竹阔混交林毛竹生产力与经营效益的研究

Studies on Bamboo Productivity and Advantage of Mixed Forest of Bamboo with Broad leaved Tree

本文分析比较了半荒芜天然竹阔混交林改造经营为竹阔混交林和毛竹纯林的生产力及效益。结果表明 :合理经营竹阔混交林具有较高的生产力和显著的经济效益 ,毛竹的平均胸径、竹秆生物量分别比毛竹纯林提高 9.6%和 37.2 %。平均每度产竹量、产笋量分别比毛竹纯林提高 2 2 .8%和 17.6% ,并能改善生态环境 ,维持土壤肥力 ,实现竹林的高产稳产。

The productivity and advantage of mixed forest of bam boo (Phyllostachy Pubescens MazelexH.de Lehaie) with broad leaved tree and pure stand of bamboo transformed from natural forest of bamboo with broad leaved tree that left nearly uncultivated were analyzed.The results indicated that the mixed forest has higher productivity and more significant econimical profit,as long as it is well managed.Compared with pure stand,mean D.B.H and culm biomass of bamboo had an increase of 9.6% and 37.2%,and mean culm yield and mean bamboo shoot yield had an increase of 22.8% and 17.6%,respectively,in mixed forest.Moreover,the mixed forest can ameliorate ecological environment and sustain soil fertility.Therefore,it can attain high and stead yield.