红豆树在混交林(红豆×杉木)中的生长规律研究

Study on the Growth Law of Ormosia hosiei in the Mixed Forest of O.hosiei and Cunninghamia lanceolata

对不同林分类型红豆树生长差异的研究结果表明 :混交林中的红豆树 5年生前树高、胸径及 10年生前材积生长状况与纯林差异不大 ;10年生后 ,混交林中红豆树生长能力增强 ,生长量明显超过纯林。生长后期 (33年生后 )的总生长量比纯林大 ,但连年生长量急剧下降 。

The results indicate that after the age of ten,the growth ability of Ormosia hosiei strengthens in the mixed forest and its increment evidently surpasses that in the pure forest.In the later stage(after the age of thirty),its total increment is higher than that in the pure forest,but its current annual increment rapidly reduces,which shows the mixed forest has reached the mature stage.