热带作物学报2011，Vol.32Issue(3)：514-517,4.DOI:10.3969/j.issn.1000-2561.2011.03.030
西双版纳龙脑香热带雨林乔木种-多度分布研究
Study on the Species Abundance Distribution of Tropical Dipterocarp Rain Forests in Xishuangbanna
摘要
Abstract
Species-abundance relationship, one of the most fundamental characters of community structure, is a very important issue in community ecology. Based on the tree(with DBH greater than 1cm)data collected from the 20-ha plot of tropical rainforests of Xishuangbannan, species abundance distribution pattern is analyzed in this paper. The results showed that.( 1 ) Thirteen of 468 species (2.78％)had more than 1 000 individual ≥ 1 cm DBH, which represented 56.36 ％ individuals of the total. On the other hand, 230 of 468 species (49.14 ％ )had a mean density ≤ 1 tree per ha in the 20-ha plot. (2) There was a significant difference between the observed species-area relationship and the random placement model, which indicated that species did not have a random distribution in the plot. Also the speciesabundance distribution of the plot could not be well fitted by using the lognormal model confirmed this. (3) The log serial model could not fit the species-abundance well(but better than the lognormal model), which indicated that the environment was not the determining factor, but it indeed contributed much to the species abundance distribution.关键词
西双版纳/热带雨林/种-多度分布Key words
Xishuangbanna Tropical rainforest/ Species-abundance distribution分类
农业科技引用本文复制引用
兰国玉,谢贵水,王纪坤..西双版纳龙脑香热带雨林乔木种-多度分布研究[J].热带作物学报,2011,32(3):514-517,4.基金项目
农业部儋州热带农业资源与生态环境重点野外科学观测试验站开放基金项目(No.DKFS0901)和中国热带农业科学院橡胶研究所基本科研业务费专项项目[No.YWFZX09-05(N)]资助. （No.DKFS0901）
