摘要
以2009~2012年实地样方调查和前人研究资料为基础,对山西省37个自然保护区中的湿地种子植物区系和地理成分进行了研究。在山西省37个自然保护区中,共记录有湿地种子植物56科154属294种;在4个生活型中,草本植物种类最多,共有278种,占总种数的94.56%。将湿地植物的生态型划分为7类,其中,湿生植物269种,占总种数的91.5%,是山西省自然保护区中湿地种子植物的主要组成部分,沼生植物88种,水生植物74种,构成山西省自然保护区中湿地植被的建群种和优势种。在属的水平上,种子植物区系地理成分以温带分布区类型为主,共有82属,占总属数的53.25%,表明温带性质比较明显;种子植物种的区系成分中,温带分布占绝对优势,达160种,占总种数的54.42%,中国特有分布种有40种。山西省自然保护区中的湿地植物区系与温带亚洲和东亚植物区系联系最为紧密。在湿地种子植物区系中,有国家级和省级重点保护野生植物2种。
Based on the dataset form the field investigation from 2009 to 2012 and related literature, the spermatophyte flora and geographical elements of 37 natural reserves including 6 national nature reserves and all of the provincial nature reserves in Shanxi province were analyzed. In 37 natural reserves, there are 26 natural reserves for forest ecology and 11 ones for wildlife. A total of 443 quadrats were collected as well as the wetland seed plants of them were recorded. The total area of 37 nature reserves is 1.04x 10~ ha, including area of the wetlands 4.4× 10^4 ha accounting for 4.23% of the total area, among which the river and lake are the dominant types of the wetlands. There are 294 species of spermatophyte, belonging to 154 genera and 56 families in those natural reserves. They are all angiospermae, including 207 wetland dicotyledons belonging to 106 genera and 41 familimes, 87 species monocotyledons belonging to 48 genera and 15 families. In the four life forms of wetland plants, there are 6 kinds of arbors, 10 shrubs and 278 herbs accounting for 94.56% of the total species. The wetland plants are divided into 7 ecotypes, including 269 species wet plants accounting for 91.5% of the total species, which is the dominant components of the wetland plants in the reserves, there are 88 marsh plants and 74 hygrophytes, which are the edificatory and dominant species of wetland vegetations in the reserves. The widespread type is majority in the areal types of families with spermatophyte flora, totally 20 families. Most of the plants belong to temperate distribution types on the level of genus, totally 82 genera accounting for 53.25% of the total genera, it suggested the temperate types is obvious. The areal-type of seed plants is complete, among which the temperate elements are the largest in species level, up to 160 species ac- counting for 54.42% of the total species, which embodies the typical temperate zone characteristics of wetland plants in the reserve. The next is the transitional East Asia distribution and its variant, which fully reflects the characteristics of transitional zone of wetland vegetation in this region. A total of species of tropical distribu- tion and species composed mainly of tropical distribution are 23 species, which echoed tropical affinity of the wetland seed plants flora on species level .The world distribution types are more less, there are 21 species, which are mostly aquatic plants and the common typical wetland plants. There are 40 species endemism to China, which indicates the characteristic is not obvious. There are 2 species of the wetland spermatophytes belonging to national-level or provincial-level key protected wild plants. The floral element of wetland spermatophytes in the reserves in Shanxi province is most closely associated with those in Temperate Zone Asia and East Asia.
出处
《湿地科学》
CSCD
北大核心
2014年第3期299-305,共7页
Wetland Science
基金
国家环境保护公益性行业科研专项项目(201109025-03)资助
