蒙古高原岩黄芪属（Hedysarum）植物区系生态地理分布研究

蒙古高原岩黄氏植物区系地理分布的特点是在其北部渗入了北极及欧洲－西伯利亚成分（５种），在其西北部渗入了中亚东部山地成分（５种），在其南部渗入了华北成分（２种）和唐古特成分（１种）．由于长期自然选择的结果及物种生存的高度适应也有蒙古高原自身的特有种（４种）和亚特有种（１种）．蒙古高原的岩黄芪植物同华北、东西伯利亚和新疆地区的联系较紧密．

Study on Floristic Geographical Distribution of Hedysarum in Mongolian Plateau

Floristic geographical distribution of Hedysarum in Mongolian Plateau is charactered by permeation of Arctic and Europe Sibirian elements (5 species) at its northern part,East mountain of central Asian elements (5 species) at its northwestern part,Northern China elements (2 species) and Tangut element (1 species) at its southrn part.Result of longtime natural election and high living adaption there are endemic (4 species) and sub endemic (1 species) element in Mongolian Plateau. Hedysarum in Mongolian Plateau have close relation to that of Northern China,Eastern Sibiria and Xinjiang regions.