Identification

Title

UKCEH Land Cover Plus: Hedgerows 2016-2021 (England)

Abstract

This dataset contains a model of the extent and height class of woody linear features on field boundaries in England, including hedgerows, tree lines and semi-natural thickets of shrubs and trees. The model was derived from processing of the Environment Agency lidar product (National Lidar Programme), captured in 2016-2021, and the linework is consistent with the polygon boundaries used in the UK Centre for Ecology & Hydrology (UKCEH) Land Cover Map (LCM). Due to expected low densities of woody linear features, and potential uncertainty, areas excluded from the coverage include LCM classes of mountain/moor/heath, open water and the coastal zone, urban/suburban areas and woodlands (i.e., areas of continuous non-linear woody cover). An area of approximately 24 x 25 km on the North Yorkshire Moors was also excluded from the model, as this area was not mapped by the EA lidar. Full details about this dataset can be found at https://doi.org/10.5285/d90a3733-2949-4dfa-8ac2-a88aef8699be

Resource type

dataset

Resource locator

https://order-eidc.ceh.ac.uk/resources/4H4C3HCF/order

description: Download a copy of this data

function: order

https://data-package.ceh.ac.uk/sd/d90a3733-2949-4dfa-8ac2-a88aef8699be.zip

description: Supporting information available to assist in re-use of this dataset

function: information

Unique resource identifier

code

https://catalogue.ceh.ac.uk/id/d90a3733-2949-4dfa-8ac2-a88aef8699be

codeSpace

doi:

Dataset language

eng

Spatial reference system

code identifying the spatial reference system

Classification of spatial data and services

Topic category

environment

biota

Keywords

Keyword set

keyword value

Land Cover

originating controlled vocabulary

title

GEMET - INSPIRE themes, version 1.0

reference date

date type

publication

effective date

2008-06-01

Geographic location

West bounding longitude

-6.452

East bounding longitude

1.768

North bounding latitude

55.812

South bounding latitude

49.864

Temporal reference

Temporal extent

Begin position

2016-01-01

End position

2021-12-31

Dataset reference date

date type

publication

effective date

2024-01-16

Frequency of update

Quality and validity

Lineage

This model was produced by collating Environment Agency airborne lidar data, Land Cover Map (LCM) linear data, and Ordnance Survey (OS) data. The lidar data were filtered and pixels were removed based on their attributes and coincidence with OS data (masking). Vectorized output was used to classify a linear framework of the LCM, creating a classified polyline model of linear features. The model was validated by ‘ground-truthing’ against 38 test squares of 1 km^2 each, which were surveyed on the ground by trained fieldworkers in 2022 using Countryside Survey methods. The results showed good agreement between the lidar model and the ground-truthing, allowing for a spatial buffer tolerance around features to account for the different linear frameworks they were based upon. At the summary scale across all test squares, the total woody feature lengths showed a 96% agreement. At the scale of individual test squares, there was an average 76% agreement of woody feature lengths within a 20 m buffer tolerance. Height classifications of the model showed an exact agreement for 32% of the total feature length, and 63% agreement within a tolerance of one class above or below.

Conformity

Conformity report

specification

title

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

reference date

date type

publication

effective date

2010-12-08

degree

explanation

Data format

name of format

Shapefile

version of format

Constraints related to access and use

Constraint set

Limitations on public access

Controlled

Constraint set

Limitations on public access

Bespoke licensing conditions apply to these data. If you choose to download the data, the UKCEH Data Licensing team will contact you to negotiate a licence.

Constraint set

Limitations on public access

If you reuse this data, you should cite: Broughton, R.K., Burkmar, R., McCracken, M., Mitschunas, N., Norton, L.R., Pallett, D.W., Patton, J., Redhead, J.W., Staley, J.T., Wood, C.M., Pywell, R.F. (2024). UKCEH Land Cover Plus: Hedgerows 2016-2021 (England). NERC EDS Environmental Information Data Centre https://doi.org/10.5285/d90a3733-2949-4dfa-8ac2-a88aef8699be

Responsible organisations

Responsible party

organisation name

email address

enquiries@ceh.ac.uk

responsible party role

pointOfContact

Responsible party

organisation name

email address

enquiries@ceh.ac.uk

web address

https://orcid.org/0000-0002-6838-9628

description: ORCID is an open, non-profit, community-driven effort to create and maintain a registry of unique researcher identifiers and a transparent method of linking research activities and outputs to these identifiers.

function: information

responsible party role

author

Responsible party

organisation name

email address

enquiries@ceh.ac.uk

responsible party role

author

Responsible party

organisation name

email address

enquiries@ceh.ac.uk

web address

https://orcid.org/0000-0002-8298-8838

function: information

responsible party role

author

Responsible party

Lancaster Environment Centre, Library Avenue, Bailrigg

Lancaster

LA1 4AP

email address

info@eidc.ac.uk

web address

https://eidc.ac.uk/

description: The Environmental Information Data Centre (EIDC) is the UK's national data centre for terrestrial and freshwater sciences.

function: information

responsible party role

pointOfContact

Metadata date

2025-04-28T12:18:48

Metadata language

eng