银川平原湿地维管植物区系研究  

Study on Flora of Wetland Vascular Plants in Yinchuan Plain

作　　者：李炳玺[1] 谢应忠[1] 赖声渭[1] 李小伟[1] 

机构地区：[1]宁夏大学农学院,银川750021

出　　处：《农业科学研究》2005年第4期33-36,共4页Journal of Agricultural Sciences

摘　　要：根据野外调查结果,宁夏银川平原有湿地维管束植物48科135属242种(含变种),其中,黑三棱(Sparga-nium stoloniferum)、华水苏(Stachys riederi)、川蔓藻(Ruppia rostellata)为宁夏植物地理分布新纪录.按照吴征镒教授对中国种子植物属的分布区类型的划分,可分为12种分布区类型和7个变型,植物区系特征为单子叶植物占绝对优势,木本植物种类贫乏;区系组成复杂,温带成分占主导地位;世界广布湿地植物种建群作用明显,群落优势度高;无特有属成分,起源古老.为该区湿地生态系统的有效保护与合理利用提供理论依据.There are 242 species （variants included） of vascular plants that belong to 48 families, 135 genera in Yinchuan Plain, of which Sparganium stoloniferum （Graebn.） Buch. -Ham. Stachys riederi Chain. et Benth. and Ruppia rostellata Koach are new geographical distribution records in Ningxia. According to WuZhengyi＇s compartmentalization on the areal types of Chinese genera of seed plants, it is divided intol4 genetic areal types and 7 subtypes. The characteristics of flora are as follows： Monocotyledon dominates absolutely, wood plants are poor, and the flora composition is complicated, but the temperate elements are obvious dominant. The cosmopolitan wetland plants have significant functions in communities as dominant species. In addition, the flora is ancient in origin, and there is no especially genera. All these results provide theoretic basis for wetland ecosystem conservation and utilization in Yinchuan plain.

关 键 词：银川平原 湿地维管植物 区系特征 

分 类 号：S4[农业科学—植物保护]