摘要
采用国际惯用的财务分析方法，对桉树与相思混交林进行了经济效益分析，结果表明∶尾叶桉（无性系ＭＬＡ）与厚荚相思行间混交纯利润最高达２１８８３．６２元／ｈｍ２，比带状混交提高４２．１％，比尾叶桉纯林提高３３．５％；行间混交、带状混交和纯林内部收益率分别为５１．９％，４９．４％和５１．６％；投资回收期行间混交为５．１年，其余为５．２年。雷林１号桉（实生苗）与厚荚相思混交，行间混交林纯利润最高，达１２００１．５８元／ｈｍ２，比带状混交林提高４６．４％，比纯林提高４９．３％；行间混交、带状混交、纯林的内部收益率分别为３９．４％，３８．２％和３７．７％；投资回收期均为５．３年。
The paper analyses the
economic benefits of Eucalypts and Acacia crassicarpa mixed forest by international normal
methods. The results show that the Eucalyptus urophylla and A. crassicarpa interrow mixed
forest has the most net income (21 883.62 yuan/hm2). It is 42.1% and 33.5% more than that of
mixture by strip and of pure ones respectively. The IRR of the interrow mixed forest, of the
mixture by strip and pure one are 51.9%,49.4% and 51.6% respectively. The period for recovery
of investment of the interrow mixed forest is 5.1 years and of the others is 5.2 years. The
E.leizhouensis No.1 and A. crassicapa interrow mixed forest has the most net income (12
001.58 yuan/hm2). It is 46.4% more than that of mixture by strip forest and 49.3% more than that
of pure ones. The IRR of these three forests are 39.4%,38.2% and 37.7% respectively. The
period for recovery of investment of these three forests is 5.3 years.\;
出处
《广东林业科技》
1999年第2期1-7,共7页
Forestry Science and Technology of Guangdong Province
关键词
桉树
混交林
相思
经济效益分析
Eucalypts,
Acacia crassicarpa, mixed forest, economic benefit analysis, net income, IRR, period for
recovery of investment
