摘要
通过对分布于青藏高原东北部海拔 380 0～ 440 0m处生长的五种高山藏医药用植物结构进行的显微观察。进一步探讨青藏高原高山植物独特生理结构与自然环境间的相互影响及适应性。结果表明 :五种植物的叶表皮细胞单层 ,有的叶表面密被表皮毛 ,角质层厚 ;叶肉组织中栅栏组织均多层 ,并普遍形成发达的通气组织。这些特征是高寒地区低氧、低温、强辐射等自然条件长期作用的结果。
To study the effect between the structure of dpine plants of Qinghai-tibetan Plateau and the environment. Methods: Five species plants leaves of Tibetan medicine from 3800m to 4400m altitude in the eastnorthern part of Qinghai-Tibetan Plateau were anatomigle -lager epidermis cells, thicker cutide, epidermal hairs, well-dereloped palisade tissue and aerenchyam,. These characters are the results of adaptation for the severe lack of axygen, cold climate and high solar radiation etc.
出处
《青海草业》
2002年第3期3-5,共3页
Qinghai Prataculture
关键词
青藏高原
藏医药用植物
叶
解剖特征.
Qinghai-Tidetan Plateau
Tidetan medicinal plant
Leaves
Anatcmical characteristics
