Introduction to Quercus japonica forest: Quercus masculinea forest is distributed in the mountains on both sides of the Malan River Valley. It mainly grows on thin soil on sunny slopes. It is located in Liushu Goutou Mountain, Anzi Ridge in the west of Cha'an Village, and Yupilizi in the south. It is widely distributed in other places, and the associated tree species include oak, cork oak, Quercus nigra and Quercus mongolica.