Introduction to the protected area: Fenglin National Nature Reserve was founded in 1958 and is the earliest protected area in Heilongjiang Province to join the World Biosphere Network. The reserve is bounded by Tangwang River and Fenglin River in the east, south and north and is connected to the Wuying Forestry Bureau. In the west, it is connected to the Shangganling Forestry Bureau by 630 Dagang. The core area is 4165 hectares, the buffer zone is 3812 hectares, and the experimental area is It covers an area of 10,188 hectares and has a forest coverage rate of 96%.