秦岭及其以北黄土区草地群落地带性特征  

Features of Grassland Zones in the Qinling Mountains and Its Northern Loess Plateau.

作　　者：朱志诚[1] 岳明[1] 

机构地区：[1]西北大学生物系,陕西西安710069

出　　处：《中国草地》2001年第3期58-63,共6页Grassland of China

摘　　要：一般受海洋季风和湿润气候影响强烈的地区 ,草地垂直地带性和水平地带性基本一致。但秦岭以北及其黄土区由于受东南季风的影响减弱 ,出现了半干旱和干旱气候 ,植被向着草原方向发展 ,形成了这里特殊的地带性特征。秦岭地区自下而上为蒿类和禾草草地、禾草和杂类草草地、嵩草草地 ;秦岭以北黄土区自南而北为蒿类和禾草草地 (草甸性 )、禾草 (草原性 )和蒿类草地 。In regions strongly influenced by maritime monsoon and moist air current, the vertical zonality of grassland coincides basically with horizontal zonality of grassland. But in loess region of north of the Qinling Mountains, the influence of maritime climate is weak, there appears semi arid and arid climate, forming the features of special vegetation zones. Grassland from the foot to top of the Qinling Mountain are as follows: Artemisia and gramineous grassland, Gramineous and weedy grassland, Kobresia grassland. In the loess regoin of north of the Qinling Mountains, the grassland from south to north are as follows: Artemisia and gramineous grassland (meadow nature), gramineous (steppe nature) and Artemisia grassland. The area of Artemisia and gramineous grassland is widest.

关 键 词：秦岭 黄土区 草地群落 地带性特征 垂直地带性 水平地带性 

分 类 号：S812[农业科学—草业科学] Q948.15[农业科学—畜牧学]