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Rich fens, including eutrophic tall-herb fens and calcareous flushes and soaks

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English name Rich fens, including eutrophic tall-herb fens and calcareous flushes and soaks Open code browser    Diagram icon

EUNIS habitat type code   D4.1 Level   3
Edition   EUNIS Habitat Classification 2012 - a revision of the habitat classification descriptions.

Description ( English )

Wetlands and spring-mires, seasonally or permanently waterlogged, with a soligenous or topogenous base-rich, often calcareous water supply. Peat formation, when it occurs, depends on a permanently high watertable. Rich fens may be dominated by small or larger graminoids ([Carex] spp., [Eleocharis] spp., [Juncus] spp., [Molinia caerulea], [Phragmites australis], [Schoenus] spp., [Sesleria] spp.) or tall herbs (e.g. [Eupatorium cannabinum]). Where the water is base-rich but nutrient-poor, small sedges usually dominate the mire vegetation, together with a "brown moss" carpet. Hard-water spring mires (D4.1N) often contain tufa cones and other tufa deposits. Excluded is the water body of hard-water springs (C2.1); calcareous flushes of the alpine zone are a separate category (D4.2). Rich fens are exceptionally endowed with spectacular, specialised, strictly restricted species. They are among the habitats that have undergone the most serious decline. They are essentially extinct in several regions and gravely endangered in much of central and western Europe.

Source

Hill, M.O., Moss, D. & Davies, C.E. [edited ETC/BD] (2001)

External links


Relationships with other classifications

Classification Code Title Relation type
EUNIS Habitat Classification 200410 D4.1 Rich fens, including eutrophic tall-herb fens and calcareous flushes and soaks same
EUNIS Habitat Classification 200308 D4.1 Rich fens, including eutrophic tall-herb fens and calcareous flushes and soaks same
EUNIS Habitat Classification 200202 D4.1 Rich fens, including eutrophic tall-herb fens and calcareous flushes and soaks same
EUNIS Habitat Classification 199910 D4.1 Rich fens, including eutrophic tall-herb fens and calcareous flushes and soaks same
EUNIS Habitat Classification 199811 D4.1 Rich fens, including eutrophic tall-herb fens and calcareous flushes and soaks same
EUNIS Habitat Classification 199712 D4.1 Rich fens, including eutrophic tall-herb fens and calcareous flushes and soaks same
Palaearctic Habitat Classification 200112 54.2 Rich fens same
Palaearctic Habitat Classification 199905 54.2 Rich fens same
Palaearctic Habitat Classification 1997 54.2 Rich fens same
Palaearctic Habitat Classification 1996 54.2   same
Palaearctic Habitat Classification 1993 54.2   same
CORINE Biotopes Classification 1991 54.2   same
CORINE Biotopes Classification 1989 54.2   same
CORINE Land Cover 4.1.1. Inland marshes n/a
Nordic Vegetation Classification 1994 3.4.2.1d Hard Rush-Blunt-flowered Rush variant n/a
Phase 1 habitat classification (UK) 1993 E32 Fen: basin mire overlap
Phase 1 habitat classification (UK) 1993 E32B Fen: basin mire, basic overlap
Phase 1 habitat classification (UK) 1993 E33 Fen: flood plain not defined
Phase 1 habitat classification (UK) 1993 E33B Fen: flood plain, basic not defined
Phase 1 habitat classification (UK) 1993 E22 Flush and spring: basic overlap
Milieux Naturels de Suisse 1998 2.2.3 Parvocariçaie neutro-basophile same
Biotopes of the Czech Republic 2001 R2.1 VÁPNITÁ SLATINIŠTĚ (Calcareous fens) narrower
Biotopes of Slovakia 1996 8362200 Slatiny s vysokým obsahom uhlicitanov n/a
  D Mires, bogs and fens Go to key navigator, starting with this habitat    Ancestor
  D4 Base-rich fens and calcareous spring mires Go to key navigator, starting with this habitat    Parent
EUNIS

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