广东乳源大峡谷自然保护区植被景观特征分析  

Analysis about the Vegetation Landscape of Guangdong Ruyuan Grand Canyon Nature Reserve

作　　者：冯汉华[1] 文仕知[1] 肖育檀[1] 刘贤词[1] 夏敏峰[1] 

机构地区：[1]中南林业科技大学,湖南长沙410004

出　　处：《中南林学院学报》2006年第1期90-94,共5页Journal of Central South Forestry University

摘　　要：在调查大峡谷自然保护区植被和植物资源的基础上,对该区的植物区系和植被类型进行了分析.结果表明:该保护区的原生植被种类丰富,具有从南亚热带向中亚热带过渡的特点;区内植物区系成分复杂,组成以热带-亚热带和热带成分为主,热带性分布的植物类群甚多,使得区内沟谷常绿阔叶林具有某些雨林特征,小型板根、茎花现象、附生植物、藤萝密布等随处可见,而在其它中亚热带地区这种现象很少见;保护区内的植被有8个类型,包括具有雨林特征的常绿阔叶林、山地常绿针阔叶混交林、山顶常绿阔叶矮林、崖壁常绿矮林、亚热带针叶林、亚热带竹丛、亚热带灌丛草坡等,以及假苹婆、榕树林等18个群系;大峡谷自然保护区多样性植被类型具有与其独特的地形地貌相适应的特点.Grand Canyon Nature Reserve is situated at 24°28′-24°32′N and 113°6′-113°13′E, in the southwest of Ruyuan County, north Guangdong. After investigating and analyzing the flora and vegetation landscape of Grand Canyon Nature Reserve, we found that the original vegetation is diverse, which has the characteristic of transition from south semitropical to middle semitropical; that the flora composition of Grand Canyon Nature Reserve is very complicated, dominated by the troplcal-semitropical and tropical vegetation; and that the indeciduous broadleaved forest has the characters of tropical rain forest, which is rare in semitropical, such as buttress root, epiphyte, liane and trailing plants. The vegetation type is classified into 8 types and 18 communities. There is a characteristic in the reserve that the diversity of vegetation types is adapted to its particular physiognomy types.

关 键 词：景观生态学 景观特征 大峡谷 原生植被 植物区系 植被景观类型 

分 类 号：S759.92[农业科学—森林经理学]