珍贵阔叶树种多树种混交造林生长比较研究

摘要

为系统总结珍贵阔叶树种多树种混交造林技术，本试验对2种立地条件下的多树种混交林的生长情况进行了对比研究，结果表明：（1）珍贵树种多树种混交模式在立地条件较好的苗圃地生长相对较好，其中柚木（Tectonagrandis）的树高、胸径生长量均达到显著水平，降香黄檀（Dalbergiaodorifera）、观光木（Tsoongio⁃dendronodorum）以及红锥（Castanopsishystrix）则无显著差异，且林分总体材积蓄积量无显著差异，表明珍贵树种多树种混交模式在试验中两种立地条件下均能够表现出较好的适应性。（2）采用综合权重分析法评价树种的速生效果结果表明，以观光木速生效果较佳，按速生效果从高到低排序为：观光木＞柚木＞灰木莲（Man⁃glietiaglanca）＞红锥＞降香黄檀＞格木（Erythrophleumfordii）。%In order to systematically summarize the afforestation technology of mixed forest of multiple rare species,we carried out comparison test of two kinds of site conditions of multi species mixed forest on growth,The results show that:(1)The trees in the nursery site condition relatively growth better,and site conditions had significantly influence to the growth of Tectona grandis,meanwhile,there are no significant difference of Dalbergia odorifera,Tsoongiodendron odorum and Castanopsis hystrix,the total stand volume had no significant difference too. Therefore,mixed forest of multiple rare species can show the good adapt⁃ability in two site conditions.(2)By the comprehensive weight analysis to evaluate the species of fast-grow⁃ing effect results shows that:fast-growing effect of Tsoongiodendron odorum is better,according to the fast-growing effect from high to low order is Tsoongiodendron odorum>Tectona grandis>Manglietia glanca>Cas⁃tanopsishystrix>Dalbergiaodorifera>Erythrophleumfordii.