FORESTERS are being reminded of an upcoming reduction in the maximum percentage of any one tree species allowed in all new and existing woodlands. 

From October 1, species will be limited to 65 per cent – down from 75 per cent – when the fifth edition of the UK Forestry Standard (UKFS) comes into effect. 

Forestry officials believe the move will better prepare the nation's woodlands for the future by making them more resilient to climate change, pests, and diseases. However, some have been critical of the effect the change will have on commercial timber production. 

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Speaking during Scottish Climate Week, Dr Helen McKay, chief forester for Scotland, said: “Although global and regional climate models predictions are improving, there are still big uncertainties about the weather that any given area of woodland will experience.

“The changing climate means that past performance is no longer a guarantee of future survival, growth or economic return. Therefore, relying so heavily on a limited set of species is not sensible. Broadening the range of species should reduce the risk overall.”

As well as for new woodlands that are created, the 65 per cent maximum single species will also apply to forests or woodlands that are being restocked in future years.

Other changes to the UKFS concern deer management and biosecurity

Alan Hampson, director of policy at Scottish Forestry, added: “The key to making our forests more resilient is to actively manage them.

Dr Helen McKayDr Helen McKay

“I would encourage woodland owners who do not already have a long-term management plan for their woodlands to create one, using the plan as the basis for bringing their woods into alignment with the requirements of this new version of the UK Forestry Standard."