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作 者 ：周华荣

期 刊 ：西北植物学报 1998年 4期

关键词：垂直分异；灌丛；旬河流域；植被；

Keywords:vertical difference, Brush wood, Xunhe basin,

摘 要 ：植被的生趣分异是植被生态学的重要规律之一，根据旬河流域灌丛植被分的特点，首次提出该流域灌丛垂直带的划分：（１）亚高山凉温性常绿、落叶阔叶典型灌从带（２０００－２６００ｍ）；（２）中山温性落叶阔叶典型灌丛、杂木灌丛带

Abstract:The vertical difference of vegetation is one of the important law of vegetation ecology.On the basis of the vertical difference of shrub wood vegetation in flora,growth form,origin,dominant synusia,dynamics and human impacts,three vertical zones of shrub

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