摘要
应用５株优势木法在海南岛尖峰岭和琼海的２０ｈｍ２大叶相思人工林中初选出优树１０株，入选率为１％，对候选优树的树高、胸径、干形、冠形和健康状况等１０个因子进行测定并数量化，所得数据运用ＳＴＡＴ程序进行方差分析和主成分分析。结果表明：优树、优势木和林分间高径生长的差异极显著，影响优树质量性状的主要因子为高径生长、干形（通直度和圆满度）及自然整枝情况。综合评分显示：优树质量性状的得分大于５２，优树的高径生长应大于优势木１０％和１５％以上，大于林分平均生长量的１５％和３０％以上。
A total of ten potential Plus-trees have been primarily classified in 20 hm2 of 5to
8-year plantation of Acacia auriculiformis in Jianfengling and Qionghai, Hainan Island,based on
field-survey carried out in 1992 and 1993.The main indices recorded in survey in-cluded height
and diameter in breast height growth, stem-form,crown broadth,health condi-tionand some
features else of plus-tree。 The obtained data were processed in STAT and ana-lyzed with
method of PCA , DA and MS in order to justify which factor would play more im-portant role in
plus-tree selection。 The result demonstrated that growth difference amongplus-trees,the
dominants and single tree of each kind would exist in some content to a signif-icant level,and
that those factors concerned growth and stem-form of tree were of minor im-portance。As for
primary criteria for further selection, overall scores of plus-tree should ex-ceed 52,and its H &
DBH growth should be 10%～15%larger than those of the dominantand 15%～30%larger than
those of the forest。
出处
《林业科学研究》
CSCD
北大核心
1995年第6期641-646,共6页
Forest Research
基金
"八五"国家重点攻关项目
关键词
直干型
大叶相思
相思树属
选择
综合评分
straight-stem Acacia auriculiformis, plus-tree selection , PCA,
method ofthe five dominant tree
