Introduction to the core area of ​​nature protection: Niumulin Nature Reserve is extremely rich in animal and plant resources, including more than 1,700 species of vascular plants in 214 families, 717 genera, and first-level national key species such as bell calyx, yew, and water pine. There are more than 30 protected plants in the second-level category and more than 60 in the third-level category. Among them, Bainianqing, Qingqianliu, Sheshanmixia, and Dalbergia are listed as rare tree species in the province. Among them, Niumulin's Linzhenshan Bao - "Qingqianliu" has the largest single plant and community in the province; 128 species of wild vertebrates from 99 genera and 57 families in the area, including 11 species such as pythons, pangolins, Sumatran antelopes, large civets, and small civets. National key protected animals.