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首页> 外文学位 >Invasive species in an alvar ecosystem: A soil seed bank study and in situ vegetation surveys studying the effects of Euphorbia cyparissias on the Burnt Lands Nature Reserve (Ontario).
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Invasive species in an alvar ecosystem: A soil seed bank study and in situ vegetation surveys studying the effects of Euphorbia cyparissias on the Burnt Lands Nature Reserve (Ontario).

机译：阿尔法生态系统中的入侵物种：土壤种子库研究和原地植被调查，研究大戟蓝花对烧土自然保护区（安大略省）的影响。

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摘要

In-situ vegetation surveys and a greenhouse soil seed bank study were conducted on the Burnt Lands Nature Reserve alvar located in Almonte, Ontario. The purpose of this study was to assess the effects of invasive alien plant species, particularly Euphorbia cyparissias, on native alvar plant communities in both the surface vegetation and at the soil seed bank level. Sixty plots were established randomly where vegetation surveys were conducted and soil samples were collected for the soil seed bank study. Spearman's Rank correlation analyses were applied to the percent crown closure of Euphorbia cyparissias in relation to soil depth, soil type, nutrient levels, above ground plant diversity and soil seed bank diversity. Results showed no statistically significant relations between measured variables and the presence or absence of Euphorbia cyparissias in the field.
机译：在安大略省阿尔蒙特市的Burnd Lands自然保护区alvar进行了现场植被调查和温室土壤种子库研究。这项研究的目的是评估外来入侵植物物种，特别是大戟（Euphorbia cyparissias），对地表植被和土壤种子库水平上的原生alvar植物群落的影响。随机建立了60个样地，进行了植被调查，并收集了土壤样本用于土壤种子库研究。 Spearman's Rank相关分析应用于大戟蓝冠冠封闭百分比，涉及土壤深度，土壤类型，养分含量，地上植物多样性和土壤种子库多样性。结果表明，在实地测量的变量与大戟大戟的存在与否之间没有统计学上的显着关系。

著录项

  • 作者

    Riley, Teresa Lynn.;

  • 作者单位

    Carleton University (Canada).;

  • 授予单位 Carleton University (Canada).;
  • 学科 Physical Geography.; Biology Ecology.
  • 学位 M.Sc.
  • 年度 2005
  • 页码 106 p.
  • 总页数 106
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 自然地理学;生态学（生物生态学）;
  • 关键词

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