Journal
FORESTS
Volume 3, Issue 2, Pages 370-397Publisher
MDPI
DOI: 10.3390/f3020370
Keywords
biofuel; woody biomass; forest management; residue; logging; temperate forest; sustainability; CHP; greenhouse gas reduction; carbon dioxide emission; carbon sequestration
Categories
Funding
- Energy Biosciences Institute
- Direct For Biological Sciences
- Division Of Environmental Biology [1114804, 1027319] Funding Source: National Science Foundation
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Eastern forests of the US are valued both as a carbon sink and a wood resource. The amount of biomass that can be harvested sustainably from this biome for bioenergy without compromising the carbon sink is uncertain. Using past literature and previously validated models, we assessed four scenarios of biomass harvest in the eastern US: partial harvests of mixed hardwood forests, pine plantation management, short-rotation woody cropping systems, and forest residue removal. We also estimated the amount and location of abandoned agricultural lands in the eastern US that could be used for biomass production. Greater carbon storage was estimated to result from partial harvests and residue removals than from plantation management and short-rotation cropping. If woody feedstocks were cultivated with a combination of intensive management on abandoned lands and partial harvests of standing forest, we estimate that roughly 176 Tg biomass y(-1) (similar to 330,000 GWh or similar to 16 billion gallons of ethanol) could be produced sustainably from the temperate forest biome of the eastern US. This biomass could offset up to similar to 63 Tg C y(-1) that are emitted from fossil fuels used for heat and power generation while maintaining a terrestrial C sink of similar to 8 Tg C y(-1).
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