Introduction to Tianfo Zhishan: Tianfo Zhishan National Nature Reserve is the only national nature reserve in China that aims to protect matsutake and its ecosystem. The main protection objects are the unique red pine and pine mushrooms in the north temperate forest system. Mongolian oak forest ecosystem. The total area of ​​the reserve is 77,317 hectares, including 17,577 hectares in the core area, 10,998 hectares in the buffer zone, and 48,742 hectares in the experimental area.