摘要
以福安市1999年营造的香椿用材林林分为对象,进行造林效果和经济效益分析。结果表明:在不同的立地条件下,营造香椿用材林林分胸径、蓄积量差异显著,随着林分林龄的增大,香椿的胸径、蓄积量差异增大;Ⅰ、Ⅱ类地培育香椿用材林内部收益率在15.56%以上,能带来较好的经济效益,Ⅲ类地培育香椿用材林内部收益率在-5.31%,不能带来经济效益。培育香椿用材林应选择Ⅰ、Ⅱ类地造林,以选择Ⅰ类地最佳。
Taking Toona sinensis in Fuan city in 1 999 as objects,effects and economic analysis were conducted.Re-sult shows that under different site conditions,DBH,volume of Toona sinensis stand have significant differences;DBH,volume of Toona sinensis increase largely with the increase of the forest age.Cultivating timber of Toona sinensis can bring optimal economic （internal rate of return being more than 1 5.56% ）in Ⅰ,Ⅱ-Grade land;culti-vating timber of Toona sinensis can’t bring optimal economic benefits（internal rate of return being more than-5. 31% ）in Ⅲ-Grade land,which is operating at a loss.Ⅰ,Ⅱ-Grade land should be selected for cultivating Toona sinensis ,the optimal choice is the Ⅰ-Grade land.
出处
《防护林科技》
2015年第7期11-13,共3页
Protection Forest Science and Technology
关键词
香椿
造林效果
经济分析
Toona sinensis
afforestation effect
economic analysis
Toona sinensis
afforestation effect
economic analysis
