Three types of forest stands (chestnut coppice, maritime pine stands, and poplar and willow short-rotation woody crops (SRWC)) were evaluated to determine their potential for energy production.
What are the primary energy characteristics of different tree species evaluated?The study shows that maritime pine has a mean higher heating value (HHV) of 19,366 J/g, while chestnut coppice exhibits 17,993 J/g. SRWC crops display HHVs ranging between 18,185-18,419 J/g.How does biomass quality vary between chestnut and maritime pine?Research indicates higher nitrogen and sulfur concentrations in crown biomass, which were notably higher in pine at 0.610-0.802%. The contrasts in chemical composition suggest significant implications for emissions during combustion.What role do short-rotation woody crops (SRWCs) play in energy production?SRWCs, currently covering 40 ha in Asturias, show promising energy potential with biomass yields anticipated within 3-10 years. These fast-growing species may utilize abandoned mining lands effectively for biomass energy.
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