Phase 2 Saltmarsh Survey of Wales
Coastal saltmarshes in the UK comprise of the upper, vegetated portions of intertidal mudflats, lying approximately between mean high water neap tides and mean high water spring tides. Saltmarshes are usually restricted to comparatively sheltered locations in five main physiographic situations: in estuaries, in saline lagoons, behind barrier islands, at the heads of sea lochs, and on beach plains. The development of saltmarsh vegetation is dependent on the presence of intertidal mudflats. Communities are additionally affected by differences in climate, the particle size of the sediment and, within estuaries, by decreasing salinity in the upper reaches. This National Vegetation Classification (NVC) Phase 2 project and corresponding datasets are a collation of mapped saltmarsh habitats across Wales. This data was collected to provide an overview of saltmarshes across Wales. In addition to this it has helped contribute towards the monitoring of Special Area of Conservation, which includes: Carmarthen Bay and Estuaries / Bae Caerfyrddin ac Aberoedd; Glannau Môn: Cors heli / Anglesey Coast: Saltmarsh; Pembrokeshire Marine / Sir Benfro Forol; Pen Llyn a`r Sarnau / Lleyn Peninsula and the Sarnau; Dee Estuary / Aber Dyfrdwy and Severn Estuary / Môr Hafren. The surveys were conducted between 1990 and 2003. The dataset has been extensively validated and verified. Data collected by trained personnel, digitised by contractors, validated by NRW KMG, corrections made by contractors, validated again by NRW KMG, corrections made in-house in conjunction with relevant salt marsh specialist.
- Dull adnabod
- Rhychwant
- Dosbarthiad
- Ansawdd
- Allweddeiriau
- System Cyfeirio Gofodol
- Cynnwys
- Cyfyngiadau
- Cynnal a chadw
- Metadata
Dull adnabod
- Dynodydd
- NRW_DS108800
- Teitl Amgen
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- PH2_Saltmarsh_Vegetation.LYR
- PH2_Saltmarsh_Target_Notes.LYR
- PH2_Saltmarsh_Surveys.LYR
- PH2_Saltmarsh_Sites.LYR
- PH2_Saltmarsh_Quadrats_font.LYR
- PH2_Saltmarsh_Photo_points.LYR
- PH2_Saltmarsh_Mosaics_none.LYR
- Arolwg Cam 2 Morfeydd Heli Cymru
- NVC Phase 2 Saltmarsh Survey of Wales
- Laith Metadata
- English
- Datganiad
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This dataset is one of a series of major Phase 2 lowland habitat surveys including former Countryside Council for Wales’ (CCW) in-house and commissioned surveys covering grassland, woodland, heathland, peatland and sand dunes. Dataset is a collation of 14 NRW commissioned NVC surveys carried out on saltmarshes across Wales. Individual surveys utilised standard NVC Phase 2 survey methodology and community definition follows the National Vegetation Classification. Habitats were mapped using GIS against either OS maps or aerial photographs. Target notes and quadrat species lists were compiled.
- Dyddiad cyfeirnod y set ddata (Cyhoeddiad)
- 2022-08-04
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Dosbarthiad
Dosbarthiad
- Fformat - Math a Disgrifiad
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Documents
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- Math
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Each individual survey has a paper report- see separate metadata entries. [A] Species data held in paradox database (plans to transfer to Recorder in 2009/2010) [B] An all Wales collated GIS product including the following spatial information: - Vegetation polygons (ArcGIS) - Mosaic information (ArcGIS) - Site Boundaries (ArcGIS) - Survey Boundary (ArcGIS) - Quadrat points (ArcGIS) - Target Note points (ArcGIS) - Photo points (ArcGIS) - Vegetation NVC summaries (MapInfo Table)
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Documents
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- Lleolwr Adnoddau
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View and Download
World Wide Web page
- Lleolwr Adnoddau
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Web Service
World Wide Web page
Ansawdd
Ansawdd Data
- Cwmpas Ansawdd
- Dataset
- Cydymffurfiad
- 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
- Eglurhad
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This dataset has not been assessed for conformance to the referenced INSPIRE regulation.
