摘要
本文论述了秦岭及其以北黄土区植被地带性特征。一般受海洋季风和湿润气流影响强烈的地区,植被垂直地带性和水平地带性基本一致,但秦岭以北的黄土区,由子受东南季风的影响减弱,出现了半千早和干早气候森林植被逐渐被草原替代,形成了这里特殊的植被地带性特征。
In regions strongly influenced by maritime monsoon and moist air current, the vertical zonality of vegetation coincides basically with horizontal zonality of vegetation. But in loess region north of the Qinling Mountain, the influence of maritime climate is weak, there appears semi-arid and arid climate, forest steppe and steppe develop, forming the features of special vegetation zonality. Vegetations from the foot to the top of the Qinling Mountain are as follows: Deciduous broadleaf forest is distributed below 2200m above sea level; mixed conifer and broadleaf forest 2200 to 2600m; evergreen conifer forest 2400 to 3000m; deciduous conifer forest 2700 to 3400m; and alpine bush-meadow 3300 to 3767m. In the loess region north of the Qinling Mountain, deciduous broadleaf forest is distributed between the north foot of the Qinling Mountain to north Yanan, forest steppe between the north of Yanan to the Great Wall, steppe vegetation appears the north of the Great Wall.
出处
《地理科学》
CSSCI
CSCD
北大核心
1991年第2期157-164,共8页
Scientia Geographica Sinica
关键词
黄土区
植被
秦岭
地带性
The Qinling Mountain
The Loess Plateau
Vegetation zone
Maritime monsoon
