摘要
根据引种营造的32年水杉人工林的培育经营情况,计算分析证实,在实验地的立地和气候条件下,营造水杉人工林生长速度快,蓄积年均生长量达到11.5m3/hm2。经济效益大,32年林分的出材量263.85m3/hm2,收入122 312.3元/hm2,利润63 573.85元/hm2。投资回收期PP为17.59年;净现值NPV为5 422.29元,内部报酬率IRR为13.74%,获利指数PI为3.17。
According to the introduction building 32 years Metasequoia glyptostrobodies planted forest＇s cultivation operating condition, the computation analysis confirmed that in sample plot vertical and under climatic conditions, the building metasequoia planted forest growth speed was quick, stores up the yearly average growth quantity to achieve 11.5 m3/hm2. The economic efficiency was big, the material quantity of 32 years judeich was 263. 85 m3/hm2, receives 122312. 3 Yuan/hm2, profit 63573.85 Yuan/hm2. Investment recovery period PP were 17. 59 years, for the 5422. 29 yuan in net present value NPV, IRR internal rate of return 13.74%, for the profit index PI 3. 17.
出处
《林业科技》
2010年第2期8-10,共3页
Forestry Science & Technology
关键词
水杉
引种实验
生长量
经济效益
Metasequoia glyptostrobodies
Introduction experiment
Growth quantity
Economic efficiency
