Phase 2 Lowland Heathland Survey of Wales (paper data)
Arolwg Rhostiroedd Iseldir Cymru

  • English
  • wel
  • All

National Vegetation Classification (NVC) is the basis used for the selection of Sites of Special Scientific Interest (SSSI) and is used to define Annex 1 habitats for the selection of Special Areas of Conservation (SAC) under the Habitats Directive (EU Directive 92/43). This project comprises of detailed data related to the Phase 2 plant community survey for Lowland Heath across Wales. The project covers dry and maritime heath covered by the heathland section of the NVC and wet heath covered by the section of the NVC. Two non-NVC communities the calcareous grass and heath, and shingle heath are also described. This project had three main purposes: - To provide an overview of the Welsh lowland heathland resource allowing local conservation programs particularly local Biodiversity Action Plans (BAP) partnerships, to assess and interpret their resource in a Welsh context. - To identify heathland types which are underrepresented in the SSSIs series. - To identified gaps in knowledge and highlight areas for further study.

Identification

Dynodydd
Identifier
NRW_DS109736
Teitl Amgen
Alternative Title
Laith Metadata
Metadata Language
English
Lineage

A total of 13 surveys were carried out: Anglesey (1994), West Gwynedd (1993), Gwynedd and Anglesey (1994), Pembrokeshire (1995, 1996, 1997), Rivers Ystwyth and Rheidiol, Ceredigion (1995), Gower Commons (1997), Gower, Bridgend, Vale of Glamorgan, Conwy (1998), Powys (1999), Brecknock and Carmarthenshire (2000), Ceredigion (2001) and Gower (2001). The total area of heath surveyed is approximately 4714 ha which is 35% of the total area of lowland and coastal (maritime) heathland recorded in the phase 1 habitats survey of Wales (1979- 1997). This was one of a series of major Phase 2 habitat surveys, including Countryside Council for Wales (CCW) in-house and commissioned surveys covering woodland, lowland grassland, saltmarsh and lowland peatland. The paper maps in the reports are of better quality than the GIS layer and therefore should be referred to as a more accurate source of information. Age of the data is also a limitation as habitat composition may change over time, a record of a vegetation type in the data is therefore no guarantee that it is still extant on the ground. Utilised standard Phase 2 survey methodology. Vegetation mapping and community definition followed the National Vegetation Classification (NVC). The dataset has been extensively validated and verified however problems were encountered when mapping in field which may have resulted in errors, digitisation was of poor quality and there were occasional problems with identifying community type. The species data has been digitised and entered into Recorder 6.
Dyddiad cyfeirnod y set ddata (Cyhoeddiad)
Dataset Reference Date (Publication)
2016-08-17

Temporal Extent

Begin date
1993-01-01
End date
2002-12-31
 
Categori pwnc
Topic category
  • Environment
    Environment
  • Biota
    Biota
Perchennog
Owner
  Natural Resources Wales (NRW) -
Maes-y-Ffynnon, Penrhosgarnedd, Bangor, Gwynedd, LL57 2DW, Wales
http://naturalresources.wales/?lang=en
Cychwynnwr
Originator
  Natural Resources Wales (NRW) -
Maes-y-Ffynnon, Penrhosgarnedd, Bangor, Gwynedd, LL57 2DW, Wales
http://naturalresources.wales/?lang=en
Cychwynnwr
Originator
  Countryside Council for Wales (CCW) -
Countryside Council for Wales, Maes y Ffynnon, Penrhosgarnedd, Bangor, Gwynedd, LL57 2DW
http://naturalresourceswales.gov.uk/splash?orig=/
 

Extent

Extent

Hyd
Geographic Extent
Wales (WLS)
N
W
E
S
Map representing the geographic extent of the dataset


 
 

Distribution

Dosbarthiad
Distribution

Fformat - Math a Disgrifiad
Format Type and Description
  • Documents ( )

    Specification

    [A] Each survey has a corresponding paper report. [B] All Wales species and community data are held in a paradox database which is currently being transferred to Recorder 6. This data is also available on the NBN Gateway. See Resource Locator. [C] Vegetation polygons from all surveys have been combined into an All Wales collated MapInfo table. [D] Excel spreadsheets- some original survey data collated in excel spreadsheets however not clear which survey the data comes from and records are incomplete.

