尾巨桉伐倒木腐朽率调查研究  

Investigation on Decay Status of Felled Wood of Eucalyptus urophylla×E.grandis

作　　者：卢翠香[1] 王杰 毛纯 杨中宁 陆绍锋 唐正涛 LU Cuixiang;WANG Jie;MAO Chun;YANG Zhongning;LU Shaofeng;TANG ZhengTao(Guangxi Forestry Research Institute/Nanning Eucalypt Plantation Ecosystem Observation and Research Station of Guangxi/Guangxi Key Laboratory of Superior Timber Trees Resource Cultivation,Nanning 530002,Guangxi,China;Guangxi State-owned Qipo Forest Farm,Nanning 530000,Guangxi,China;Guangxi Forestry Group,Nanning 530022,Guangxi,China)

机构地区：[1]广西壮族自治区林业科学研究院/南宁桉树森林生态系统广西野外科学观测研究站/广西优良用材林资源培育重点实验室,广西南宁530002 [2]广西壮族自治区国有七坡林场,广西南宁530000 [3]广西林业集团有限公司,广西南宁530022

出　　处：《桉树科技》2022年第4期13-16,共4页Eucalypt Science & Technology

基　　金：广西林业科技推广示范项目(桂林科研〔2021〕27号);中央财政林业科技推广示范项目(〔2019〕TG21号)。

摘　　要：为研究尾巨桉伐倒木木材腐朽规律,通过伐倒木法调查伐桩腐朽状况,分析腐朽率与坡位和伐桩直径之间的关系。结果表明:6.5年生尾巨桉伐倒木腐朽率15.33%;受立地环境因子影响,中上坡(高海拔)比下坡(低海拔)腐朽率高;随着伐桩直径增大,腐朽率逐渐上升,当伐桩直径>25cm时,腐朽率达54.55%。In order to study the decay rates of felled wood of Eucalyptus urophylla×E.grandis,the decay status of stumps was investigated by felled trees,and the relationship between decay rate,slope position and stump diameter were analyzed.The results showed that the decay rate of 6.5-year-old E.urophylla×E.grandis felled wood was 15.33%.Decay rates were affected by site environmental factors with middle and upper slopes(high altitude)having higher rates than that of lower slopes(low altitude).With the increasing of cutting pile diameter,the decay rate increased gradually.When the diameter of stump is more than 25 cm,the decay rate reaches 54.55%.

关 键 词：尾巨桉 伐倒木 腐朽率 坡位 伐桩直径 

分 类 号：S792.39[农业科学—林木遗传育种]