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Relevance of UK Biodiversity Action Plain
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English Nature
UK Biodiversity Action Plan Mineral Industry Research Organisation
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goodquarry.com CEMEX
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Tarmac Lafarge Aggregates

Key Habitats - Reedbeds

Home > Relevance > Key Habitats > Reedbeds


 
Key Habitat

Reedbeds

Location

an RSPB priority area

Type of Mineral Extraction

  • Flood / river valley gravel
  • Others where excavation is taken below the watertable, eg, clay, sand, sand & gravel

Species
(s) = short list (m) = middle list (l) = long list
  • Phragmites australis
  • A wide distinctive breeding bird assemblage, including six nationally rare Red Data Birds:
Bittern (s)
Marsh Harrier (l)
Crane (l)
Cetti’s Warbler (l)
Savi’s Warbler (l)
Bearded Tit (l)
  • Five Red Data invertebrates
Examples of action required when Key Habitat is close
to proposed mineral working site

  • Adjoining reedbed communities are dependent on maintenance of water levels.
  • Dewatering of extraction areas must not jeopardise groundwater levels.

Opportunities during extraction

Colonisation by waders and waterfowl may start as soon as waterbodies are created within extraction areas.

Opportunities for action before and after extraction

  • Many opportunities for large stands and smaller littoral areas on edge of lakes.
  • Must ensure correct final levels so that water table is at or above ground level for most of the year.
  • Phragmites will withstand a wide range of conditions, from oligotrophic to eutrophic, but is reliant on an organic content of 30-60 per cent. It is therefore important that all organic content of topsoil stripping is maintained.
  • Many river valleys have rich deposits of organically rich alluvium and peaty deposits above the overburdens, and this should be conserved with care.
  • Continued management of the reedbeds is necessary, as it is a sub-climax community and will gradually be invaded by willow and alder carr.





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