期刊论文

中文

中南林业科技大学学报

1673-923X

2004

24

1

23-26

10.3969/j.issn.1673-923X.2004.01.003

湖南省林业重点资助项目（编号:99-002-01）的部分内容.；

本校为第一机构

用3个特征指标数值综合为重要值的定量方法,分层测定亚热带常绿阔叶林各物种在群落组成中的地位和作用.结果表明:经过顺向演替,中亚热带常绿阔叶林的种类组成比较丰富,在1 000 m2左右的3个样地99个样方内有灌木11～14种,草本10～21种;按重要值的大小排位,灌木的优势种主要由山茶科、山矾科、紫金牛科的常绿种所组成,草本的优势种主要由蕨类、姜科、莎草科的种所组成;灌木和草本植物中有不少是涵养水源效益好和药用价值高的种;与乔木同样,灌木、草木2个层次中均含有常绿、半常绿、落叶3个层片,攀援或附生多种层间植物,已形成多层的立体群落结构,表现出向更高阶段演替的外貌特征.重要值较能客观地...

In order to reflect the structure law of the forest community and provide the foundation for building up, protecting or utilizing the multi-functional forest ecological system, the numerical and synthetic characters of the forest community species based on the composition of the forest community varieties were studied. The quantitative method, whose significant value is synthesized from three characteristic indexes, was applied to the determination of the status and function of the various species of the subtropical broad-leaved forests. The re...