桉树工业原料林的投资经济效益与最佳经济轮伐期

Evaluation of Investment Economic Revenue and Confirmation of the Best Economic Cutting Cycle of Industrial Raw Material Forest Eucalyptus

在分析已有相关研究存在选取技术经济指标和利率随意性的基础上,运用经济效果评价动态分析法的净现值指标、内部收益率指标,对福建永安林业集团投资经营的巨尾桉工业原料林进行研究。结果显示:巨尾桉工业原料林最佳经济轮伐期为7年。7年主伐的巨尾桉工业原料林,净现值达到5718.50元.hm-2,内部收益率达到18.09%,具有较好的经济效益。研究结果还表明投资桉树工业原料林的风险较高,影响桉树工业原料林经济效益最敏感的因子为木材价格和采伐成本:木材价格下降10%,内部收益率降低31.09%;采伐成本增加10%,内部收益率下降14.93%。

This research based on the analyzing relevant researches, using the net present value （NPV） index and inner revenue ratio index （IRR） to research the industrial raw material forest Eucalyptus that was invested and managed by Yong＇ an Forestry Group of Fujian. Results showed that the best economic cutting cycle of eucalyptus was 7 years. And it had gotten huge economic effect. Its NPV reached 5 718.50 yuan·hm^-2 , and IRR added up to 18.09% per year. The result still indicated that the investment risk in the industrial raw material forest of eucalyptus was huge. The biggest influence factor was timber price and cutting cost. When the price of timber droped by 10% , IRR reduced by 31.09% ; when cutting cost increased by 10%, IRR droped by 14.93 %.