Economic Analysis on Optimal Rotation Period of Slash Pine Plantations Used for Timber and Resin-A Case Study in A State-Owned Fengshushan Forestry Farm of Jingdezhen, Jiangxi Province

【Objective】 The rotation period of slash pine timber and resin plantations in China is appropriately extended on the basis of the mature age of timber plantations. Although certain economic benefits can be obtained in this rotation, there is still no scientific basis for whether the optimal economic benefits can be obtained. By analyzing the contribution of timber and pine resin to the economic performance of slash pine management, this study determined the time timeline of resin tapping and forest harvesting and the influencing factors, which can provide a scientific basis for maximizing the management benefit of slash pine plantations and the sustainability of forest product production. 【Method】 Based on the production practice of slash pine plantations in Fengshushan forestry farm of Jingdezhen, Jiangxi Province, a Faustmann model was established to calculate the land expected value（LEV） in considering the yield of resin and output of timber. Then 1) the contribution of timber and resin to the income of sl