Lleolwr Adnoddau
Resource Locator
View and Download Data ( WWW:LINK-1.0-http--link )
 

Quality

Ansawdd Data
Data quality

Cwmpas Ansawdd
Quality Scope
Dataset
Dataset
Cydymffurfiad
Conformity
Commission Regulation (EU) No 1089/2010 of 23 November 2010 implementing Directive 2007/2/EC of the European Parliament and of the Council as regards interoperability of spatial data sets and services
Explanation

This dataset has not been assessed for conformance to the referenced INSPIRE regulation.
Degree
false
Lineage

A total of 13 surveys were carried out: Anglesey (1994), West Gwynedd (1993), Gwynedd and Anglesey (1994), Pembrokeshire (1995, 1996, 1997), Rivers Ystwyth and Rheidiol, Ceredigion (1995), Gower Commons (1997), Gower, Bridgend, Vale of Glamorgan, Conwy (1998), Powys (1999), Brecknock and Carmarthenshire (2000), Ceredigion (2001) and Gower (2001). The total area of heath surveyed is approximately 4714 ha which is 35% of the total area of lowland and coastal (maritime) heathland recorded in the phase 1 habitats survey of Wales (1979- 1997). This was one of a series of major Phase 2 habitat surveys, including Countryside Council for Wales (CCW) in-house and commissioned surveys covering woodland, lowland grassland, saltmarsh and lowland peatland. The paper maps in the reports are of better quality than the GIS layer and therefore should be referred to as a more accurate source of information. Age of the data is also a limitation as habitat composition may change over time, a record of a vegetation type in the data is therefore no guarantee that it is still extant on the ground. Utilised standard Phase 2 survey methodology. Vegetation mapping and community definition followed the National Vegetation Classification (NVC). The dataset has been extensively validated and verified however problems were encountered when mapping in field which may have resulted in errors, digitisation was of poor quality and there were occasional problems with identifying community type. The species data has been digitised and entered into Recorder 6.
 

Keywords

Allweddair
Keywords

GEMET - INSPIRE themes, version 1.0
Math
Type
Theme
Theme

Dyfyniad
Citation

Dyddiad (Cyhoeddiad)
Date (Publication)
2008-06-01
Code
geonetwork.thesaurus.external.theme.httpinspireeceuropaeutheme-theme

Allweddair
Keywords

NRW Thesaurus
  • geographical information systems (GIS)
  • NBN Atlas
  • vegetation surveys (vegetation monitoring)(see also biologicalsurveys)
  • lowland heathland
  • heathland vegetation
  • Phase 2 Survey (Phase II)
  • paper data
  • heathland (heaths)
  • vegetation classification
  • National Vegetation Classification (NVC)
  • National Biodiversity Network [NBN]
Math
Type
Theme
Theme

Dyfyniad
Citation

Dyddiad (Cyhoeddiad)
Date (Publication)
2026-08-27
Code
geonetwork.thesaurus.local.theme.converted_nrw-keywords

Allweddair
Keywords

NRW SMNR Keywords
  • Soils (SMNR)
  • Provisioning Services (SMNR)
  • Cultural Services (SMNR)
  • Animals, Plants and Other Organisms (SMNR)
  • Ecosystem (SMNR)
  • Ecosystem Services (SMNR)
  • Sustainable Management of Natural Resources (SMNR)
  • Management Areas (SMNR)
  • Regulating Services (SMNR)
  • Soil and Land (SMNR)
  • Mountains, Moorland and Heaths (SMNR)
Math
Type
Theme
Theme

