Introduction to Baijitan: Ningxia Lingwu Baijitan National Nature Reserve (Baijitan Sand Control Forest Farm) has a total area of 1.48 million acres and is responsible for protecting the largest natural caragana forest in my country and the largest in the northwest region. It is responsible for 306 species of xerophytic psammophytes and 115 species of animals, including the cat's head thorn plant community and the rare and endangered plant Holly.