YANG Zai-chao,XIE Fei,ZUO Jing-hui,et al.Species Composition and Distribution of Epiphytic Bryophytes on Trees and Their Debris in Yushe National Forest Park of Guizhou Province[J].Northern Horticulture,2014,38(16):77-80,81.
贵州玉舍国家森林公园树木及其残体附生苔藓植物的组成和分布特征
- Title:
- Species Composition and Distribution of Epiphytic Bryophytes on Trees and Their Debris in Yushe National Forest Park of Guizhou Province
- 文章编号:
- 1001-0009(2014)11-0077-05
- 分类号:
- Q949.35
- 文献标志码:
- A
- 摘要:
- 对贵州玉舍国家森林公园树干、腐木和凋落物附生苔藓植物进行了调查,结合多样性指数和相似性指数的计算,研究了树木及其残体附生苔藓植物分布和种间关系。结果表明:附生苔藓植物共有26科35属56种,优势科为灰藓科、指叶苔科、叉苔科和青藓科;附生苔藓植物在树干上分布最多,为40种,ShannonWiener物种多样性指数的大小顺序是树干>腐木>凋落物,南方小锦藓、钝头鳞叶藓和黄牛毛藓是该地分布最广的种类。附生苔藓植物的生活型以交织型种数最多,占总种数的44.64%。研究结果对阐明亚热带山地森林生态系统附生苔藓植物多样性分布格局和揭示森林植被健康的指示作用具有重要意义。
- Abstract:
- An investigation was conducted on species composition and distribution of epiphytic bryophytes on trucks,dead woods and litters in Yushe National Forest Park of Guizhou province.Meanwhile,the species distribution and association among trees and their debris were studied by using species diversity index and similarity index.The results showed that 56 species of epiphytic bryophytes belonging to 26 families and 35 genera were recorded,with Hypnaceae,Lepidoziaceae,Metzgeriaceae and Brachytheciaceae predominating.Host trunks had the largest number of species (40 species) among three substrate types.Shannon-Wiener species diversity index of epiphytic bryophytes order was trucks>dead woods>litters,and species distribution of epiphytic bryophytes was the most widely including Brotherella henonii,Taxiphyllum subarcuatum and Ditrichum pallidum.The most species of life-form was wefts taking up 44.64% of all epiphytic bryophytes.The results had significant implications for clarifying distribution patterns of species diversity of epiphytic bryophytes and indicative function of healthy vegetation in subtropical montane forest ecosystems.
参考文献/References:
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备注/Memo
第一作者简介:杨再超(1983-),男,博士研究生,讲师,现主要从事植物生态学等研究工作。E-mail:anzcyang@sina.com.