【摘要】 对辽东山区柞园麻栎、辽东栎、蒙古栎和波罗栎4种柞树不同枝龄地上部分生物量及部分形态指标进行测定。结果表明:同枝龄柞树以麻栎的供叶能力最大,辽东栎、波罗栎居中,蒙古栎最差;各柞树树枝、叶生物量都随着枝龄的增长而增加,增加幅度又因树种和环境条件而有所区别;轮伐周期内,柞树株高、地径、叶面积指数、冠幅与枝龄呈正相关,随枝龄增加而增大;5—6a枝龄冠幅增长趋于平缓,当年枝长与枝龄呈负相关,即随枝龄增长而减少,各柞树种间有一定差异。更多还原

【Abstract】 The biomass and morphological characters of aboveground part of 4 oak species,namely,Q.acutissima car,Q.liaotungensis koidz,Q.mongolica Fisch and Q.dentata.Thunb,with different ages in Liaodong mountainous area were measured.The results showed that the branch of Q.acutissima car had the highest leaf amount among four species at the same age.The branch of Q.mongolica Fisch had the least leaf amount.The branches and leaf biomass all increased with ages,which differed by species and environments.The Oak height,basal diameter,leaf area index and crown width were positively correlated with branch age,and augmented with branch ages in rotational cutting cycle.Branch growth tended to be gentle at five and six years.Specifically,branch length was negatively correlated with branch age in the same year,that is,it decreased with branch ages and there were differences among species.更多还原