- Gradd
- false
- Datganiad
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This dataset is one of a series of major Phase 2 lowland habitat surveys including former Countryside Council for Wales’ (CCW) in-house and commissioned surveys covering grassland, woodland, heathland, peatland and sand dunes. Dataset is a collation of 14 NRW commissioned NVC surveys carried out on saltmarshes across Wales. Individual surveys utilised standard NVC Phase 2 survey methodology and community definition follows the National Vegetation Classification. Habitats were mapped using GIS against either OS maps or aerial photographs. Target notes and quadrat species lists were compiled.
Allweddeiriau
Allweddair
- Math
- Theme
Dyfyniad
- Dyddiad (Cyhoeddiad)
- 2008-06-01
Allweddair
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NRW Thesaurus
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- species inventory
- habitat surveys (habitat monitoring)
- habitat mapping
- Phase 2 Survey (Phase II)
- vegetation (see also specific types eg.coastal or heathland vegetation and vegetation surveys)
- saltmarsh (salt-marsh) (salt marsh)
- National Vegetation Classification (NVC)
- vegetation surveys (vegetation monitoring)(see also biologicalsurveys)
- vegetation classification
- Math
- Theme
Dyfyniad
- Dyddiad (Cyhoeddiad)
- 2024-06-13
Allweddair
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SeaDataNet Parameter Discovery Vocabulary
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- Habitat extent
- Math
- Theme
Dyfyniad
- Dyddiad (Cyhoeddiad)
- 2024-03-28
Allweddair
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NRW SMNR Keywords
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- Animals, Plants and Other Organisms (SMNR)
- Coastal Margins (SMNR)
- Sustainable Management of Natural Resources (SMNR)
- Sea and Coast (SMNR)
- Management Areas (SMNR)
- Soil and Land (SMNR)
- Soils (SMNR)
- Ecosystem (SMNR)
- Natural Resources (Incl. Features and Processes) (SMNR)
- Math
- Theme
Dyfyniad
- Dyddiad (Cyhoeddiad)
- 2024-06-19
System Cyfeirio Gofodol
Cynnwys
Gwybodaeth Cynnwys
Proffil CNC
Elfennau CNC
Cyfyngiadau
Cyfyngiadau
Cyfyngiadau ar Fynediad a Defnydd Cyhoeddus
- Math o Gyfyngiad
- Other restrictions
Cyfarwyddeb Cyfyngiadau Mynediad
- Cyfyngiadau
- no limitations
Testun cyfyngiadau mynediad
- Cyfyngiadau eraill
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This dataset contains 'simple derived data' which is jointly owned by NRW and the Ordnance Survey in the form of polygon GIS tables. NRW may release, publish or disseminate these components 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 NRW'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.
Defnyddiwch gyfyngiadau
- Cyfyngiadau Defnyddio
- Other restrictions
- Cyfyngiadau eraill
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© CNC/NRW and © Crown copyright. All rights reserved. Natural Resources Wales, AC0000849444 [2016]. © Hawlfraint y Goron. Cedwir pob hawl. Cyfoeth Naturiol Cymru AC0000849444 [2016] This dataset contains 'simple derived data' which is jointly owned by NRW and the Ordnance Survey in the form of polygon vector data- vegetation, site boundary and vegetation mosaic MapInfo tables. Third parties seeking to re-use this dataset require a NRW 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.
Datganiad Priodoli
- Cyfyngiadau eraill
- Open Government Licence (OGL)
Math o Drwydded
- Cyfyngiadau eraill
- Open Government Licence (OGL)
Metadata
Metadata
- Dynodydd Ffeil
- 4f4c4942-4343-5764-6473-313038383030 XML
- Laith Metadata
- English
- Math o adnodd
- Dataset
- Dyddiad Metadata
- 2024-12-09T13:10:05.265Z
- Enw Safonol Metadata
- NRW
- Fersiwn Metadata
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1.0