Distribution of oak trees (Quercus sp.) in GB and Wales

This report provides estimates of Oak trees (Quercus sp.) from two national surveys covering; 1) Great Britain (including Wales), (2007) and 2) Wales only, (2013-2016). Oak tree estimates were calculated for; all woodland, all woodland areas <0.5ha in size, individual Oak trees, the extent of Oak in linear features and Oak in fixed vegetation plots. The data used in this report comes from Countryside Survey (CS) which is a unique study or ‘audit’ of the natural resources of the UK’s countryside and the Glastir Monitoring and Evaluation project (GMEP) which collected data using a similar methodology to CS across Wales to determine the impacts of the Welsh agri-environment scheme ‘Glastir’. The Countryside Survey has been carried out at regular intervals since 1978. The countryside is mapped and sampled using rigorous scientific methods, allowing us to compare new results with those from previous surveys. In this way we can detect the gradual and subtle changes that occur in the UK’s countryside over time. GMEP was carried out between 2013 and 2016 and all of the data from this period has been amalgamated.