Dyfyniad
Citation

Dyddiad (Cyhoeddiad)
Date (Publication)
2024-06-26
Code
geonetwork.thesaurus.local.theme.converted_nrw-smnr-keywords
 

Spatial Reference System

Code
British National Grid (EPSG::27700)
 

Content

Gwybodaeth Cynnwys
Content Information

Proffil CNC
NRW Profile

Elfennau CNC
Custom Elements

NRW Related Title

Lowland heathland in Wales : a review and assessment of National Vegetation Classification survey data 1993 - 2002
NRW Related Title

Phase II vegetation survey of selected areas of lowland heath and related vegetation on Anglesey (1994)
NRW Related Title

Phase II/NVC Survey of lowland heaths in West Gwynedd 1993 Final Report
NRW Related Title

Gwynedd lowland heathland survey 1994 : part 1 introduction and overview
NRW Related Title

Gwynedd lowland heathland survey 1994. Part V NVC Community maps
NRW Related Title

Pembrokeshire lowland heathland survey 1995
NRW Related Title

Pembrokeshire lowland heathland survey 1996
NRW Related Title

Survey of the rivers Ystwyth and Rheidiol shingle heath sites
NRW Related Title

Lowland heathland survey of Wales. Pembrokeshire 1997
NRW Related Title

Lowland heathland survey of Wales : the Gower commons 1997
NRW Related Title

Lowland heathlands of Wales : additional sites surveyed in 1998
NRW Related Title

Lowland Heathlands of Wales : Powys, 1999
NRW Related Title

Lowland heathland survey of Wales. Brecknock and Carmarthenshire
NRW Related Title

National vegetation classification survey of lowland heathland in Wales : Ceredigion 2001
 

Constraints

Constraints

Limitations on Public Access and Use

Math o Gyfyngiad
Restriction type
Other restrictions
Other restrictions
 

Access Constraints Directive

Limitations
no limitations
 

Access Constraints Text

Other constraints

This dataset contains 'simple derived data' which is jointly owned by CCW and the Ordnance Survey in the form of vegetation polygons. CCW may release, publish or disseminate this dataset freely, providing recipients are made aware of use restrictions (see below). Data not derived from OS products have no access or use restrictions. Third party recipients may reproduce, disseminate and re-use this data free of charge in any format or medium, provided they do so accurately, acknowledging both the source and CCW's copyright, and do not use it in a misleading context. To avoid using old information, we recommend that the latest version is obtained from the original source.
 

Use Constraints

Cyfyngiadau Defnyddio
Use constraints type
Other restrictions
Other restrictions
Other constraints

© CCGC/CCW and © Crown copyright. All rights reserved. Countryside Council for Wales, 100018813 [2002].© Hawlfraint y Goron. Cedwir pob hawl. Cyngor Cefn Gwlad Cymru, 100018813 [2002]. This dataset contains 'simple derived data' which is jointly owned by CCW and the Ordnance Survey. Third parties seeking to re-use this dataset require a CCW licence. It allows reproduction, dissemination and re-use in any format or medium but only for non-commercial purposes according to the terms and conditions of the Licence. Those seeking commercial re-use require a commercial licence available from the OS.
 
 
 

Metadata

Metadata

Dynodydd Ffeil
File Identifier
4f4c4942-4343-5764-6473-313039373336 XML
Laith Metadata
Metadata Language
English
Parent Identifier
Natural Resources Wales (NRW) Species Data on the NBN Atlas

NRW_DS116805
Math o adnodd
Resource type
Dataset
Dataset
Dyddiad Metadata
Metadata Date
2026-09-28T11:07:34.638Z
Enw Safonol Metadata
Metadata Standard Name
NRW
Fersiwn Metadata
Metadata Standard Version

1.0

Pwynt Cyswllt
pointOfContact
  Natural Resources Wales (NRW) -
Maes-y-Ffynnon, Penrhosgarnedd, Bangor, Gwynedd, LL57 2DW, Wales
http://naturalresources.wales/?lang=en
 
 

Publishing Body

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