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哀牢山中山湿性常绿阔叶林不同生长基质苔藓 植物的组成与分布特征
Species Composition and Distribution of Bryophytes on Different Substrate Types in Middle Mountain Moist Evergreen Broad-leaved Forest in Ailao Mountains

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马文章 1   刘文耀 2 *   宋亮 2  
文摘 苔藓植物是构成山地原生常绿阔叶林结构及景观的重要组分之一,在生态系统生物多样性的维系等方面发挥重要的生态功能。本研究以云南哀牢山中山湿性常绿阔叶林为对象,对林冠树干和林下木质残体、林地及岩石表面四类不同生长基质上苔藓植物的物种分布特征进行了调查研究,并运用Kendall一致性指数计算了各生长基质上苔藓植物物种之间的相关联程度,用聚类的方法对不同生长基质上苔藓植物物种进行了分类。研究结果表明:本区山地森林具有丰富的苔藓植物,共记录141种,分属38科69属,其中林冠树干上分布的苔藓植物的物种数量最多,为94种,林地上最少,仅29种;有27种苔藓植物同时分布在这3种以上的生长基质上。通过对不同类型生长基质之间苔藓植物种间关联程度的分析,发现在微生境的尺度上,随着优势苔藓植物种类间的关联程度的增加,苔藓植物多样性呈现出逐渐减少的趋势。
其他语种文摘 As an important component in montane moist forest ecosystems,bryophyte plays key roles in sustaining biodiversity and facilitating many ecological processes.The species composition and association of bryophytes on four substrates of CWD (coarse woody debris),canopy,forest floor and rock were investigated in middle mountain moist evergreen broad-leaved forest in Ailao Mt.,Yunnan.The results showed this region boasted a rich bryophyte-flora which yielded 141 species belonging to 38 families and 69 genera,with Meteoriaceae (14 spp.)and Dicranaceae (13 spp.)predominating.27 species appeared in more than 3 types of substrates.Host trunk had the largest number of species (94 spp.)among all substrate types.It found that there was a trend of bryophyte diversity decreased with increase of species association among dominant species of bryophyte at the level of microhabitat,based on the analysis of species association on different substrates in the natural forest.
来源 植物分类与资源学报 ,2011,33(4):443-450 【核心库】
关键词 苔藓植物 ; 林冠 ; 生长基质 ; 种间关联 ; 哀牢山
地址

1. 中国科学院西双版纳热带植物园, 中国科学院热带森林生态学重点实验室;;中国科学院生物多样性与生物地理学重点实验室, 云南, 勐腊, 650223  

2. 中国科学院西双版纳热带植物园, 中国科学院热带森林生态学重点实验室, 云南, 勐腊, 650223

语种 中文
ISSN 2095-0845
学科 植物学
基金 国家自然科学基金 ;  中国科学院知识创新工程重要方向项目
文献收藏号 CSCD:4275015

参考文献 共 27 共2页

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引证文献 6

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