Since 1980s, the focus of the government's work has shifted to economic construction. With the establishment and improvement of the socialist market economic system, the market, as a means of resource allocation, plays an increasingly prominent role. Market factors gradually become an important variable of ecological evolution. Similar to forest changes in other developing countries, Nanmang County has also experienced a process of so-called forest transformation, that is, after a period of deforestation, due to the increasing economic benefits of trees, and then a large number of afforestation, forest coverage has greatly increased. The scale of economic forest industry in Nanmang County is gradually expanding. Market-oriented planting of economic crops has promoted the rapid development of economy. <<