• Media type: E-Article
  • Title: Prescribed burning, atmospheric pollution and grazing effects on peatland vegetation composition
  • Contributor: Noble, Alice; Palmer, Sheila M.; Glaves, David J.; Crowle, Alistair; Brown, Lee E.; Holden, Joseph
  • imprint: Wiley, 2018
  • Published in: Journal of Applied Ecology
  • Language: English
  • DOI: 10.1111/1365-2664.12994
  • ISSN: 0021-8901; 1365-2664
  • Keywords: Ecology
  • Origination:
  • Footnote:
  • Description: <jats:title>Abstract</jats:title><jats:p> <jats:list> <jats:list-item> <jats:p>Peatlands are valued for ecosystem services including carbon storage, water provision and biodiversity. However, there are concerns about the impacts of land management and pollution on peatland vegetation and function.</jats:p> </jats:list-item> <jats:list-item> <jats:p>We investigated how prescribed vegetation burning, atmospheric pollution and grazing are related to vegetation communities and cover of four key taxa (<jats:italic>Sphagnum</jats:italic> spp., <jats:italic>Calluna vulgaris, Eriophorum vaginatum</jats:italic> and <jats:italic>Campylopus introflexus</jats:italic>) using two datasets from a total of 2,013 plots across 95 peatland sites in the UK.</jats:p> </jats:list-item> <jats:list-item> <jats:p>Non‐metric multidimensional scaling and permutational multivariate analysis of variance showed differences in vegetation community composition between burned and unburned plots at regional and national scales.</jats:p> </jats:list-item> <jats:list-item> <jats:p>Analysis showed that burned sites had less <jats:italic>Sphagnum</jats:italic> and greater <jats:italic>C. vulgaris</jats:italic> cover on a national scale. On a regional scale, plots burned between 2 and 10 years ago had greater cover of invasive moss <jats:italic>C. introflexus</jats:italic> and less <jats:italic>E. vaginatum</jats:italic> than unburned sites.</jats:p> </jats:list-item> <jats:list-item> <jats:p>Livestock presence was associated with less <jats:italic>Sphagnum</jats:italic> and <jats:italic>C. vulgaris</jats:italic>, while atmospheric pollution was associated with less <jats:italic>Sphagnum</jats:italic>, but greater <jats:italic>C. introflexus</jats:italic> cover, and appeared to have more impact on burned sites.</jats:p> </jats:list-item> <jats:list-item> <jats:p><jats:italic>Synthesis and applications</jats:italic>. Burning, grazing and atmospheric pollution are associated with peatland vegetation composition and cover of key species, including <jats:italic>Sphagnum</jats:italic>. We suggest that, to promote cover of peat‐forming species, peatlands should not be routinely burned or heavily grazed. Current or historical atmospheric pollution may hinder peat‐forming species, particularly on burned sites.</jats:p> </jats:list-item> </jats:list> </jats:p>
  • Access State: Open Access