What our woodlands are like today – NFI inventory reports and woodland map reports

Inventory reports containing quantitative estimates of a quoted accuracy describe Britain’s ‘current’ woodland extent, structure, composition, condition, biodiversity and social use.  These are calculated by combining the measurements collected during field survey with the area and general woodland composition data derived from the NFI woodland map.

The woodland map is one of the core outputs of the NFI and represents the extent and location of all woodland over 0.5 ha in size and at least 20 m width. The map is used as the basis of statistics published by the NFI programme and in Forestry Statistics.

NFI preliminary estimates of the presence and extent of rhododendron in British woodlands

A summary report with estimates of the areas of rhododendron in British woodland based on results from the NFI field survey, and maps of the site locations where it was found.

Top 

Preliminary estimates of the changes in canopy cover in British woodlands between 2006 and 2015

This is a preliminary report on the changes in canopy cover of British woodlands between 2006 and 2015 as assessed mainly from interpretation of aerial photography and satellite imagery, but supplemented with information from other sources, including the NFI field survey. As part of the analysis of canopy cover change, the report provides estimates of areas of clearfell, restocking, woodland loss and woodland gain.

Top

Preliminary estimates of broadleaved species in British woodlands, 2011

A summary NFI report of the 2011 preliminary estimates of quantities of broadleaved species in British woodlands over 0.5 hectares in size, with special focus on ash. This includes estimates of stocked area, standing volume and numbers of trees. Later estimates are available in the 50-year hardwood forecast published 2014.

For information on the amount and distribution of ash trees outside NFI woodland see the Countryside Survey Report (Distribution of ash trees (Fraxinus excelsior) in Countryside Survey data) at http://www.countrysidesurvey.org.uk . This report includes small copses of less than 0.5 hectares, linear features containing trees less than 5 metres in width (including hedgerows and lines of trees) and individual trees (including some veterans). The extent of the top ten broadleaved tree species, including ash, in copses less than 0.5 ha is included in the Countryside Survey report.

Top

Standing timber volume for coniferous trees, 2011

A summary NFI report of the 2011 standing volume for coniferous trees for Great Britain. This includes stocked area. Later estimates are available in the 50-year softwood forecast published 2014.

Top

Estimate of biomass in live woodland trees in Britain, 2011

A summary NFI report of the 2011 biomass in live trees in British woodlands.

Top

Estimate of carbon in live woodland trees in Britain, 2011

A summary NFI report of the 2011 carbon in live trees in British woodlands.

Top

Woodland map report 2011

A set of reports summarising the results of the 2011 NFI woodland map update.

Top

Woodland map report 2010

Woodland area reports

These publications contain initial provisional statistics for woodland area as at 31 March 2010, and areas of new planting and woodland loss for 1997-98 to 2009-10. The woodland area statistics in this release make use of the 2010 NFI map and woodland grant maps for 1989-90 to 2009-10.

Woodland maps

These documents show the 2010 NFI woodland map, overlaid against a colour Ordnance Survey backdrop.

Top

Last updated: 18th August 2016