若尔盖辖曼－阿西高原沼泽自然保护区沼泽植物特征

若尔盖沼泽是世界上著名的高寒沼泽。我们对此地的纳勒乔沼泽、纳洛乔沼泽和哈丘湖附近的沼泽植物进行了考察。这里的沼泽植物共61种,隶属44属,21科。以莎草科、禾本科、菊科、毛莨科为主。沼泽植物的地理成分表明此地的植被偏向温带性质。苔草属是主要的沼泽植物。木里苔草、毛果苔草、乌拉苔草、藏蒿草、双柱头藨草为优势种。沼泽植物的生活型分为湿生植物、挺水植物、浮叶植物、沉水植物。沼泽植物群落包括9种类型。最后,作者建议将木里苔草、狸藻群落,木里苔草、条叶垂头菊群落,毛果苔草、睡莱群落,毛果苔草、狸藻群落列为重点保护的自然群落。

SOME CHARACTERS ON THE BOG PLANTS OF XIAMAN AND AXI PLATEAU BOG NATURE RESERVE OF ZOIGE, CHINA

Zoige cold mires are botanically wellknown in China. Bog plants of three small areas, Naliqiao, Naloqiao, and nearby Haqionhu, in this region have been explored by authors. The native flora of the areas comprises 21 families and 44 genera with 61 species. Main genera are ones of Cyperaceae, Graminaceae, Compositae and Ranunculaceae, of which Carex of Cyperaceae predominates. The analysis of geographical elements of bog plants shows that the vegetation in the areas has affinities to temperate vegetation. In the areas there are 9 bog communities, of which Carex muliensis, C. meyeriana, Kobresia tibetica and Scirpus distigmaticus are dominant. Life form of bog plants may be divided into hygrophytes, emersed plant, floating leaf plant and submerged plant. Finally the authors suggested that the following communities: Carex muliensis Utricularia vulgaris, Carex muliensis Cremanathalium lineare, Carex lasiocarpa Meneanthes trifolia should be specially protected.