Discussion on Concept and Proportion of Economic Forest and Ecologic Forest in Returning Cultivated Land to Forest

Many problems occurred in the course of implementing the Strategy of Western Development,of which the selection of tree species and planting management are the typical ones.To tackle these problems,the first step is to clarify the concept of ecologic forest and economic forest,and to determine their proportion according to the aim of the reclamation,the ecologic environment and social economy of the area.Various concepts and contents of ecological forest and economic forest are investigated in the field of Silviculture and of the policy of returning cultivated land to forest,and also the proportion of economic forest and ecologic forest is discussed,considering both understandings of lots of scholars and the author's case study of the reclamation area in Western China and Dangshan County in Anhui Province.The result reflects that further effort should be dedicated to precise the concept of the economic forest and that of the ecologic forest,and a unified proportion of the both kinds of forest should be adjusted to be flexible,because the economy forest can benefit both the ecology and economy of the area,and so keep sustainable and feasible the implementing of conversion of the farmland into forest.So given the suitable condition,the proportion of economic forest should be increased appropriately,and through which,the income would be increased and the society would be stable.