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
- Dull adnabod
- Rhychwant
- Dosbarthiad
- Ansawdd
- Allweddeiriau
- System Cyfeirio Gofodol
- Cynnwys
- Cyfyngiadau
- Cynnal a chadw
- Metadata
Dull adnabod
- 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
Rhychwant
Rhychwant
- Hyd
- Wales (WLS)
))
Dosbarthiad
Dosbarthiad
- Fformat - Math a Disgrifiad
-
-
Geographic Information System
(
)
- Math
-
ESRI Feature Class
-
Geographic Information System
(
)
- 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
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.
Allweddeiriau
Allweddair
- Math
- Theme
Dyfyniad
- Dyddiad (Cyhoeddiad)
- 2008-06-01
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
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
System Cyfeirio Gofodol
Cynnwys
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
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
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