Nodweddion morfa heli ACA Pen Llyn a'r Sarnau- Dyfi 1993
Use of the National Vegetation Classification (NVC) as a basis for community definition in the saltmarsh habitats of Pen Llyn a'r Sarnau - Dyfi 1993. Dyfi Junction saltmarsh survey.
The main objective of the survey was to use the National Vegetation Classification to describe and map the unusual brackish water saltmarsh communities as well as characterising some of the transitional vegetation types and the glycophytic communities present.
- Dull adnabod
- Rhychwant
- Dosbarthiad
- Ansawdd
- Allweddeiriau
- System Cyfeirio Gofodol
- Cynnwys
- Cyfyngiadau
- Cynnal a chadw
- Metadata
Dull adnabod
- Dynodydd
- NRW_DS109889
- Teitl Amgen
-
- NVC Phase 2 survey of the Dyfi 1993
- Laith Metadata
- English
- Datganiad
-
Standard NVC survey methodology. All the homogenous stands of different maritime vegetation were identified and mapped. A 4m2 quadrat was then used to estimate the cover abundance (Domin scale) of all taxa found within selected stands of each vegetation type. Computer software package Vespan II was used to store and handle the quadrat data. Data collected by trained personnel, digitised by contractors, validated by NRW, corrections made by contractors, validated again by NRW, corrections made in-house in conjunction with relevant salt marsh specialist. NRW commissioned survey which contributes to an NVC Saltmarsh survey collation.
- Dyddiad cyfeirnod y set ddata (Cyhoeddiad)
- 1993-12-31
Rhychwant
Rhychwant
- Hyd
- Wales (WLS)
))
Maint Fertigol
- Maint allweddair MEDIN
-
benthic boundary layer
Dosbarthiad
Dosbarthiad
- Fformat - Math a Disgrifiad
-
-
Geographic Information System
(
)
- Math
-
a) GIS products- Vegetation polygons (MapInfo Table) - Site Boundaries (MapInfo Table) - Survey Boundary (MapInfo Table) - Vegetation NVC summaries (MapInfo Table)
-
Documents
(
)
- Math
-
b) Paper report
-
Geographic Information System
(
)
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
-
This dataset has not been assessed for conformance to the referenced INSPIRE regulation.
- Gradd
- false
- Datganiad
-
Standard NVC survey methodology. All the homogenous stands of different maritime vegetation were identified and mapped. A 4m2 quadrat was then used to estimate the cover abundance (Domin scale) of all taxa found within selected stands of each vegetation type. Computer software package Vespan II was used to store and handle the quadrat data. Data collected by trained personnel, digitised by contractors, validated by NRW, corrections made by contractors, validated again by NRW, corrections made in-house in conjunction with relevant salt marsh specialist. NRW commissioned survey which contributes to an NVC Saltmarsh survey collation.
Allweddeiriau
Allweddair
- Math
- Theme
Dyfyniad
- Dyddiad (Cyhoeddiad)
- 2008-06-01
Allweddair
-
NRW Thesaurus
-
- vegetation surveys (vegetation monitoring)(see also biologicalsurveys)
- vegetation classification
- Pen Llyn a'r Sarnau SAC
- National Vegetation Classification (NVC)
- Special Areas of Conservation (SAC) (see also Candidate Special Areas of Conservation cSAC)
- vegetation (see also specific types eg.coastal or heathland vegetation and vegetation surveys)
- Dyfi (Dovey)
- Math
- Theme
Dyfyniad
- Dyddiad (Cyhoeddiad)
- 2025-01-08
Allweddair
-
SeaDataNet Parameter Discovery Vocabulary
- Math
- Theme
Dyfyniad
- Dyddiad (Cyhoeddiad)
- 2024-06-19
System Cyfeirio Gofodol
Cynnwys
Gwybodaeth Cynnwys
Proffil CNC
Elfennau CNC
- Teitlau cysylltiedig CNC
-
Pen Llyn a'r Sarnau cSAC and adjacent areas salt marshes review and National Vegetation Classification survey 2003 : main report
Cyfyngiadau
Cyfyngiadau
Cyfyngiadau ar Fynediad a Defnydd Cyhoeddus
- Math o Gyfyngiad
- Other restrictions
Cyfarwyddeb Cyfyngiadau Mynediad
- Cyfyngiadau
- no limitations
Testun cyfyngiadau mynediad
- Cyfyngiadau eraill
-
The following data is considered OS derived data and is therefore jointly owned by NRW and the Ordnance Survey. NRW may release, publish or disseminate this data freely; providing recipients are made aware of use restrictions (See general use restrictions).
Defnyddiwch gyfyngiadau
- Cyfyngiadau Defnyddio
- Other restrictions
- Cyfyngiadau eraill
-
© CNC/NRW and © Crown copyright [1993]. All rights reserved. Natural Resources Wales, AC0000849444. Third parties seeking to re-use this data require a Licence issued by NRW. It allows re-use, reproduction and dissemination 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
-
Contains Natural Resources Wales information © Natural Resources Wales and Database Right. All rights Reserved. Contains Ordnance Survey Data. Ordnance Survey Licence number AC0000849444. Crown Copyright and Database Right
Metadata
Metadata
- Dynodydd Ffeil
- 4f4c4942-4343-5764-6473-313039383839 XML
- Laith Metadata
- English
- Dynodydd Rhiant
-
Phase 2 Saltmarsh Survey of Wales
NRW_DS108800
- Math o adnodd
- Dataset
- Dyddiad Metadata
- 2026-03-03T12:00:54.788Z
- Enw Safonol Metadata
- NRW
- Fersiwn Metadata
-
1.0