Arolwg o lystyfiant clogwyn a llethrau arforol Penrhyn Llyn
Maritime cliff and slopes is a priority habitat within the UK Biodiversity Action Plan. Selected maritime sites on the Llyn Peninsula were surveyed, mapped and evaluated in September/October 2000 and the range of National Vegetation Classification (NVC) vegetation types present characterized. A number of sections of the UK coastline have been nominated as 'Vegetated Sea Cliffs of the Atlantic and Baltic Coasts' candidate Special Areas of Conservation under the EC Habitats Directive. This survey was undertaken as part of the former Countryside Council for Wales (CCWs) commitment to undertake research and survey in order to increase knowledge of the extent and quality of this resource. Selected maritime sites on the Llyn Peninsula: - Porth Neigwl (Hell's Mouth) - Porth Dinllaen (Borth Wen to Penrhyn Nefyn) - Porth Nefyn (Penrhyn Nefyn to Penrhyn Bodeilias) - Porth Pistyll (Penrhyn Bodeilias to the lower slopes of Carreg y Llam)
- Dull adnabod
- Rhychwant
- Dosbarthiad
- Ansawdd
- Allweddeiriau
- System Cyfeirio Gofodol
- Cynnwys
- Cyfyngiadau
- Cynnal a chadw
- Metadata
Dull adnabod
- Dynodydd
- NRW_DS110036
- Laith Metadata
- English
- Datganiad
-
Survey carried out during periods of low high tides, to allow the maximum access to the base of the cliffs. The basic recording unit was a 2 m x 2 m quadrat. For each quadrat a full species list, mean height of the vegetation, aspect, and slope were recorded. Where the slope of the cliff was very unstable, or too steep to allow access, quadrat records were made using binoculars. Soil information, grazing records and additional factors relating to disturbance were also recorded. Mapping in the field was carried out on 1:2500 computer-generated maps.
- Dyddiad cyfeirnod y set ddata (Cyhoeddiad)
- 2000-11-30
Rhychwant
Rhychwant
- Hyd
- Wales (WLS)
- Hyd
- GWYNEDD - GWYNEDD
))
Maint Fertigol
- Maint allweddair MEDIN
- benthic boundary layer
Dosbarthiad
Dosbarthiad
- Fformat - Math a Disgrifiad
-
-
Documents
(
)
- Math
-
Evidence Report in PDF or MS Word
-
Geographic Information System
(
)
- Math
-
MapInfo products- Aggregated_Areas.TAB, Quadrats.TAB and Polygons.TAB for each site surveyed.
-
Delimited
(
)
- Math
-
Excel- Tabulated quadrat data.
-
Documents
(
)
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
-
Survey carried out during periods of low high tides, to allow the maximum access to the base of the cliffs. The basic recording unit was a 2 m x 2 m quadrat. For each quadrat a full species list, mean height of the vegetation, aspect, and slope were recorded. Where the slope of the cliff was very unstable, or too steep to allow access, quadrat records were made using binoculars. Soil information, grazing records and additional factors relating to disturbance were also recorded. Mapping in the field was carried out on 1:2500 computer-generated maps.
Allweddeiriau
Allweddair
- Math
- Theme
Dyfyniad
- Dyddiad (Cyhoeddiad)
- 2008-06-01
Allweddair
-
NRW Thesaurus
-
- maritime cliffs
- Porth Dinllaen
- Porth Neigwl
- Porth Nefyn
- marine and freshwater inventory
- National Vegetation Classification (NVC)
- cliffs
- cliff habitats
- Porth Pistyll
- vegetation (see also specific types eg.coastal or heathland vegetation and vegetation surveys)
- 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
-
Vegetation survey of maritime cliff and slopes of the Llyn Peninsula 2000
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 [2000]. 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.
Metadata
Metadata
- Dynodydd Ffeil
- 4f4c4942-4343-5764-6473-313130303336 XML
- Laith Metadata
- English
- Math o adnodd
- Dataset
- Dyddiad Metadata
- 2026-03-03T11:17:38.025Z
- Enw Safonol Metadata
- NRW
- Fersiwn Metadata
-
1.0