The diversity of moss on different substrates were studied by important value,species diversity index and similarity index in Baotianman,Henan.The results showed this region boasted a rich bryophyte flora which yielded 98 species belonging to 29 families and 57 genera,Herpetineuron toccoae as the dominant species,and there were 77 species growing on rock with the largest number;The diversity index decreased in turn by hosting rock,soil and trunk;The similarity index of soil and rock was the 0.722 largest of all indexes;The mat was a dominant life forms of bryophytes,which reflected good water conditions.Thus,there existed certain differences for bryophytes to adapt to different substrates,and habitat diversity was beneficial for the diversity of bryophytes.%基于宝天曼暖温带-北亚热带落叶阔叶林1.hm2样地,通过重要值、多样性指数和相似性指数等指标对样地内不同附生基质上苔藓多样性进行研究.结果表明,样地内苔藓植物共有29科57属98种,羊角藓为优势种.样地内石生苔藓物种数最多,共有77种;石生苔藓、土生苔藓和树附生苔藓的多样性指数依次减小.石生苔藓与土生苔藓的相似性系数最大,为0.722,而土生与腐木生苔藓物种相似性最低,为0.523.苔藓生活型以耐旱能力最弱的平铺型为主,反映出样地内水分状况良好,但在不同生长基质中苔藓生活型的比例存在差异.由此可见,不同苔藓对不同生长基质的适应存在一定差异,生境的多样性有助于提高苔藓的多样性.
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