Abstract
Urban acoustic environment, especially noise pollution, is a product of rapid urban development and urban scale expansion. It is one of the urgent environment problems in current urban planning and governance. This study analyzes the spatiotemporal changes of acoustic environment in the functional areas of cities above prefectural level based on the geographical perspective in China. The results shows that the higher urban level is, the more active acoustic environment in the functional areas will be; otherwise, the quieter it will be. The spatial variation of the acoustic environment in the functional areas in the east is generally higher than in the west, and the coastal areas is higher than interior during day and night, which is generally consistent with the spatial distribution characteristics of China's social and economic development. The influence factors of urban acoustic environment are multiple, the development of urban social economy has a significant influence on urban acoustic environment, and the factors like environmental protection consciousness of residents, environmental governance level of the city have a significant influence on urban acoustic environment. Therefore, the governance measures of urban acoustic environment should be more diversified.
Highlights
Since the reform and opening up, China has experienced rapid economic growth and achieved large-scale urbanization[1]
Urban environmental problems are mainly caused by noise pollution, solid waste, water and air pollution, among which, acoustic environmental quality is the environmental problem that attracts the most attention and receives the most reports and complaints [4]
The spatial distribution of noise between day and night in the three types of urban functional areas is mainly concentrated in coastal, northeast cities of China (Fig. 6a, 6b), especially the cities in northeast and southeast coastal areas are "busy" during the daytime, while the difference pattern is more obvious at night
Summary
Since the reform and opening up, China has experienced rapid economic growth and achieved large-scale urbanization[1]. From the initial study of sound, geography was less involved Factors such as sound production, transmission and crowd perception are closely related to its spatial environment, so the research of sound has significant geographical research characteristics [10]. There are some insufficient study of urban acoustic environment, mainly reflect in that the city sound environment is a complicated geographical phenomena, and the city of sound source, transmission and perception between the space environment are closely related, most research has focused on single city sound environment evaluation, the research about the relationship between the level of urban development and space environment, spatial characteristics of urban acoustic environment lack of attention, and more attention is paid to the research within a small scale. Based on the noise monitoring data of the acoustic environment in the functional areas of prefecture-level cities in China, the paper focuses on the practical problem of urban acoustic environment, explores the internal changing rules of urban acoustic environment in order to provide reference for urban environmental governance
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