四川省红原县水生植物群落调查

STUDY OF COMMUNITIES OF AQUATIC VASCULAR PLANTS IN HONGYUAN COUNTY OF SICHUAN PROVINCE

红原县位于青藏高原东缘，约界于３０°５１＇～３３°２０＇Ｎ，１０１°５１＇～１０３°２１＇Ｅ之间，调查了１２种水生植物群落：木里苔草群落、帕米尔苔草群落、水木贼群落、曲轴黑三棱群落、沿沟单群落、草群落、睡菜群落、楔叶蓼群落、穗花狐尾藻群落、菹草群落、龙须眼子菜群落和沼生水马齿群落。在以上群落中，有水生植物４５种，世界分布和北温带分布的群落类型是此区的主要群落类型。

Hongyuan County is located in east margin region of Qinghai-Xizhang Plateau, and located in 31°5l'～33°20'N, 101°51'～103°2l'E, 12 aquatic plant communities distribut in the area. They are Co,Carex muliensis,Co. Carex pamirensis,Co. Equisetum flaviatile,Co Sparganium stoloniferum,Co.Catabrosa aquatica,Co.Beckmannia syziachne,Co.Myriophyllum spicatum, Co. Potamogeton crispus,Co. Potamogeton pectinatus, Co. Callitriche palustris. The above communities contain 45 species of aquatic vascular plants,North Temperate communities are main community in the area.