In ancient times, mountains were considered as a good omen of feng shui. In China's traditional geomantic omen, "there are mountains and water" is an auspicious combination, which is regarded as helpful to make money and treasure. Therefore, some ancient cultural sites and palaces are built on mountains, such as the Summer Palace in Beijing and the Purple Mountain in Nanjing.
With the acceleration of urbanization in China, the development and construction of hilly areas are also accelerating. Many hilly areas have become part of the city, which means that the natural environment and ecology of these places have been destroyed. Therefore, protecting the ecological environment and wildlife population in hilly areas has become an urgent problem to be solved.