satisfaction, natural condition is the major factor based on PCA. Urban condition is the second factor in China, however, it is the third factor in Croatia. It is interesting to note that the physical environment is the most important factor in Croatian inland and coastal places, which is different compared to Chinese places. Visit purpose is the dominant factor associated with sound and environmental satisfaction. Natural sound and children have mainly positive correlations to sound and environmental satisfaction in China, whereas sounds of human activities have mainly negative correlations to sound and environmental satisfaction in Croatia.

Sound is a memory carrier in places with rich history and culture, which can invoke place memories and images. The purpose of this paper is to explore the effect of soundscape on place attachment in different types of historical blocks. Six historical blocks in Harbin, China, were selected, and a questionnaire survey was conducted to evaluate place attachment and soundscape. The soundscape evaluations of harmony, quietness and nature were significantly higher in residential historical blocks than in tourism historical blocks. The mechanical sound source preference of residential historical blocks was lower than that of tourism historical blocks. The main components of place attachment were place bonding and identity, and place dependence, but in different orders in different types of historical blocks. In tourism historical blocks, the preference of sound source helps to enhance place attachment, especially the sounds of activities and equipment related to the history and culture of the blocks. Soundscapes promote place attachment in tourism historical blocks and are positively correlated with place satisfaction. There was no significant correlation between soundscape and place attachment in the residential historical blocks surveyed.

A complex urban living environment and residents' sleep quality are intrinsically linked. Nonetheless, there is little evidence that the residential environment affects sleep quality. Based on the results of subjective questionnaires, this study uses the multiple regression combined with mediation analysis to construct a mechanical model of the impact of urban residential environmental perception characteristics on residents' sleep quality. Moreover, the differences among the influence intensities of the significant factors are compared and the results show that (1) in low-density environments (FAR < 2) and lower floors (4–6), residents sleep longer and have better sleep quality; (2) the environmental quality and service facilities of the physical environment and the sense of safety in the social environment have a significant impact on residents' sleep quality; and (3) the mental health of residents play a significant intermediary role in the relationship between social environment and sleep quality, with the highest effect accounting for 33.88%. The influence mechanisms of various environmental factors in a residential area on sleep quality were revealed and a more refined design basis for a healthy urban living environment, community renewal, and renovation was provided.

(1) Environmental education in an urban setting is crucial in terms of building a harmonious relationship between man and nature. As a kind of special ecological habitat, urban wetland parks provide convenience to enhance education on the natural environment. (2) In this study, we chose Harbin Qunli National Wetland Park in China as the subject, and analyzed the visual attention area with eye tracking to explore the differences in obtaining information about the natural environment in tourists with varying degrees of environmental concern and purposes of visit. A model connecting the perception preference and factors that affect visual attention of tourists was constructed. (3) Studies have shown that eco-society-hedonic tourists, who focus on parent–child activities, tend to pay more attention to wetland plants and prefer exploratory paths, while eco-hedonic tourists, whose main purposes are to relax and exercise, are more concerned about explanatory signs and enjoy flat scenic paths more. In addition, social tourists, who pay their visit for social activities, would care more about bird watching structures. (4) This research aims to assist in improving the legibility of environmental education space through the planning, design, and management of urban wetland parks, and explore the potential of landscape elements in enhancing public awareness.