Abstract:

The conditions of transforming between positive external effects and negative external effects of commercial forest were demonstrated on the basis of analyzing the phenomenon of the two effects in the producing process of forestry,and the works of externalities of commercial forests were treated as concealed influences.In the light of the theoretical foundation to solve the problem of externality,the suggestions concerning to the following measures about commercial forest internalization of externalities were presented combining with the real situation of production of commercial forest: make up for the silviculture work by margin; forest road construction,the design of optimization to cutting area and the work for prolonging the rotation period should be recouped appropriately; remit or reduce the tax of wood production; invest in afforestation on the barren mountain in full; purchase the current forest,etc.

Key words: commercial forest, externality, internalization, measure, recoup