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31 March accounts Agency alder Alice Holt assessment assets Audit B.Sc beech beetle biodiversity biological birch Brasier Britain British broadleaved Broadmeadow clearfelling climate conifer coppice Corsican pine cost damage deer density dieback Dutch elm disease Ecology and Management ecosystems Edinburgh effects England Environment environmental established European evaluation Evans Figure Forest Ecology Forest Enterprise forest management Forest Research Forestry Commission fungus genetic grey squirrels growth habitat Halladale Head of Branch Head of Station Heterobasidion annosum impact improved increase insects International Kerr Moffat monitoring native woodlands natural regeneration nitrogen Northern Research Station Norway spruce pathogen Pathology pests Phytophthora plantation planting Plate plots pollution poplar population potential Pratt predict programme Redfern Report risk root sample Scotland Scots pine seedlings shelter short rotation coppice Silviculture Sitka spruce soil stand stump treatment survey sycamore timber upland vegetation Wales wood Woodland and Trees yield models