Ключевые слова: age, air quality, asset, background, beautiful, biodiversity, biomass, branch, carbon dioxide, climate, climate change, concept, conservation, deciduous, ecology, economy, ecosystem, ecosystem service, emission, energy, environment, foliage, forest, forestry, green, growth, habitat, high, leaves, material, nature, oak, oak tree, old, outdoor, plant, production, protection, quercus, renewable, resource, sky, species, stem, storage, summer, tree, vegetation, weather, wood,