老里克湖植物多样性

Vegetation Diversity in Laolike Lake

老里克湖分布有29科41属48种植物,以7种莎草科植物为优势种,其中,乌拉草(Carex meyeriana)为主要物种,其数量约占总数的79.9%。青姬木(Andromeda polifolia)是老里克湖的特异物种,在长白山其它高山湿地中都未见到该物种,这可能与老里克湖的特殊环境有关。各样方植物群落的Pielou均匀度指数和辛普森多样性指数很相似,但是,其物种丰富度和Shannon-Wiener多样性指数明显不同,各样方的物种丰富度可能主要受小地形和植物群落分布格局的影响。

There were 48 species of plants in Laolike Lake, which belonged to 29 families and 41 genera. The7 species of Cyperaceae family were the dominant ones. Among them, Carex meyeriana was the main species,which took up about 79.9% of total species. Andromeda polifolia was a peculiar species in Laolike Lake and has never been found in the other wetlands in Changbai Mountains. This was likely to be related to the special environment of Laolike Lake. The trends of Pielou evenness index of plant communities at various sampling plots were similar to those of Simpson diversity index, but their species richness and Shannon-Wiener diversity index were significantly different. The species richness of every sampling plot was more likely to be influenced by small terrain and the distribution pattern of plant communities.