Identification

Title

NATIONAL FOREST INVENTORY WOODLAND ENGLAND 2020

Alternative title(s)

Abstract

The National Forest Inventory (NFI) woodland map covers all forest and woodland area over 0.5 hectare with a minimum of 20% canopy cover, or the potential to achieve it, and a minimum width of 20 metres. This includes areas of new planting, clearfell, windblow and restock. The woodland map excludes all 'tarmac' roads and active railways, and forest roads, rivers and powerlines where the gap in the woodland is greater than 20 meters wide. All woodland (both urban and rural), regardless of ownership, is 0.5 hectare or greater in extent, with the exception of Assumed woodland or Low density areas that can be 0.1 hectare or greater in extent. Also, in the case of woodland areas that cross the countries borders, the minimum size restriction does not apply if the overall area complies with the minimum size. Woodland less than 0.5 hectare in extent, with the expectation of the areas above, will not be described within the dataset but will be included in a separate sample survey of small woodland and tree features. The woodland map is updated on an annual basis and the changes in the woodland boundaries use the Ordnance Survey MasterMap® (OSMM) as a reference where appropriated. The changes in the canopy cover have been identified on: • Sentinel 2 imagery taken during spring/summer 2019 and 2020 or colour aerial orthophotographic imagery available at the time of the assessment; • New planting information for the financial year 2019/2020, from grant schemes and the sub-compartment database covering the estate of Forestry England; Woodland areas, greater than 0.5 hectares, are classified as an interpreted forest type (IFT) from aerial photography and satellite imagery. Non-woodland areas, open areas greater than 0.5 hectare completely surrounded by woodland are described according to open area types. IFT categories are Conifer, Broadleaved, Mixed mainly conifer, Mixed mainly broadleaved, Coppice, Coppice with standards, Shrub, Young trees, Felled, Ground prep, Cloud \ shadow, Uncertain, Low density, Assumed woodland, Failed, Windblow. IOA categories are Open water, Grassland, Agricultural land, Urban, Road, River, Powerline, Quarry, Bare area, Windfarm, Other vegetation. For further information regarding the interpreted forest types (IFT) and the interpreted open areas (IOA) please see NFI description of attributes available on www.forestresearch.gov.uk

Resource type

dataset

Resource locator

https://data-forestry.opendata.arcgis.com/

protocol:

Unique resource identifier

code

GSDV00000843

codeSpace

EPSG

Dataset language

eng

Spatial reference system

authority code

code identifying the spatial reference system

urn:ogc:def:crs:EPSG:27700

Classification of spatial data and services

Topic category

biota

economy

environment

location

Keywords

Keyword set

keyword value

Interpreted forest type

digital woodland map

woodland inventory

woodland survey

interpreted open areas

aerial photography

England

windblow

OpenData

Keyword set

keyword value

inventory

forest management

originating controlled vocabulary

title

reference date

date type

publication

effective date

2010-01-13

Geographic location

West bounding longitude

-6.974272406255503

East bounding longitude

3.4192551408305305

North bounding latitude

56.099571807422784

South bounding latitude

49.748081779304435

Extent

Extent group

authority code

code identifying the extent

Vertical extent information

Minimum value

-100000.00

Maximum value

900719825474.10

Coordinate reference system

authority code

code identifying the coordinate reference system

Temporal reference

Temporal extent

Begin position

End position

Dataset reference date

date type

creation

effective date

2022-04-30

date type

revision

effective date

2022-04-30

Frequency of update

annually

Quality and validity

Lineage

The location and extent of all forests and woodlands (0.5 hectares and over) is stored and maintained as a digital map. The changes in the canopy cover are identified from: • Sentinel 2 imagery taken during spring/summer 2019 and 2020 or colour aerial orthophotographic imagery available at the time of the assessment; • New planting information for the financial year 2019/2020, from grant schemes and the sub-compartment database covering the estate of Forestry England; Ordnance Survey MasterMap® (OSMM) features have been used as a reference for capturing the woodland boundaries.

Conformity

Data format

name of format

Forest Research

version of format

Constraints related to access and use

Constraint set

Use constraints

Any maps produced using this data should contain the following Forestry Commission acknowledgement: “Contains, or is based on, information supplied by the Forestry Commission. © Crown copyright and database right 2022 Ordnance Survey [100021242]”.

Constraint set

Limitations on public access

No limitations

Responsible organisations

Responsible party

contact position

Inventory and Forecasting, IFOS

organisation name

Forest Research

full postal address

231 Corstorphine Road

Edinburgh

EH12 7AT

telephone number

0300 067 5000

facsimile number

email address

nfi@forestresearch.gov.uk

responsible party role

owner

Responsible party

contact position

GIS and Data Services, IFOS

organisation name

Forest Research

email address

forester.geodata@forestresearch.gov.uk

responsible party role

pointOfContact

Responsible party

organisation name

Forest Research

email address

forester.geodata@forestresearch.gov.uk

responsible party role

custodian

Metadata on metadata

Metadata point of contact

contact position

NFI GIS Manager

organisation name

Forest Research

full postal address

231 Corstorphine Road

Edinburgh

EH12 7AT

telephone number

0300 067 5244

facsimile number

email address

forester.geodata@forestresearch.gov.uk

responsible party role

pointOfContact

Metadata date

2022-06-27T14:30:28

Metadata language