黑河流域中游水生维管植物群落及其生态特征研究

Studies on the aquatic vascular plant communities and ecological characteristics in Heihe valley

黑河流域中游位于河西走廓中段 ,界于东经 90°2 0′～ 1 0 2°1 2′,北纬 37°2 8′～ 39°57′。经调查有 1 1种水生植物群落 :线叶眼子菜群落 ( Co.Potamogeton pusillus)、线叶眼子菜—狐尾藻群落 ( Co.P.pusillus- Myriophyllum spicatum)、水菖蒲群落 ( Co.Acorus calamus)、沼针蔺群落 ( Co.Eleocharis valleulosa)、沼针蔺—水葱群落 ( Co.E.valleulosa- Scirpus triqueter)、芦苇群落 ( Co.Phragmites communis)、镳草—水烛群落 ( Co.Scirpus triqueter)、浮叶眼子菜群落( Co.Potamogeton natans)、浮叶眼子菜—狐尾藻群落 ( Co.P.natans- Myriophyllumverticillatum )、黑三棱群落 ( Co.Sparganium stoloniferum)、小花灯芯草—泽泻群落 ( Co.Juncua articulatus- Alisma orientale)。在以上群落中有水生植物 38种。世界淡水广布群落是本区的主要群落 ,阐述了水生植物群落的形态特征、分布现状、生长环境和群落结构等特征并探讨了其演替规律。

Heihe valley located in 90°20′~102°12′E,37°28′~39°57′N.There are 12 aquatic plant communities in the area.They are Co. Potamogeton pusillus ,Co. P.pusillus Myriophyllum spicatum ,Co. Acorus calamus ,Co. Eleocharis valleulosa ,Co. E.valleulosa Scirpus triqueter ,Co. Phragmites communis ,Co. Scirpus triqueter ,Co. Potamogeton natans ,Co. P.natans Myriophyllum verticillatum ,Co. Sparganium stoloniferum and Co. Juncua articulatus Alisma orientale .The above communities contain 38 species of aquatic vascular plants.The morphological character,nature distribution region,habitat,structure and succession of the plant communities are discussed in this paper.