Maolan National Nature Reserve lies in Libo County, Guizhou Province. It is a subtropical forest possessed the richest biodiversity among all karst areas. While rocks cover most of its surface, plants and trees are able to grow amazingly on this piece of land with rocks underneath. Maolan is poor and undeveloped, but this disadvantage is advantageous to help to conserve the most primeval and natural habitat of the forest. Even scholar in forest conservation believes that the forest with high ecological value may alleviate or help to solve the food crisis in the future.