Ancient Woodland Inventory

This dataset comprises of the boundaries of Ancient Woodland sites in Wales. Each site is categorised as either Ancient Semi Natural Woodland (ASNW), Restored Ancient Woodland Site (RAWS), Plantation on Ancient Woodland Site (PAWS) or Ancient Woodland Site of Unknown Category (AWSU). Initially all woods greater than 2 ha shown on the Ordnance Survey (OS) 1:25 000 1st Series maps surveyed between 1880 and 1960 were considered. Evidence as to which of these were ancient was provided by presence on the earlier 19th century OS 1st Edition Maps (surveyed 1805 - 1873; scale 1:63 360). The general presumption was that woodland on 1800s maps was ancient, unless there was other evidence that the wood originated between 1600AD and 1800. Supportive indications of ancient status included the wood's name, its situation in the landscape, and the nature of both the surrounding pattern of enclosure and the pattern of boundaries within the wood. Where available, field survey data such as the presence of indicator species, or other historical maps and documents were also used. In mountainous areas such as Wales the first edition Ordnance Survey 1 inch maps were hard to interpret because the heavy hatching used to indicate steep slopes tended to obscure tree symbols. The 2021 update to the ancient woodland inventory includes changes to the 2011 version resulting from the provision of additional evidence presented to NRW through public enquiries. This includes private estate maps, tithe maps, management records and photographs. The evidence has been considered by a panel of NRW experts and the inventory amended if the evidence indicates that a site has had another land use for a significant period, i.e. woodland is absent from the site in two consecutive epochs of OS historic maps, or there has been significant ground disturbance to the site, e.g. quarrying, mining or development. Amendments include removal of sites from the inventory, adjustments to boundaries or changes to the ancient woodland category of sites. The 2011 version remained static until it was replaced by the 2021 version The 2021 version is being updated at least annually as new evicence becomes available. An older 2004 version of the dataset also exists - please see metadata for dataset number NRW_DS125363 - Ancient Woodland Inventory for Wales 2004 (AWI2004) https://libcat.naturalresources.wales/folio/?oid=12536 3

Dynodydd: NRW_DS116442

Teitl Amgen

Ancient_woodland_inventory 2011.LYR
AWI 2011
Rhestr Coetiroedd Hynafol

Laith Metadata: English

Datganiad: The areas of ancient woodland with non-native trees planted on them, termed Plantations on Ancient Woodland Sites (PAWS), and those areas of ancient semi-natural woodland (ASNW) were identified and delimited by using the latest Ordnance Survey maps and field survey records. The area of each was measured using a dot grid overlay on flat projections of the 1:25 000 1st series map. The results were presented as a series of reports and maps by administrative regions (counties). As new information has been received from surveys and ad hoc informants, the initial county inventories have been revised by adding or deleting sites, or by changing the classification of the growing stock. The Ancient Woodland Inventory (AWI) identifies woodlands that have had a continuous woodland cover for centuries. Studies show that these woodlands are typically of higher nature conservation value than those that have developed recently. In the 1980s the former Nature Conservancy Council instigated the AWI, which attempted to list all ancient woodlands in Britain. A baseline date of 1600 AD was adopted because reasonable maps were available from this time (in England, at least). 1600 AD however, was an arbitrary date, and there was no clear ecological cut-off. The AWI was always considered to be provisional and subject to refinement, and never a definitive listing of the ancient, or the 'best' woods. Between 2010 and 2011 Forestry Commission Wales (FCW) and Countryside Council for Wales (CCW) commissioned a revision of the AWI in Wales comparing the existing AWI and National Forest Inventory with the Epoch 1: 1st County Series Ordnance Survey maps in terms of identification of ancient woodland. Epoch 1 County Series maps provide a more reliable and comprehensive baseline than the AWI. Moreover, the Epoch 1 maps incorporate numerous practical advantages over the AWI in terms of their ease of use, accuracy and level of detail.

