摘要 | 根据乔木层次优势种、灌木层优势种和草本层优势种将分布在广西的黧蒴锥〔Castanopsis fissa Rehd.et Wils.〕林分为5个群丛,且各群丛的优势种均为黧蒴锥。对5个群丛的地理分布、生境特点、群落结构和物种组成也进行了分析。这5个群丛分别为:黧蒴锥-鼠刺-杜茎山-狗脊+金狗群丛(C.fissa-Itea chinensis-Maesa japonica-Woodwardia japonica+Cibotium barometz Assoc.)、黧蒴锥-鸭脚木-罗伞树+东方乌毛蕨群丛(C.fissa-Schefflera octophylla-Ardisia quinquegona+Blechnum orientale Assoc.)、黧蒴锥-鸭脚木-九节木+东方乌毛蕨群丛(C.fissa-Schefflera octophylla-Psychotria rubra+Blechnum orientale Assoc.)、黧蒴锥-基脉润楠-野锦香-金狗+东方乌毛蕨群丛(C.fissa-Machilus decursinervis-Blastus cochinchinensis-Cibotium barometz+Blechnum orientale Assoc.)和黧蒴锥-茶杆竹+淡竹叶群丛(C.fissa-Pseudosasa amabilis+Lophatherum gracile Assoc.)。 |
Abstract | The Castanopsis fissa Rehd. et Wils. forests in Guangxi of China are classified into five associations according to sub-dominant species in trees layer, dominant species in shrub and herb layers, and in these associations, C. fissa is the dominant species. Geographical distribution, habitat property, structure and species composition of five associations have been described. The seassociations are C. fissa-Iteachinensis-Maesajaponica-Wood wardiajaponica+Cibotium barometzAssoc., C. fissa-Schefflera octophylla-Ardisia quinquegona+ Blechnum orientale Assoc., C.fissa-Scheffleraoctophylla-Psychotria rubra+ Blechnum orientaleAssoc., C. fissa-Machilusdecursinervis-Blastuscochinchinensis-Cibotium barometz+Blechnum orientale Assoc.andC.fissa-Pseudo sasaamabilis+Lophatherum gracileAssoc. |
关键词 | 黧蒴锥; 常绿阔叶林; 群落分类; 群丛 |
Key words | Castanopsis fissa Rehd. et Wils.; ever green broad leaved forest; community classification; association |
作者 | 王献溥,于顺利,陈宏伟 |
所在单位 | 中国科学院植物研究所植被与环境变化国家重点实验室; 云南省林业科学研究院 北京100093云南昆明650204 |
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基金项目 | 国家自然科学基金资助项目(40771070和40641004); 云南省科技攻关资助项目(2004NG05-01); |