Soundscape Optimization Design Of Qimu River Wetland Park Demonstration Section In Chongzhou Based On Perceptual Recovery Theory

Acoustic environment is an important part of wetland park ecosystem.Perceptual recovery theory is an important means to improve soundscape quality in wetland park.However,the existing construction of wetland parks mainly focuses on the visual level,ignoring the auditory perception,which leads to the gradual weakening of its recovery benefits to human body.Qimu River Wetland Park is a demonstration area of eco-tourism in Sichuan Province and a provincial wetland park,with good ecological environment and rich biodiversity.Natural soundscape types of Qimu River Wetland Park Demonstration Section are diverse and its sound environment quality is high.Research on its soundscape perception recovery is beneficial to human perception recovery as well as the optimization and improvement of existing wetland park soundscape.It is helpful to expand the development direction of wetland park and improve the utilization rate of wetland park.In this study,AHP is used to construct soundscape perception recovery evaluation system of Qimu River Wetland Park Demonstration Section to quantify soundscape perception recovery evaluation value,screen out factor indicators related to soundscape perception recovery,and clarify the direction of data to be collected for field investigation.Through field research and related data collation,the paper explores the spatio-temporal variation characteristics of soundscape in wetland park,analyzes the correlation between soundscape perception recovery and survey elements,analyzes the existing problems and available sound elements of soundscape in the study area,and finally concludes the optimization design of soundscape in Qimu River Wetland Park Demonstration Section from the macro,meso and micro levels.This can achieve the purpose of enhancing the benefit of soundscape perception restoration in wetland park.The main results and conclusions of the research are as follows:(1)Sound environment quality of Qimu River Wetland Park Demonstration Section is higher,and its soundscape perception recovery is of research value.However,due to its geographical distribution and noise pollution such as traffic sound,scientific and reasonable methods should be adopted to optimize it,so as to enhance its perception recovery benefits to human body.(2)Through the construction of soundscape perception recovery evaluation system,biological sound weight > geophysical sound weight > human activity sound weight > mechanical sound weight.Through the research,it is found that the factors related to soundscape perception recovery include individual characteristic index,objective soundscape index and subjective soundscape index.(3)The spatial and temporal characteristics of soundscape of Qimu River Wetland Park Demonstration Section are obvious,with different distribution modes and regions of different acoustic elements in different seasons,and the subjective soundscape indicators are affected by objective soundscape indicators.(4)The soundscape perception recovery of wetland park is significantly correlated with individual characteristics,subjective acoustic factor indicators and objective acoustic factor indicators,and there are differences in different seasons.Through analysis,it is concluded that it is necessary to improve the soundscape perception recovery of wetland park from the perspective of users,the spatial-temporal characteristics of soundscape perception recovery and objective acoustic indicators.(5)Carry out soundscape optimization of wetland park from the three levels of surface,line and point,and provide different sound Spaces for users with different mental health conditions through overall consideration of soundscape space planning;Based on the spatio-temporal characteristics of soundscape perception restoration,reasonable organization of soundscape four seasons experience path;Positive,negative and zero design methods were adopted to strengthen the use of positive sound sources,weaken and improve negative sound sources,and improve sound pressure levels and loudness exceeding the limits,so as to optimize soundscape details one by one,so as to enhance the benefit of soundscape perception restoration in wetland park.The research on the perceptual recovery of soundscape in Qimu River Wetland Park Demonstration Section provides a systematic and rigorous research idea and process for the soundscape analysis of the wetland park,plays an important role in the soundscape optimization of the wetland park,is conducive to the development of the wetland park,and to a certain extent it promotes the innovation of soundscape research and the renewal of soundscape design techniques.