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• 研究论文 •    

云南植被分布的特点及其地带规律性(续)

姜汉侨   

  1. 云南大学地植物学研究室
  • 出版日期:1980-04-25 发布日期:1980-04-25

DISTRIBUTIONAL FEATURES AND ZONAL REGULARITY OF VEGEETATONDN IN YUNNAN

Jiang Han-qiao   

  1. Laboratory of Geobotany,Yunnan University
  • Online:1980-04-25 Published:1980-04-25

摘要: 研究云南植被分布规律,分析垂直带主要植被类型及各地植被垂直带谱特征十分必要。 云南植被的复杂多样,在很大程度上是由于山地植被类型及各地植被垂直带谱的多样性所致。而且,由于全省的地势状况,各类植被的交错和过渡现象普遍,特别对各类常绿阔叶林,常常容易只注意到垂直带与水平带植被在排列顺序和群落外貌方面的相似性,而比较地忽略了二者在生境和类型特征上的差异,其结果就会将二者加以混淆,有碍于对植被分布规律的正确认识。云南山原山地连绵起伏。由南而北,随着纬度与盆地海拔高度的上升,山地的高度也相应增高。超过海拔5000米的高山集中于滇西北一角,其它大部分地区都为不超过3200米的中山。一般,在盆地四周,山地的相对高度较小;在峡谷两侧,山地相对高度较大。但是,在山地的一定高度范围内,都有形成垂直带的主要植被类型。

关键词: 植被, 分布, 特点, 规律性

Abstract: The habitat of mountains is the wettest dtle to the cloud belt and orog- rapllic rain. The vegetations of vertical zone all possess wet charactcr. The main vergetation of tropical mountains is the mountain rain forest; and the vertical zone of subtropica1 mountains is characterized by the humid evergreen broad-leaf forest.In the subtropical region, the enviroments of incised valley are very dry and hot because of the influences of a strong local up-valley air current and the foehn. The main vegetation at the bottom of the dry valley is the type of Savannah and succulent thornbush, which should be a product of the local enviroment or an azonal vegetation.

Key words: vegetation, regularity, features, Yunnan