包头黄河湿地植物区系组成与植物资源初步研究——以南海子湿地自然保护区为例

Preliminary Study on the Flora and Plant Resources in The Yellow River Wetland Nature Reserve,Baotou——Taking Nanhaizi Wetland Nature Reserve as an example

将南海子湿地作为研究包头黄河湿地的典型代表,在野外样地调查和参考已有相关资料的基础上,对南海子湿地植被的科属种的组成、区系、生活型和水分生态型等特征进行了调查和分析。主要结果如下:南海湿地自然保护区维管束植物共计52科137属208种,种子植物184种,隶属47科119属,分别占内蒙古全区种子植物的8.33%、40.17%和18.22%。植物种类较丰富,但种属多样性不高,特有现象不明显。植物区系成分复杂,以温带分布型为主。生活型以多年生草本为主,占总种数的50.54%;水分生态型以中生为主,占总种数的69.35%。保护区含有各种资源植物较多,应予以保护利用。

Nanhaizi wetland belongs to the system of the Yellow River wetlands in Baotou,which is the only wetland nature reserve at the provincial level. Nanhaizi wetland can be regarded as the typical representative of making research on the Yellow River wetlands because of its complete wetland natural resources. According to field investigation and literature references,the areal-types of families,genera and species,the geographic elements of genera,life forms and water ecotypes of plants are analyzed in Nanhaizi wetland. The results show that there are 52 families,137 genera and 208 species of vascular plant species,and there are 184 species of seed plants belonging to119 genera and 47 families,which account for 8. 33%,40. 17% and 18. 22% of total seed plants in Inner Mongolia. The plant species are abundant,but the diversity of genus and species is not high and endemism is not obvious. The floristic elements are complex. The temperate element characteristics are representative in the region.Most of the plants＇ life forms are perennial herbs,accounting for 50. 54% of total species. In water ecotype,the mesophyte accounts for 69. 35%. There are varieties of plants with high economic value in the region,which should be protected and utilized in the future.