宝天曼国家级自然保护区树附生苔藓植物物种分布与环境关系研究  

Study on relationships of epiphytic bryophytes species distribution and environmental factors in Baotianman National Nature Reserve

作　　者：樊鹏振 胡永春 康曹月 刘意帆 袁志良[1] 贾宏汝 FAN Pengzhen;HU Yongchun;KANG Caoyue;LIU Yifan;YUAN Zhiliang;JIA Hongru(College of Life Sciences,Henan Agricultural University,Zhengzhou 450002,China;Henan Finance University,Zhengzhou 451464,China)

机构地区：[1]河南农业大学生命科学学院,河南郑州450002 [2]河南财政金融学院,河南郑州451464

出　　处：《河南农业大学学报》2020年第1期94-101,共8页Journal of Henan Agricultural University

基　　金：国家自然科学基金项目(U1704115);河南省高等学校青年骨干教师培养计划项目(2016GGJS-032);河南省高等学校重点科研项目(18A180011)。

摘　　要：对宝天曼国家级自然保护区1 hm 2样地内的树附生苔藓植物及相关环境因子进行调查和测定。以苔藓植物盖度为指标,应用除趋势对应分析法(detrended correspondence analysis,DCA)研究树附生苔藓植物与附生树种的关系,应用冗余分析(redundancy analysis,RDA)研究地形因子、木本植物群落特征和冠层光因子对树附生苔藓植物分布的影响。结果表明,样地内树附生苔藓植物共计56种,隶属于20科38属,其中苔类4科5属5种,藓类16科33属51种,羊角藓(Herpetineuron toccoae)为优势种;样地内共有25种240株木本植物个体附生有苔藓植物,分别占样地内木本植物总种数和总株数的31.25%和12.08%;树附生苔藓植物多附生在胸径大于15 cm的树干上且与附生树种相关性总体不明显;地形因子、木本植物群落特征和冠层光因子对苔藓植物分布的总解释量分别为6.78%、8.18%和8.80%;就单一环境因子而言,木本植物多样性对树附生苔藓植物分布的解释量最高,为5.53%。The epiphytic bryophytes and related environmental factors of the 1 hm 2 plot in Baotianman National Nature Reserve were investigated.With bryophyte coverage as the index,detrended correspondence analysis(DCA)was applied to study the relationship between epiphytic bryophytes and host species,and redundancy analysis(RDA)for the effects of topographic factors,woody plant community characteristics and canopy light factors on the distribution of epiphytic bryophytes.The results showed that:There were 56 species of epiphytic bryophytes belonging to 38 genera and 20 families in the plot,of which 5 species belonged to 4 families and 5 genera of liverworts,51 species belonged to 33 genera and 16 families of mosses,and Herpetineuron toccoae was the dominant species;There are 25 species and 240 individual woody plants that had epiphytic bryophytes in the plot,accounting for 31.25%and 12.08%of the total species and individuals of woody plants respectively;DCA revealed that the epiphytic bryophytes were polyepiphytic on tree trunks with DBH greater than 15 cm and had no obvious correlation with epiphytic tree species;The RDA results showed that the total explanations of topographic factors,woody plant community characteristics and canopy light factors for bryophyte distribution were 6.78%,8.18%and 8.80%,respectively;For single environmental factors,woody plant diversity had the highest explanation for epiphytic bryophyte distribution,up to 5.53%.

关 键 词：树附生苔藓植物 附生树种 除趋势对应分析 冗余分析 宝天曼 

分 类 号：Q948.15[生物学—植物学] Q949.35