贵州乡土树种枫香树优树选择研究

在贵州12个县(市)的优良枫香树天然林分中,初选出枫香树候选优树60株.运用5株优势木对比法,确定枫香树优树生长指标的入选基线为:胸径、树高和材积分别应超过对比优势木平均值的13%,6%和23%.运用基于层次分析法的AHP模糊综合评价模型进一步对达标的候选优树进行形质指标评价,共评选出枫香树优树10株,可作为今后枫香树优良品系选育的母本材料.

On Selection of Superior Trees of Liquidambar Formosana in Guizhou Province

Sixty superior trees of Liquidambar formosana have been selected from the natural secondary stand in 12 counties of Guizhou Province.By means of 5 dominant tree comparison T-texting,the selection standard of Liquidambar formosana superior trees have been formulated as tree height,DBH and volume, which are 6%,13% and 23% respectively higher than mean trees.By using the analytic hierarchy process (AHP),making an appraisal further to morphological index of superior trees which the growth index up to standard,selected 10 superior trees.The 10 superior trees can be used as female parent for excellent varie-ties breeding.