Influence of landscape elements in the park on thermal environment – using a metropolitan park in Taichung city as an example

Abstract

Population growth and rapid urban development have led to urbanization, caused environmental problems such as: heat islands and air pollution. The installation of park green space system is widely regarded as effective in alleviating the thermal environment and improving the surrounding air quality. Therefore, this study focuses on parks in highly developed cities, The measurements of terrain and topography were conducted using unmanned aerial vehicles (UAVs) to establish a terrain model. This model was combined with environmental factors such as wind speed, direction, solar radiation, temperature, and soil infiltration were measured to assess the correlation between different landscape elements and the environment in various parks. In addition, an air particulate monitor (Arduino Uno) was developed to measure the contribution of green space systems to urban air pollution. Furthermore, by integrating measurements of multiple factors and employing the Pearson's correlation method and three-dimensional scatter plots, this study explored the relationships between many variables of park. Test results show that 1. The materials of the landscape elements should have moderate thermal conductivity; 2. The moisture content of the soil of grassland should be monitored; 3. To improve the air quality, the correlation between wind speed and wind direction should be considered in the placement of landscape elements.