Ключевые слова: agriculture, biomass, birch, birch firewood, copse, countryside, cut, deforestation, development, ecology, energy, environment, firewood, forestry, fuel, growth, hardwood, landscape, ligneous, log, logging, lumber, manufacture, material, natural, nature, outdoors, pile, pine, power, renewable, resource, sawed, softwood, stack, stacked, sunny, sustainable, timber, timbered, tree, trunk, wood, wooden, woodland,