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珍稀濒危植物广东松林的群落特征
引用本文:杨沅志,张璐,陈北光,苏志尧.珍稀濒危植物广东松林的群落特征[J].华南农业大学学报,2006,27(2):70-73.
作者姓名:杨沅志  张璐  陈北光  苏志尧
作者单位:华南农业大学,林学院,广东,广州,510642
基金项目:中国香港特别行政区嘉道理农场暨植物园项目
摘    要:基于南岭乳阳林区7200m^2样地的广东松Pinus kwangtungensis群落内共有227种维管束植物,分属于76科138属.群落外貌主要由中高位芽植物决定.整个群落垂直结构可明显分出乔木层、灌木层、草本层和层间结构等层次.群落的Shannon-Wiener多样性指数为1.9,均匀度为0.37,生态优势度为0.27,乔木层的这3项指数均高于其他层次,表明乔木层物种丰富,分布均匀.乳阳林区广东松林得以保存下来,主要与乳阳的特殊地形、地貌条件有关.保护珍稀濒危植物广东松,首先要保护其适宜的生境,可采取必要的人工抚育措施,保证广东松幼苗幼树的天然更新.

关 键 词:珍稀濒危植物  广东松  群落特征  南岭
文章编号:1001-410X(2006)02-0070-04
收稿时间:2005-05-25
修稿时间:2005-05-25

Characteristics of Rare and Endangered Pinus kwangtungensis Forest
YANG Yuan-zhi,ZHANG Lu,CHEN Bei-guang,SU Zhi-yao.Characteristics of Rare and Endangered Pinus kwangtungensis Forest[J].Journal of South China Agricultural University,2006,27(2):70-73.
Authors:YANG Yuan-zhi  ZHANG Lu  CHEN Bei-guang  SU Zhi-yao
Institution:College of Forestry, South China Agric. Univ. , Guangzhou 510642, China
Abstract:The characteristics of Pinus kwangtungensis forest were investigated in Ruyang Forest District, Nanling. The results show that 227 species in 138 genera and 76 families of vascular plants were found in the 7 200 m^2 plot. The physiognomy of the community is dependent on meso-phanerophytes. It can be easily divided into arborous layer, shrub layer, herbaceous layer and interlayer plants. The ShannonWiener index of diversity, evenness index and ecological dominance of the community are 1.9,0.37, 0. 27, respectively. The index of arborous layer are higher than that of any other layers, which suggests that the species are abundant and distributed evenly in arborous layer. The conservation of Pinus kwang- tungensis in Ruyang Forest District owes to the particular terrain and relief, so in order to protect the rare and endangered plant Pinus kwangtungensis, the most important thing is to protect the habitat, taking necessary man-made measures if possible.
Keywords:rare and endangered plant  Pinus kwangtungensis  community characteristics  Nanling
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