Gwybodaeth ychwanegol: The maps combined with new methodology have provided a more accurate inventory which has resulted in an additional 33,000 hectares being identified as Ancient Woodland of which 5,000 is on the WGWE. Categories of Ancient Woodland identified on the AWI map: Ancient Semi-Natural Woodland (ASNW) – broadleaf woodlands comprising of mainly native tree and shrub species which have been in existence for over 400 years.

Dyddiad cyfeirnod y set ddata (Cyhoeddiad): 2023-12-12

Ystod amser

Dyddiad cychwyn: 2011-01-01

Dyddiad gorffen: 2023-12-12

Categori pwnc

Biota

Perchennog

Natural Resources Wales (NRW) -

Maes-y-Ffynnon, Penrhosgarnedd, Bangor, Gwynedd, LL57 2DW, Wales

http://naturalresources.wales/?lang=en

Cychwynnwr

Natural Resources Wales (NRW) -

Maes-y-Ffynnon, Penrhosgarnedd, Bangor, Gwynedd, LL57 2DW, Wales

http://naturalresources.wales/?lang=en

Cychwynnwr

Forestry Commission Wales -

Forestry Commission Wales, 6 Victoria Terrace, Aberystwyth, SY23 2DQ

http://www.forestry.gov.uk/wales

Cychwynnwr

Countryside Council for Wales (CCW) -

Countryside Council for Wales, Maes y Ffynnon, Penrhosgarnedd, Bangor, Gwynedd, LL57 2DW

http://naturalresourceswales.gov.uk/splash?orig=/

Rhychwant

Hyd: Wales (WLS)

Map representing the geographic extent of the dataset

Dosbarthiad

Fformat - Math a Disgrifiad

Geographic Information System ( )

Math

ESRI Feature Class

Lleolwr Adnoddau

Download Data and Web Service ( WWW:LINK-1.0-http--link )

World Wide Web page

Lleolwr Adnoddau

Web Mapping Service ( OGC:WMS )

World Wide Web page

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: The areas of ancient woodland with non-native trees planted on them, termed Plantations on Ancient Woodland Sites (PAWS), and those areas of ancient semi-natural woodland (ASNW) were identified and delimited by using the latest Ordnance Survey maps and field survey records. The area of each was measured using a dot grid overlay on flat projections of the 1:25 000 1st series map. The results were presented as a series of reports and maps by administrative regions (counties). As new information has been received from surveys and ad hoc informants, the initial county inventories have been revised by adding or deleting sites, or by changing the classification of the growing stock. The Ancient Woodland Inventory (AWI) identifies woodlands that have had a continuous woodland cover for centuries. Studies show that these woodlands are typically of higher nature conservation value than those that have developed recently. In the 1980s the former Nature Conservancy Council instigated the AWI, which attempted to list all ancient woodlands in Britain. A baseline date of 1600 AD was adopted because reasonable maps were available from this time (in England, at least). 1600 AD however, was an arbitrary date, and there was no clear ecological cut-off. The AWI was always considered to be provisional and subject to refinement, and never a definitive listing of the ancient, or the 'best' woods. Between 2010 and 2011 Forestry Commission Wales (FCW) and Countryside Council for Wales (CCW) commissioned a revision of the AWI in Wales comparing the existing AWI and National Forest Inventory with the Epoch 1: 1st County Series Ordnance Survey maps in terms of identification of ancient woodland. Epoch 1 County Series maps provide a more reliable and comprehensive baseline than the AWI. Moreover, the Epoch 1 maps incorporate numerous practical advantages over the AWI in terms of their ease of use, accuracy and level of detail.

Allweddair

GEMET - INSPIRE themes, version 1.0

Math: Theme

Dyfyniad

Dyddiad (Cyhoeddiad): 2008-06-01

Cod: geonetwork.thesaurus.external.theme.httpinspireeceuropaeutheme-theme

Allweddair

NRW Thesaurus

private woodlands
woodland ecology
woodland (woodlands)
broadleaves (broadleaved woodland)
semi-natural woodland
small woodland
FORESTRY/WOODLANDS
native woodland
deciduous woodland
ancient woodland (ancient trees) (veteran trees)

