海南岛霸王岭林区低海拔热带林群落数量分类与排序  

Quantitative classification and ordination of low-altitudinal tropical forests in Bawangling,Hainan Island

作　　者：刘万德[1] 丁易[2] 臧润国[2] 苏建荣[1] 杨民[3] 蔡笃磊 李儒财 陈少伟[3] 

机构地区：[1]中国林业科学研究院资源昆虫研究所,昆明650224 [2]国家林业局森林生态环境重点实验室,中国林业科学研究院森林生态环境与保护研究所,北京100091 [3]海南省霸王岭国家级自然保护区管理局,海南昌江572722

出　　处：《生态学杂志》2010年第8期1526-1532,共7页Chinese Journal of Ecology

基　　金：公益性行业科研专项(200904028);国家自然科学基金资助项目(30901143)

摘　　要：植物群落分类是依据植物群落的特征或属性对植物群落进行划分,是植被生态学的最基本也是最复杂的研究内容。热带林由于其复杂的环境条件及丰富的物种数量导致了其分类更加困难。本文根据海南岛霸王岭林区低海拔热带林群落的野外调查数据,运用二元指示种分析(TWINSPAN)、主分量分析(PCA)及除趋势对应分析(DCA)对该地区低海拔热带林群落进行了数量分类与排序。结果表明:TWINSPAN将21个样地共分成3组:热带低地雨林(样地9—12)、转化型季雨林(样地1—8)和热带季雨林(样地13—21)。PCA和DCA排序结果也得到了相同的结论,同时也反映了植物群落与环境因子的关系,热带低地雨林与海拔和凋落物厚度呈正相关,而热带季雨林与坡度和岩石裸露度呈正相关,转化型季雨林与环境因子的关系在PCA和DCA中则有所不同。DCA排序结果同时也表明,转化型季雨林是介于热带低地雨林和热带季雨林中间的一种群落类型。In order to understand the community types of low-altitudinal tropical forests in Bawangling of Hainan Island, a field investigation was conducted at 21 sampling plots, and the quantitative classification and ordination on the community types were made by using two-way indicator species analysis （TWINSPAN）, principal components analysis （PCA）, and detrended correspondence analysis （DCA）. Based on TWINSPAN, the forest communities in Bawangling were classified into 3 types, i.e., tropical lowland rainforest （plots 9-12）, transformed monsoon rainforest （plots 1-8）, and tropical monsoon rainforest （plots 13-21）. Same results were obtained by PCA and DCA ordination, which basically reflected the relationships between forest communities and environmental factors. Tropical lowland rainforest was positively correlated with altitude and litter depth, tropical monsoon rainforest was positively correlated with slope and the coverage of exposed rock surface, while transformed monsoon rainforest had somewhat different correlations with environmental factors. The results of DCA ordination also indicated that transformed monsoon rainforest was a transitional community type between tropical lowland rainforest and tropical monsoon rainforest.

关 键 词：数量分类 排序 环境因子 热带林 

分 类 号：Q948[生物学—植物学]