阿什河国家湿地公园野生种子植物区系分析

Floristic Analysis of Wild Seed Plant in Ashihe National Wetland Park

本研究于2018年5月-2020年9月,采用样线法,在阿什河国家湿地公园内进行野生种子植物实地调查,分析科、属及种的区系组成。结果表明,该湿地公园内共发现野生种子植物58科175属290种,禾本科(Gramineae)、菊科(Compositae)、莎草科(Cyperaceae)为优势科,薹草属(Carex)、蓼属(Polygonum)、委陵菜属(Potentilla)等为优势属。野生种子植物区系分析可知,在科水平上地理联系广泛,具有泛热带和北温带属性;属水平上表现为温带性质,与热带性质植物有一定的交集;种水平上表现为明显的温带性质,地理成分组成复杂、联系广泛,特有程度低。

In this study,a field survey was conducted using line transect method to study the flora of the wild seed plants in Ashihe National Wetland Park from May 2018 to September 2020 to analyze the floristic composition of families,genera and species.The results showed that,58 families,175 genera and 290 species of wild seed plants were found in the wetland park.Gramineae,Compositae and Cyperaceae were the dominant families.Carex,Polygonum and Potentilla were the dominant genera.According to the floristic analysis of wild seed plants,they were geographically related at the family level,showing Pan-tropical and North Temperate attributes.At the level of the genus,it had the characteristics of Temperate,and had certain intersection with tropical plants.At the species level,it was mainly temperate in nature,with complex geographical composition,extensive association and low endemic degree.