马尾松不同采脂年龄和径级产脂量变化特点研究  

Changing law of Pinus massoniana with different resin tapping age and diameter

作　　者：舒文波[1,2] 杨章旗[1,2,3] 

机构地区：[1]广西林业科学研究院国家林业局中南速生材繁育实验室 [2]广西林业科学研究院广西优良用材林资源培育重点实验室,广西南宁530002 [3]北京林业大学,北京100081

出　　处：《中南林业科技大学学报》2011年第11期39-43,共5页Journal of Central South University of Forestry & Technology

基　　金：国家科技支撑计划课题(2006BAD24B0301-2);广西科技创新能力建设项目(桂科能0443001-9);广西林业重点招标项目(桂林科字2009-4);广西林科院基金项目(林科201010)

摘　　要：对广西古蓬马尾松优良种源人工林进行了不同年龄、不同径级采脂试验。结果表明:相同径级无论处于什么年龄,其产脂量没有显著差异;且随着径级增大,产脂量相应增加。研究和分析与马尾松产脂相关的树体因子,胸径与松脂产量关系最为紧密,其次为树高和树冠比,而与枝下高无显著相关。马尾松林采脂时,应在最小径级达到18cm方可进行;当达到24径级后,松脂产量随径级的增加量明显变缓。马尾松的树冠比在40%～50%时,松脂产量和生长量将维持在较佳状态;但树冠比与松脂增产比率间与湿地松存在差异。By setting the fixed sample with the different ages and the different diameter of the Gupeng pine provenances,the tapping experiments were carried out.Among the pine resin yields with same diameter class,regardless of tree age,there were no significant differences;as the diameter increased,the resin yield had a corresponding increase.Of the related factors that were related with pine resin yield,the relation of diameter and resin production was most closeone,followed by tree height and crown ratio,but under-branch height was opposite.Pine resin tapping minimum diameter should be of 18 cm;after the diameter reacheed 24 cm,the increased resin significantly slowed down in the subsequence.When the pine crown ratios were 40%~50%,the amount of resin production and growth remained in better condition;on the other hand,there were differences in crown ratio and resin increment ratio between Pinus massoniana and Pinus elliottii.

关 键 词：马尾松 优良种源 采脂 年龄 径级 

分 类 号：S718.3[农业科学—林学]