福建林学院学报2011，Vol.31Issue(3)：207-211,5.
格氏栲天然林林窗边界木特征研究
Study on the characteristics of gap border trees in Castanopsis kawakamii natural forest
摘要
Abstract
The main structural characteristics of gap bolder trees ( GBT) of Castanoptis kawakamii natural forest, which consisted of the main tree species, structure of diameter at breast height (DBH) , structure of tree height and ratio of crown inclination ( RCI) , were investigated. The results showed as follows: the main tree species of GBTs were C. Kawakamii whose proportion was 74.75% j the structure of DBH of GBTs showed a left-skew distribution, which was also consistent with the normal distribution, Weibull distribution and β distribution; the structure of tree height classes showed a normal distribution mainly from 15 to 30 m; the GBTs' crown inclination was obvious, only 5.05% of GBTs regularly crowned, and the RCI of GBTs was mainly from 0.5 to 0.8 (70.71%). Moreover, the differences of RCIs of tree species were insignificant. With exception for a few low diameter GBTs, most of GBTs were composed of well-developed medium or high diameter trees which were over mature compared with those of understory, which indicated that it was difficult to accomplish the forest gap regeneration by solely relying on GBTs and it was indispensable to strengthen the protection of seedlings and young trees.关键词
格氏栲/林窗/边界木/偏冠率Key words
Castanopsis kawakamii/ forest gap/ gap border tree/ ratio of crown inclination分类
农业科技引用本文复制引用
何中声,刘金福,郑世群,洪伟,吴承祯,徐道炜..格氏栲天然林林窗边界木特征研究[J].福建林学院学报,2011,31(3):207-211,5.基金项目
福建省自然科学基金资助项目(2008J0008) （2008J0008）
教育部博士点基金资助项目(200803890011) （200803890011）
博士后基金资助项目(20070410796). （20070410796）
