The service function of forest eco_system of Dayaoshan, Guangxi province included the following aspects, producing forest products, maintaining bio_diversity, conserving water, modifying the climate, maintaining and enriching the soil fertility and developing eco_tourism as well. Owning to the undeveloped economy of this mountainous area, frequent happened deforestation and reclamation, illegal logging, charking, the forests were damaged, and the ecological environment was deteriorated. Some measures focusing on protecting re...