浙江方岩丹霞地貌岩生植被群落特征分析

Structure Characteristics of Rock Plant Community on Danxia Landform in Fangyan of Zhejiang

对方岩丹霞地貌岩生植被群落组成成分和数量特征进行调查分析。结果表明:植被群落主要有方岩景天群落、佛甲草群落、江南卷柏群落、石韦群落等,各群落优势种较单一;群落物种组成丰富,共有高等植物61科103属128种;植物区系组成复杂,从科属的地理成分看,热带分布和温带分布较为平均,具有较明显的温带、亚热带性质,植被群落具有过渡性,这与该区处于亚热带的地理特点相一致。

The study of the features of rock plant eommuntiy on Mt. Fangyan The results showed that there were Sedum fangyannse Formation, Sedum lineare Formation, Sela ginella rnoellendorfii Formation, Pyrrosia lingua Formation and so on, it had proved that all the community take only 1 dominant species respectively, the floral compositions were made up of different species, its species composition was abundant, there were 128 species of higher plants in the community, belonging to 61 families and 103 genera, the floral composition was complicated. In terms of family and genus geographical elements, showed that species in tropical zones and temperate zones were almost equal, demonstrating that the flora had distinct temparate and sub-tropical features, the plant community emerge transitional, that was consistent to its geographic features.