疏伐频率及疏伐强度对不同种源史密斯桉母树生长的影响  

Effects of Thinning Frequency and Intensity on Growth of Different Seeds of Eucalyptus smithii

作　　者：吴建花[1] 李伶莉 俞新水[3] 

机构地区：[1]保山市林业技术推广总站,云南保山678000 [2]重庆市风景园林科学研究院,重庆401329 [3]保山市森林资源管理总站,云南保山678000

出　　处：《林业资源管理》2012年第3期90-93,99,共5页Forest Resources Management

基　　金：史密斯桉母树林营建及种植技术示范推广(云林计财[2005]248号)

摘　　要：依次按50%,40%,40%的疏伐强度对新建的史密斯桉母树林进行3次疏伐管理后,通过方差分析、多重比较(LSD法)以及相关性分析,研究疏伐频率及疏伐强度对不同种源史密斯桉母树生长影响。结果表明:疏伐频率对不同种源史密斯桉母树高、胸径、冠幅等生长指标的影响具有显著性差异;疏伐频率及疏伐强度与树高、胸径、冠幅的净生长量呈中度及中度以上相关。Based on 3 types of thinning intensities of 50%,40% and 40% and by analysing of variance,LSD（least significant difference） and interdependency,the results of effects of thinning frequency and intensity on growth of Eucalyptus smithii can be drawn.The results show that thinning frequency has prominent difference relation with such growth factors as tree height,breast diameter and crown breadth,and thinning frequency and intensity have extremely interdependency with tree height,breast diameter and net growth of crown breadth.

关 键 词：史密斯桉树 母树林 疏伐 

分 类 号：S753.5[农业科学—森林经理学]