川西北高原区湿地植物区系特征及湿地群落调查初报

A Preliminary Survey on Flora and Phytocoenosium of Wetland in the Northwest Plateau of Sichuan Province

川西北高原区位于青藏高原东南缘,是长江、黄河流域重要水源涵养区。本区湿地包括草本沼泽、灌木沼泽、沼泽化草甸、河流、湖泊等多种类型,发挥着涵养水源、蓄洪防旱、调节气候、净化水质以及维持生物多样性等重要生态功能。基于在该区域调查积累的数据,本文整理出川西北高原区湿地维管植物共34科86属252种,湿地植物群落有3个植被型组、7个植被型和49个群系,区内湿地种子植物区系带有明显的温带性质,这些结果有助于川西北高原区的生物多样性研究与保护。

Located at the southeast edge of the Qinghai-Tibet Plateau,the northwest plateau area of Sichuan Province played an important role in water conservation for the Yangtze river and the Yellow River basins. In this area,a variety of wetlands types were included such as herbaceous swamp,shrub swamp,swamp meadow,rivers and lakes,which played a crucial part in water conservation,flood storage,regulating climate,purifying water quality,maintaining biodiversity,and other important ecological functions. Based on the data accumulated in field survey of this region,a total of 34 families,86 genera and252 wetland species of vascular plants and 3 vegetation type groups,7 vegetation types and 49 formations of wetland plant communities were reported in this paper. And the wetland seed flora had obvious temperate characteristics. These results were helpful for the research and conservation of biodiversity in this region.