摘要
本文根据组成森林的区系(地理)成分,着重讨论了徐家坝湿性常绿阁叶林的区系组成,森林的性质和区系起源。讨论表明组成湿性常绿阔叶林的区系以中国喜马拉雅成分为主,以西南特有种为特征和热带东南亚(印度、马来西亚)北缘成分共同组成,并在垂直结构中形成梭状图式。具亚热带和热带北缘区系特性及起源古老的特点。与邻近森林区系的关系表现出与中国喜马拉雅南部及热带东南亚北部山地森林区系更近亲。结构5层,8种层片。所有这些表明该森林是亚热带山地垂直带上部典型的常绿阔叶林。由于生态环境特殊与同类其他中山湿性常绿阔叶林不同。
According to geographical and floristic components of forest,the floristie composition,properties and origin of the moist evergreen broad leaf forest at Xujiaba have been discussed emphatically in this paper. It was shown that this forest floristics was mainly consisted of Sino-Hima-layan, characterised by the endemic species in southeast of China,and comprised together with the north border component of tropical south eastern Asia (Indo-Malasia) in the shape of shuttle shown in its diagram of vertical structure,and also had a character of ancient origin. In addition,it had a closer relation with the south of Sino-Himalayan mountain forest and north of tropical southeast Asia,which had 5 layers and eight kind of synusia. Therefore,Xujiaba forest was the typical evergreen broadleaf forest at the top of the subtropical mountain vertical belt despite of the difference in ecological environment from other same mid mountain moist evergreen broadleaf forest.
出处
《林业科学》
EI
CAS
CSCD
北大核心
1990年第5期396-401,共6页
Scientia Silvae Sinicae
基金
科学院基金资助项目内容
关键词
常绿阔叶林
区系结构
湿性
哀牢山
The Xujiaba
Evergreen broadleaf forest
Floristic structure
