Identification

Title

Phase 2 Lowland Grassland Survey of Wales

Alternative title(s)

Phase II Lowland Grassland Survey of Wales

Arolwg Glaswelltiroedd Iseldirol Cymru Cam 2

PH2 Lowland Grassland mospolys 2020.lyr

PH2 Lowland Grassland notes line 2020.lyr

PH2 Lowland Grassland notes point 2020.lyr

PH2 Lowland Grassland notes polygon 2020.lyr

PH2 Lowland Grassland notes text 2020.lyr

PH2 Lowland Grassland photos 2020.lyr

PH2 Lowland Grassland quadrats 2020.lyr

PH2 Lowland Grassland sites 2020.lyr

PH2 Lowland Grassland veg 2020.lyr

Abstract

This project comprised of a detailed survey of plant communities in semi-natural lowland grassland vegetation across Wales. The purpose of this data capture was to characterise the semi-natural lowland grassland vegetation of Wales and to provide a systematic conservation assessment of the sites surveyed. The survey locations and sites vary in size and complexity from small uniform hay-meadows of less than 1 ha, to extensive wet-dry pasture systems covering over 100 ha. The datasets which were produced from this project have been extensively validated and verified. However, the main limitation of these datasets is their age. Habitat composition may change over time due to successional trends, agricultural treatments or even planned developments, which means that there is no guarantee that the information within these datasets is still representative on the ground today. However they do provide an important long-term catalogue of data which can be used to monitor changes to the grassland environments overtime. The dataset contributes to JNCC's UK Lowland Grassland Database, held by the Lowland Grassland Lead Co-ordination Network at EN in Peterborough. The original Phase 2 Grassland Survey datasets (1987 – 2004) have now been put into a folder called Archive and the whole dataset has been updated with new and re-mapped sites. These now have the suffix 2020, and cover a time period 1989 – 2018.

Resource type

dataset

Resource locator

https://datamap.gov.wales/layergroups/geonode:nrw_phase_2_grassland

name: View and Download

https://datamap.gov.wales/capabilities/layergroup/3600/?access_token=i61nd1X0RwdwAgQrGW0sqAsWxBMiwx&ows_service=wms

name: Web Service

Unique resource identifier

code

46160

codeSpace

https://naturalresources.wales

Dataset language

eng

Spatial reference system

authority code

OGP

code identifying the spatial reference system

urn:ogc:def:crs:EPSG::BNG

Additional information source

This dataset is compiled of numerous GIS layers, images and species dataset all detailed below in the contains field. This dataset is one of a series of major Phase 2 lowland habitat surveys including Countryside Council for Wales (CCW) in house and commissioned surveys covering peatland, heathland, woodland and saltmarsh.

Classification of spatial data and services

Topic category

biota

environment

Keywords

Keyword set

keyword value

Habitats and biotopes

originating controlled vocabulary

title

reference date

date type

publication

effective date

2023-08-10

Keyword set

keyword value

Nature conservation

Biodiversity

originating controlled vocabulary

title

reference date

date type

publication

effective date

2023-08-10

Geographic location

West bounding longitude

-5.77774100

East bounding longitude

-2.60886500

North bounding latitude

53.51306700

South bounding latitude

51.24082900

Extent

Extent group

authority code

title

reference date

date type

publication

effective date

2023-08-10

code identifying the extent

Wales (WLS)

Temporal reference

Temporal extent

Begin position

1987-04-01

End position

2023-06-14

Dataset reference date

date type

publication

effective date

2023-08-03

date type

revision

effective date

2004-12-31

Frequency of update

notPlanned

Quality and validity

Lineage

The sites identified for survey were identified mainly from the Phase 1 Habitat Survey. The areas surveyed included all forms of semi-natural neutral, acidic and calcareous grassland in lowland Wales, as well as wetter Molinia (purple-moor grass) and Juncus (rush) pasture communities and associated soligenous mires. Community definition follows the National Vegetation Classification (NVC). At each site, homogeneous stands of vegetation were identified, sampled with 2 x 2 m quadrats and mapped onto Ordnance Survey base maps or aerial photographs at a 1:5000 scale.

Conformity

Data format

name of format

version of format

Constraints related to access and use

Constraint set

Use constraints

© CNC/NRW All rights Reserved. Contains Ordnance Survey Data. Ordnance Survey Licence number AC0000849444. Crown Copyright and Database Right Data may be re-used under the terms of the Open Government Licence providing it is done so, acknowledging both the source and copyright of the owners. It is the recipient's responsibility to ensure the data is fit for the intended purpose. Attribution Statement: 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

Constraint set

Limitations on public access

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

Responsible organisations

Responsible party

organisation name

Natural Resources Wales (NRW)

telephone number

0300 065 3000

email address

enquiries@naturalresourceswales.gov.uk

responsible party role

owner

Responsible party

organisation name

Countryside Council for Wales (CCW)

telephone number

0300 065 3000

email address

enquiries@naturalresourceswales.gov.uk

responsible party role

originator

Metadata on metadata

Metadata point of contact

organisation name

Natural Resources Wales (NRW)

telephone number

0300 065 3000

email address

enquiries@naturalresourceswales.gov.uk

responsible party role

pointOfContact

Metadata date

2023-08-09

Metadata language