Heaths in the British National Vegetation Classification system

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This article gives an overview of the heath communities in the British National Vegetation Classification system.

Introduction[]

The heath communities of the NVC were described, along with the mire communities, in Volume 2 of British Plant Communities, first published in 1991.

In total, 22 heath communities have been identified.

The heath communities consist of six separate subgroups:

  • five lowland dry heath communities, all with distinct, largely non-overlapping distributions in England and Wales (H1, H2, H6, and )
  • three localised communities, with non-overlapping ranges in southern England, which are considered transitional between the above and the wetter communities classified in the NVC as mires (H3, H4 and H5)
  • two maritime heath communities, found exclusively on the coasts of northern and western Britain; one (H7) is more widespread than the other ()
  • four submontane heaths from upland areas in northern and western Britain; two of these ( and ) are widespread, whereas the other two ( and ) are more localised (confined to Scotland, and Scotland and the Lake District, respectively)
  • two sub-alpine communities, considered transitional between the previous and next groupings - , which is widespread in northern and western Britain), and , which is confined to Scotland
  • six montane heath communities with lichens and mosses, all of which are confined either to Scotland (, , , and ) or to Scotland and the Lake District ()

List of heath communities[]

The following is a list of the communities that make up this category:

  • H1 Calluna vulgaris - Festuca ovina heath
  • H2 Calluna vulgaris - Ulex minor heath
  • H3 Ulex minor - Agrostis curtisii heath
  • H4 Ulex gallii - Agrostis curtisii heath
  • H5 Erica vagans - Schoenus nigricans heath
  • H6 Erica vagans - Ulex europaeus heath
  • H7 Calluna vulgaris - Scilla verna heath

Sources[]

  • Rodwell, J. S. (1988) British Plant Communities Volume 2 - Mires and heaths ISBN 0-521-62720-6 pages vii, 347 - 358
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