Fuelwood consumption and supply patterns, tree-planting practices, and farm forestry in rural Zimbabwe

agroforesteria agroforesterie agroforestry arbre bois bois de chauffage consumo de energia demand demanda demande developing countries energy consumption energy policies energy resources energy sources environnement fuelwood madera medio ambiente oferta offre plantaciones plantations rendement rendimiento rural areas supply trees wood yields zimbabwe zonas rurales zone rurale