High forest (a type of forest originated from seed or from planted seedlings) constitutes 45.7 per cent, while coppice (an area of woodland in which the trees or shrubs are, or formerly were, periodically cut back to ground level to stimulate growth and provide firewood or timber) accounts for the remaining 54.3 per cent. Broadleaf forests make up 81.5 per cent, of which 32.1 per cent is oak, 17.9 per cent is beech and 10.0 per cent is Carpinus, with small percentages of other broadleaf forests such as acacia, poplar, maple and willow.