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作 者:覃德文[1] 云朝光 韦中绵 秦武明[1] 黄超群[1] 王冠玉[3] 赵彤宁[1]
机构地区:[1]广西大学林学院,南宁530005 [2]广西南宁市树木园,南宁530031 [3]广西农业科学院农业科技信息研究所,南宁530007
出 处:《南方农业学报》2013年第9期1524-1528,共5页Journal of Southern Agriculture
基 金:十一五"广西林业科技项目(桂科字[2009]第22号)
摘 要:【目的】对南宁市良风江森林公园内27年生青钩栲人工林林分调查资料进行经济效益分析,为该树种营林、生产和培育提供理论依据。【方法】采用静态与动态相结合的评价方法,对青钩栲人工林的内部收益率进行营林投入、单位出材和木材价格等经济指标分析,并确定最佳主伐年龄。【结果】27年生青钩栲人工林造林投资项目总利润为128290.50元/ha,年平均投资利润率为9.18%,财务净现值为6765.13元/ha,财务内部收益率12.26%。其中第16年投资利润率达14.05%,且财务净现值、内部收益率两项动态指标在第16年分别达到峰值67139.65元/ha和19.09%。【结论】青钩栲人工林在第16年采伐可获得最佳经济效益。[Objective]The economic benefits of 27 a Castanopsis kawakamii Hayata plantation stand materials in Guangxi Nanning Arboretum were evaluated to provide theoretical references for forest production and cultivation. [Method]Using static and dynamic evaluation methods, internal return rate was studied based on analysis of economic in- dicators including input, unit output, and wood prices to determine the optimal final felling age. [Result]The 27 a Cas- tanopsis kawakamff plantation investment project had a total profit of 128290.50 yuan/ha. The annual average profit rate of investment was 9.18%. The financial net present value was 6765.13 yuan/ha. The financial internal return rate was 12.26%. The first 16a investment profit rate was 14.05%. The two dynamic indexes namely financial net present value and internal return rate in the 164 year reached the peak of 67139.65 Yuan/ha and 19.09%, respectively. [Conclusion]In the 16th year, investment profit rate, Financial Net Present Value, internal return rate and economic benefits of Castanopsis kawakamii plantation were maximum.
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