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首页> 外文期刊>Wetlands >Physiognomic and Multivariate Phytosociological Analyses of a Subtropical Peat Bog Located on the Eastern Plateau in Southern Brazil
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Physiognomic and Multivariate Phytosociological Analyses of a Subtropical Peat Bog Located on the Eastern Plateau in Southern Brazil

机译：位于巴西南部东部高原的亚热带泥炭沼泽的生理学和多元植物社会学分析

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摘要

Subtropical peat bog vegetation in southern Brazil was examined using physiognomic and phytosociological approaches. The analysis included vascular (angiosperms, pteridophytes) and non-vascular species (bryophytes, mat-forming algae, lichens, macroscopic fungi). The breadth of this approach is novel among wetland studies in southern Brazil. The study examined the Banhado Amarelo peat bog (29 degrees 19'05''S, 50 degrees 08'18''W), which is located in the Brazilian highlands of Rio Grande do Sul (RS) state. Plant cover data extracted from 125 plots distributed among 13 physiognomically recognizable vegetation patches were analyzed using the Braun-Blanquet procedure. In total, 165 species were identified. Multivariate analysis distinguished four groups of patches. The distinctions among groups were particularly evident when all floristic elements were included, i.e., vascular + non-vascular species. When the peat soil in these 13 vegetation patches was analyzed, the proportional clay content of the soil was related to the distribution of patches. The integrated analysis of the Banhado Amarelo bog demonstrated the relevance of physiognomic studies to support phytosociological analyses and the importance of including all floristic elements and soil composition data in a comprehensive approach. These findings can be extended to other studies of subtropical bogs of southern Brazilian highlands that aim to conserve these important South American ecosystems.
机译：巴西利亚南部的亚热带泥炭沼泽植被已使用生理学和植物社会学方法进行了研究。分析包括维管束（附生植物，蕨类植物）和非维管物种（苔藓植物，形成垫的藻类，地衣，宏观真菌）。在巴西南部的湿地研究中，这种方法的广度是新颖的。该研究检查了位于巴西南里奥格兰德州（Rio Grande do Sul）州高地的Banhado Amarelo泥炭沼泽（南纬29度19'05′′，西纬50度08′18′′）。使用Braun-Blanquet程序分析了从分布在13个在生理上可识别的植被斑块中的125个样地中提取的植物覆盖数据。总共确定了165种。多变量分析区分了四组斑块。当包括所有植物成分，即血管+非血管物种时，各组之间的区别特别明显。分析了这13个植被斑块中的泥炭土，土壤的比例粘土含量与斑块的分布有关。 Banhado Amarelo沼泽的综合分析证明了相貌研究对支持植物社会学分析的相关性，并且以综合的方式包括所有植物区系和土壤成分数据的重要性。这些发现可以扩展到巴西南部高地亚热带沼泽的其他研究，其目的是保护这些重要的南美生态系统。

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  • 来源
    《Wetlands》 |2019年第5期|1069-1077|共9页
  • 作者

  • 作者单位

    Univ Fed Rio Grande do Sul Dept Bot Inst Biociencias Campus Vale BR-91501970 Porto Alegre RS Brazil;

    Univ Reg Blumenau Dept Ciencias Nat BR-89030903 Blumenau SC Brazil;

    Univ Fed Pelotas Dept Bot Inst Biol Campus Capao do Leao BR-96160000 Pelotas RS Brazil;

  • 收录信息 美国《科学引文索引》(SCI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Highland peat bog; Soil composition; South America; Vegetation analysis;

    机译：高地泥炭沼泽;土壤成分;南美洲;植被分析;

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