摘要
对浙江九龙山国家级自然保护区红楠群落结构特征以及种群动态进行了调查研究,结果表明:该群落主要以樟科和山茶科植物为主,物种的丰富度指数、多样性、均匀度和优势度均为灌木层>乔木层>草本层;在生活型中,高位芽植物占绝对优势,达95.45%;叶级以中型叶为主,占93.18%,细叶次之,占4.55%,;叶型以单叶占优势,为86.36%;叶质以革质叶为主,占75.00%。群落的垂直结构上明显分成乔木层、灌木层和草本层;红楠的种群年龄结构呈"巨"字型,幼苗储备丰富,种群呈增加的趋势。从群落演替来看,红楠将长期处于优势地位。
Based on the data collected from sample plots, the community structure features and population dynamic of Machilus thunbergii in Jiulongshan National Natural Reserve of Zhejiang Province were analyzed. The results showed that the main species were the plants of Lauraceae and Carnelliaceae in the community. The species richness index, biodiversity index, evenness index and dominant index were all in the order of the shrub layer 〉 the arbor layer 〉 the herb layer. Phanerophytes occupied a dominant position in the community with 95.45 %. The dominant leaf size was mesophyll with 93.18 %, followed by microphyll with 4.55 %. Single leaf with 86.36 % was dominant in leaf form. The leather leaves dominated 75.00 %, best of all. The layer could be easily divided into 3 sub-layers in terms of height. The population of M. thunbergii, with age structure like a Chinese letter ＂巨＂, was increasing because of the abundant seedlings. M. thunbergii will dominate the community for a long time from the point view of community succession.
出处
《福建林业科技》
北大核心
2007年第4期129-133,共5页
Journal of Fujian Forestry Science and Technology
关键词
九龙山
红楠
群落
种群
Jiulongshan Mountain
Machilus thunbergii
community
population
