For example, it is said in Shangshu, Shiji and Mencius that Shun named Boyi as "Yu", that is, the official in charge of plants, animals, insects and fish in Shanze. Boyi once set fire to some forests to drive away poisonous snakes and beasts;
Yugong recorded that Dayu cut down trees on a large scale when he was controlling water.
The book Ya Huang Dian Shi also records the situation of people cutting down trees, building settlements and clearing up forests during the father's period in ancient Qi Huangong.
In the case of low productivity at that time, it was inevitable to obtain resources from nature, and it may have lasted for a long time. With the unreasonable utilization of forest and biological resources becoming more and more serious, people gradually realize the seriousness of the problem.