掌握河南鸡公山国家级自然保护区(简称鸡公山自然保护区)苔藓植物群落特点及区系特征,可为森林资源保护和管理提供依据。2019—2022年,在鸡公山自然保护区开展苔藓植物调查,分析群落特点和区系特征,并与国内15个代表性地点的苔藓植物区系进行比较。结果表明:1)鸡公山自然保护区苔藓植物有51科108属254种(包括240种和14变种),以藓类为主(210种)。其中,有193种为该自然保护区新记录苔藓植物;2)254种苔藓植物可划分为水生群落(22种)、石生群落(176种)、土生群落(133种)和木生群落(130种)等4种群落类型。物种数在不同海拔间差异不大,但在不同林型间变化明显。总体而言,物种多样性在核心保护区高于一般控制区;3)苔藓植物区系有10个类型,以北温带分布(38.01%)、东亚分布(28.96%)和温带亚洲分布(13.57%)为主;4)与国内15个代表性地点相比,鸡公山自然保护区苔藓植物区系与北方代表性地点的亲缘关系较近,与南方代表性地点的亲缘关系较远。鸡公山自然保护区苔藓植物种类丰富,区系具有明显的温带性质。

To investigate the characteristics of the bryophyte community and flora and provide a basis for the protection and management of the forest in Mount Jigong National Nature Reserve in Henan Province,a survey was carried out from 2019 to 2022,and the characteristics of the bryophyte community and flora were analyzed.To further understand the characteristics of the bryophyte flora in Mount Jigong National Nature Reserve,a comparative study was conducted with 15 other research sites in China.The results showed that:1)A total of 254 species(including 240 species and 14 varieties)belonging to 108 genera and 51 families of bryophytes were found in Mount Jigong National Nature Reserve,and the mosses were the dominant species(210 species).There were 193 newly recorded species of bryophytes.2)The 254 species of bryophytes could be divided into 4 communities,including the hydrophytia community(22 species),petrophytia community(176 species),geophytia community(133 species),and epixylophytia community(130 species).The number of species did not vary greatly at different altitudes but varied greatly in different forest types.The overall species diversity was higher in the core proteced zone than in the general control zone.3)There were 10 types of bryophyte flora in Mount Jigong National Nature Reserve,predominantly belonging to the North Temperate element(38.01%),East Asia element(28.96%),and Temperate Asia element(13.57%),with other elements accounting for a relatively low proportion.4)Comparing with the 15 research sites,the results showed that the bryophyte flora of Mount Jigong National Nature Reserve was the most similar to that of the northern study areas and was different from that of the southern study areas.Therefore,the bryophytes in Mount Jigong National Nature Reserve are characterized by extremely rich species and obvious temperate characteristics in the flora.