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贵阳喀斯特城市墙壁苔藓植物物种多样性研究
王玮1, 王登富1,2, 王智慧3, 张朝晖1
1.贵州师范大学, 贵州省山地环境信息系统与生态环境保护重点实验室, 贵阳 550001;2.贵州师范大学, 喀斯特研究院, 贵阳 550001;3.贵州师范大学, 生命科学学院, 贵阳 550001
摘要:  为了解环境对墙壁苔藓植物的影响,采用典范对应分析方法对贵阳市照壁山墙壁苔藓植物的多样性特征及其环境影响因子进行了研究。结果表明,该区墙壁苔藓植物有9科17属45种,以凤尾藓科(Fissidentaceae)、丛藓科(Pottiaceae)、青藓科(Brachytheciaceae)、真藓科(Bryaceae)和羽藓科(Thuidiaceae)为优势科。不同生境苔藓植物的物种组成、优势种、常见种不同,墙壁上部和中部的苔藓植物优势种和常见种主要为矮丛集型,墙壁下部的优势种和常见种主要为交织型。CCA排序表明,温度和湿度是苔藓植物在墙壁上分布的主要影响因子。卷叶湿地藓(Hyophila involuta)、尖叶对齿藓(Didymodon constrictus)、长尖对齿藓(Didymodon ditrichoides)、小凤尾藓原变种(Fissidens bryoides var.bryoides)在墙壁上部、中部和下部都能很好生长。因此,在城市垂直绿化时可选择适宜的苔藓植物进行配置。
关键词:  喀斯特城市  墙壁植物  苔藓  物种多样性  典范对应分析
DOI:10.11926/jtsb.3890
分类号:
基金项目:国家自然科学基金项目(31760043,31760050)资助
Study on Diversity of Bryophytes on the Wall in Karst Urban Guiyang City
WANG Wei1, WANG Deng-fu1,2, WANG Zhi-hui3, ZHANG Zhao-hui1
1.Key Laboratory for information System of Mountainous Area and Protection of Ecological Environment of Guizhou Province;2.Institute of Karst Science;3.School of Life Sciences, Guizhou Normal University, Guiyang 550001, China
Abstract:  In order to understand the effect of environmental factors on bryophytes, the biodiversity and environmental factors of bryophytes on the wall of Zhaobishan in Guiyang City were studied by CCA. The results showed that there were 45 species of bryophytes on the wall of Zhaobishan, belonging to 9 families and 17 genera, and Fissidentaceae, Pottiaceae, Brachytheciaceae, Bryaceae, and Thuidiaceae were dominant families. The species composition, dominant species, and common species of bryophytes were different in different parts of wall. The dominant and common species of bryophytes in the upper and middle parts of wall were mainly short turfs, and those in the lower wall were mainly wefts. The analysis of CCA showed that temperature and humidity were the main factors affecting the distribution of bryophytes on the wall. Hyophila involuta, Didymodon constrictus, Didymodon ditrichoides, Fissidens bryoides var. bryoides could grow well in all parts of the wall. Therefore, it was suggested that the suitable bryophytes could be selected in the karst urban vertical greening.
Key words:  Karst urban  Wall plant  Bryophytes  Species diversity  CCA

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