Figures on UK wood production (or removals) are compiled from a variety of sources:
Forestry Commission (FC)/Forest Service (FS) administrative records - for all removals from FC/FS woodlands;
the Private Sector Softwood Removals Survey - for softwood removals from non-FC/FS woodlands and
statistics on deliveries - for total hardwood removals.
The compilation of data on wood production was extended in 2004 to include Northern Ireland.
These sources cover removals of roundwood (trunk and branch wood) only. A new survey was introduced in 2009 to collect data on removals of brash (branch wood and leaf material) and stumps (above-ground base part of trees).
The software used to record Forestry Commission sales has included some sales of mixed softwood and hardwood as softwood in previous years.
Further information on administrative sources can be found at: www.forestry.gov.uk/forestry/infd-832ey5
Figures for removals from FC/FS woodlands are converted from cubic metres (m3) to green tonnes using standard conversion factors. For total softwood figures, the results from the Private Sector Softwood Removals Survey are combined with the data for FC/FS woodlands to produce total softwood removals.
For hardwood figures, the total hardwood removals are assumed to equal the total hardwood deliveries (obtained from industry surveys and industry associations; see subsequent pages for further information on these sources). Hardwood removals from FC/FS woodlands are then subtracted to give an estimate of the amount of hardwood removed from non-FC/FS woodlands.
Softwood removals methodology change
The methodology used to estimate the quantity of UK softwood removals from woodland that is not owned or managed by the Forestry Commission (in Great Britain) or the Forest Service (in Northern Ireland) has been revised since "Forestry Statistics 2011" and was first implemented for the release of provisional 2011 estimates in "UK Wood Production and Trade: 2011 provisional figures". Details of the change in methodology and its impact on the figures are available in the "Methodology Review of Softwood Removals from Non-FC/FS Woodland" paper, available at: www.forestry.gov.uk/pdf/rem_methodology_rev2011-12.pdf/$FILE/rem_methodology_rev2011-12.pdf
Non-FC/FS softwood removals are subject to revision annually (see note on the Private Sector Softwood Removals Survey). Removals from FC/FS woodlands are not normally revised. Total hardwood removals (and consequently hardwood removals from non-FC/FS woodlands) are subject to annual revisions (see notes on deliveries for further information).
Figures for 2011 are final; provisional figures were previously released in "UK Wood Production and Trade: 2011 provisional figures".
Figures for earlier years have not been revised from those provided in "UK Wood Production and Trade: 2011 provisional figures". Information on revisions made since "Forestry Statistics 2011" are provided in "UK Wood Production and Trade: 2011 provisional figures".
Figures for removals of softwood brash and stumps in 2011 are not presented in this report, to avoid disclosing results for individual respondents. Estimates for 2010 are available in "Forestry Statistics 2011".
Figures are published as UK totals. Country breakdowns (England, Wales, Scotland, Northern Ireland) are also published for softwood in table 2.2 for non-FC/FS removals and table 2.3 for FC/FS removals. Approximate country breakdowns are also estimated for hardwood removals.
Longer time series, presenting estimates of FC/FS and non-FC/FS removals by country and by softwood/hardwood are available from the Timber Statistics web page at www.forestry.gov.uk/forestry/infd-7aql5b.
Provisional figures for 2012 will be released on 16 May 2013 in "UK Wood Production and Trade: 2012 provisional figures".
Final figures for 2012 will be released on 26 September 2013 in "Forestry Statistics 2013" and "Forestry Facts & Figures 2013".