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采用动态经济指标研究了富阳、临海新无性系短轮伐期工业用材林的经济效益 ,结果表明 :二个试验林的税后年均利润现值都不太高 ( 962 .4 2～ 2 4 80 .79元 /hm2 ) ,但是 IRR却都很高 ( 48.1 %～ 1 3 0 .0 %) ,利润率和效益成本比与 IRR基本一致 ;无性系和造林密度是影响经济的主要因素 ,选用优良无性系、确定合适的密度是获得更高经济效益的基础 ;产品价格是影响效益的最敏感因素 ,其次是劳动力价格和原材料价格。适当的低投入可大幅度降低短轮伐期工业用材林营林风险性
The economic benefits of industrial forest with short rotation of new clones in Fuyang and Linhai were studied by using dynamic economic indicators. The results showed that the present value of average annual after-tax profits of two experimental forests was not too high (962.42 ~ 2480 .79 yuan / hm2), but the IRRs were high (48.1% -130.0%). The profitability and cost-effectiveness ratio were basically the same as those of the IRR. Clone and afforestation density were the main factors influencing the economy. Clones, to determine the appropriate density is to obtain higher economic benefits; product prices are the most sensitive to the impact of efficiency, followed by labor and raw materials prices. Proper low investment can greatly reduce the risk of short forestation plantation forest business