摘要
采用企业动态经济评价方法对刺槐萌生林不同轮伐期的经济效果进行了评价;按NPV最大、IRR最大确定了林分经济成熟龄;通过敏感性分析确定了经济成熟龄区间。研究结果表明;以20a以上的轮伐期经营刺槐萌生林在经济上是不合算的;贴现率不低于12％时,在(?)立地级经营刺槐萌生林是不合理投资;以培育干材和小径级矿柱材等工业用材为目的,对刺槐萌生林实施8～13a短轮伐期作业法,从经济效果最佳角度考虑是比较合理的。
The dynamic economic evaluation analysis was adopted to calculate the eco- nomic effectiveness of different rotation age of the coppice forest of black locust,while the economic maturity was determined with the help of sensitivity analysis. The results showed that no benefit would be derived from black locust coppice forest with a rotation age beyond 20; with a discounting rate not less than 12%, the investment on the coppice forest manage- ment on the Ⅲ land site is not reasonable;and the rotation age at the 8th to 13th years was reasonable for coppice forest management of black locust.
出处
《林业科学研究》
CSCD
北大核心
1997年第1期6-12,共7页
Forest Research
关键词
刺槐
萌生更新
经济评价
山地
black locust
coppice method
dynamic economic evaluation
