Soundscape Research Of The Ecological Water Patches In Urban Parks Of Harbin

At present, the acceleration of urbanization is destroying the urban natural environment. Urban parks as the green space which aim to improve the urban ecological environment, whose landscape planning and design is concerned greatly. At the same time with the enhancement of ecological consciousness and estrangement from nature, people increasingly appreciate the natural parts of urban parks. As the heterogeneous landscape environment, the landscape planning and design of the ecological water patches become more significant, with satisfying the visual effect of landscape, the quality of sound environmental gradually become an important aspect of what people care about in urban parks. This paper focuses on the soundscape of the ecological water patches in urban parks of Harbin, calling for the combine of the traditional visual landscape and soundcape experience, therefore, it is particularly important to study the relationship between soundscape and landscpe factors of the ecological water patches.Using methods of on-site objective measurements including sounds pressure measurement, sounds and landscape images acquisition, GPS positioning etc and questionnaire survey which contained the sounds, the users and landscape environment, the soundscape of the11artificial water patches of typical urban parks in Harbin were grasped more comprehensively.Based on the on-site study, this paper put the emphasis on the soundscape experiments of sounds inside and outside the urbanparks in order to find out the relationships between the landscape factors including landscape background, distance to water patches, the appearance of animals and human activity and the soundscape. Considering the reality and sensed presence, the experiments provided participants with3D landscape images while listening to reproduce soundcape model experience.During the statistic analysis stage, using single factor variance analysis method to study the difference inspection between the sounds inside and landscape factors first, the results showed that the natural sounds obtained the highest acoustic comfort, activity sounds, signal sounds performed a significant difference, and the acoustic comfort obtained relatively higher degree when sounds elements matched the landscape factors.Secondly, correlation analysis, regression analysis method were used to establish the regression curve model of the outside traffic sound level and its acoustic comfort, the analysis showed that the landscape factors had made the strong negative correlation of traffic sound level and its acoustic comfort weakened, also the landscape factors influence traffic sound comfort on a certain rule. On the whole, in a certain equivalent sound level range, the effects of landscape factors including natural landscape background, appearance of animals and unmanned activities landscape environment reduced the traffic noise comfort, hydrophilic distance factor of the natural landscape background further reduced traffic sound comfort. On the other hand, the strong promotion effect of urban architecture landscape background factor made the traffic sound comfort higher.In the background of advocating harmony with nature and landscape experience, this soundscape research of the ecological water patches in urban parks of Harbin will provide new idea and technical basis for landscape planning and design, sound environment improvement and management related.