Re-vegetation processes in cutaway peat production fields in Estonia in relation to peat quality and water regime

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• 作者：Mall Orru ; Katri Ots ; Hans Orru
• 关键词：Cutaway peat fields ; Re ; vegetation ; Peat ; Water regime ; Estonia
• 刊名：Environmental Monitoring and Assessment
• 出版年：2016
• 出版时间：December 2016
• 年：2016
• 卷：188
• 期：12
• 全文大小：1,249 KB
• 刊物类别：Earth and Environmental Science
• 刊物主题：Environment
  Monitoring, Environmental Analysis and Environmental Ecotoxicology
  Ecology
  Atmospheric Protection, Air Quality Control and Air Pollution
  Environmental Management
  
• 出版者：Springer Netherlands
• ISSN：1573-2959
• 卷排序：188

文摘

Eighty-one cutaway peat production fields with a total area of about 9000 ha exist and were studied in Estonia in 2005–2015. Only a very small number of the fields (seven) have been restored—either afforested or used for growing berries. The re-vegetation of Estonian cutaway peat production fields is mainly the result of natural processes, which are generally very slow due to an unfavourable water regime or a too thin remaining peat layer. The fields are mostly covered by cotton grass and birches. Often sparse vegetation covers 15–20% of a peat field, but some fields have turned into heaths or grasslands with plant coverage up to 60%. However, due to changes in environmental (mainly hydrological) conditions and peat characteristics (mainly peat type), these areas can also be new niches for several species. A number of moss species new to or rare in Estonia, e.g. Pohlia elongata, Ephemerum serratum, Campylopus introflexus and Bryum oblongum, were recorded.