Math: Theme

Dyfyniad

Dyddiad (Cyhoeddiad): 2024-06-13

Cod: geonetwork.thesaurus.local.theme.converted_nrw-keywords

Allweddair

NRW SMNR Keywords

Ecosystem Services (SMNR)
Management Areas (SMNR)
Ecosystem (SMNR)
Woodlands (SMNR)
Sustainable Management of Natural Resources (SMNR)
Provisioning Services (SMNR)
Supporting Services (SMNR)
Animals, Plants and Other Organisms (SMNR)
Natural Resources (Incl. Features and Processes) (SMNR)
Energy (SMNR)

Math: Theme

Dyfyniad

Dyddiad (Cyhoeddiad): 2024-06-19

Cod: geonetwork.thesaurus.local.theme.converted_nrw-smnr-keywords

Cod: British National Grid (EPSG::27700)

Gwybodaeth Cynnwys

Proffil CNC

Elfennau CNC

Teitlau cysylltiedig CNC: Amendments to the Ancient Woodland Inventory for England 4 February 1997 - 13 February 1998

Teitlau cysylltiedig CNC: Amendments to the Ancient woodland inventory for England 29 February 1996 - 4 February 1997

Teitlau cysylltiedig CNC: Amendment to the Ancient woodland inventory for England July 1994 - February 1996

Teitlau cysylltiedig CNC: The ancient woodland inventory database and digital boundary project: an update of recent developments

Teitlau cysylltiedig CNC: Ancient Woodland inventory (provisional) England : amendments to county reports up to June 1994

Teitlau cysylltiedig CNC: Ancient woodland inventory : database documentation

Teitlau cysylltiedig CNC: Identifying ancient woodland in Wales - the role of the Ancient Woodland Inventory, historical maps and indicator species

Cyfyngiadau

Cyfyngiadau ar Fynediad a Defnydd Cyhoeddus

Math o Gyfyngiad: Other restrictions

Cyfarwyddeb Cyfyngiadau Mynediad

Cyfyngiadau: no limitations

Testun cyfyngiadau mynediad

Cyfyngiadau eraill: There are no access restrictions on this data. NRW may release, publish or disseminate it freely.

Defnyddiwch gyfyngiadau

Cyfyngiadau Defnyddio: Other restrictions

Cyfyngiadau eraill: © CNC/NRW Data may be re-used under the terms of the Open Government Licence providing it is done so, acknowledging both the source and NRW's copyright. It is the recipient's responsibility to ensure the data is fit for the intended purpose.

Datganiad Priodoli

Cyfyngiadau eraill: Open Government Licence (OGL)

Math o Drwydded

Cyfyngiadau eraill: Open Government Licence (OGL)

Metadata

Dynodydd Ffeil: 4f4c4942-4343-5764-6473-313136343432 XML

Laith Metadata: English

Math o adnodd: Dataset

Dyddiad Metadata: 2024-06-24T10:32:13.882Z

Enw Safonol Metadata: NRW

Fersiwn Metadata: 1.0

Pwynt Cyswllt

Natural Resources Wales (NRW) -

Maes-y-Ffynnon, Penrhosgarnedd, Bangor, Gwynedd, LL57 2DW, Wales

http://naturalresources.wales/?lang=en

Corff Cyhoeddi

Mynediad i'r Porth

Mynediad llawn i'r porth a'r metadata.

Ancient Woodland Inventory

Dull adnabod

Ystod amser

Rhychwant

Rhychwant

Dosbarthiad

Dosbarthiad

Ansawdd

Ansawdd Data

Allweddeiriau

Allweddair

Dyfyniad

Allweddair

Dyfyniad

Allweddair

Dyfyniad

System Cyfeirio Gofodol

Cynnwys

Gwybodaeth Cynnwys

Proffil CNC

Elfennau CNC

Cyfyngiadau

Cyfyngiadau

Cyfyngiadau ar Fynediad a Defnydd Cyhoeddus

Cyfarwyddeb Cyfyngiadau Mynediad

Testun cyfyngiadau mynediad

Defnyddiwch gyfyngiadau

Datganiad Priodoli

Math o Drwydded

Metadata

Metadata

Corff Cyhoeddi