You may find the following links useful.
The Forestry Commission Grants for planting and managing forests.
Department for Environment, Food & Rural Affairs Grants for planting trees on farm land
English Nature Umbrella organisation overseeing the Veteran Trees Initiative
Marches Woodland Initiative Can provide grants, help and advice for managing woods in parts of Herefordshire, Worcestershire and Shropshire.
Small Woods Association Excellent body set up to help small woodland owners manage their woods. Advice, contacts and forums for debate.
The Royal Forestry Society of England and Wales National body for forest owners, workers and agents. Run visits and field trips and publish the Quaterly Journal of forestry.
The Institute of Chartered Foresters Governing body of Professional Foresters in the UK
The Association of Professional Foresters Professional body for forestry contractors and managers
Timber Growers Association Provides a forum for timber producers to air their views, pass on advice and assess new equipment etc.
The Arboricultural Association Governing body for professional arborists. Any tree surgery works should be carried out by members of the AA.
The Soil Association Advice and campaigning for organic farming and forestry and sustainable land management.
Forests Forever Campaign to promote the use of timber for building etc.
The Woodland Trust Own and manage woodlands across the UK. Main emphasis on nature conservation.