Bioenergy Production from Forest Biomass

Forest biomass provides a versatile source of renewable energy, encompassing logging residues, thinnings, stump wood and purpose-grown woody crops. Harvested material is converted into heat, electricity or liquid fuels through processes such as direct combustion, gasification, pyrolysis and biochemical conversion. The production chain begins with sustainable procurement, guided by best management practices to minimise soil erosion, protect water quality and retain biodiversity. Feedstock collection is followed by preprocessing—chipping, drying and pelleting—to improve handling and energy density. Conversion facilities then transform biomass into useful energy carriers, with residues sometimes utilised on-site to increase overall system efficiency. Sustainability assessments address carbon neutrality by comparing biogenic carbon uptake during forest growth with emissions released at combustion and throughout transport. When managed within ecological and harvesting limits, forest biomass can contribute to climate mitigation, rural development and energy security. Global applications range from small-scale district heating in Scandinavia to large-scale bioenergy power plants in North America and pellet exports to Europe. Ongoing challenges include balancing feedstock supply with ecosystem health, optimising logistics to reduce greenhouse-gas intensity, and integrating bioenergy within broader decarbonisation strategies.

Research from Nature Portfolio

Studies have tracked the impacts of large-scale pellet production on forest carbon stocks and structure across procurement landscapes in the eastern United States. Analysis of inventory plots over more than a decade reveals that regions supplying export markets exhibit higher live-tree carbon densities but fewer standing-dead trees and reduced soil carbon compared with areas serving domestic demand. These patterns suggest intensified management around pellet mills, with implications for long-term ecosystem function. The work highlights the necessity of continual monitoring to detect localised changes in forest composition and carbon pools, and recommends adaptive strategies to ensure that industrial demand does not outpace sustainable regrowth.

Bioenergy Production from Forest Biomass publication trend

The graph below shows the total number of articles in bioenergy production from forest biomass across all publications each year (not limited to Nature Index journals).

Technical terms

Best management practices (BMPs): Forestry guidelines designed to minimise soil disturbance, control erosion and protect water quality during harvest and transport.

Carbon neutrality: A balance in which the carbon dioxide emitted during biomass combustion is offset by the carbon sequestered during vegetation growth.

Gasification: A thermochemical process that converts solid biomass into a combustible gas mixture for heat or power generation.

Pelleting: A densification step in which chipped biomass is compressed into uniform pellets to improve storage, transport and combustion efficiency.

Short-rotation woody crops (SRWCs): Fast-growing tree species cultivated on marginal land and harvested on cycles of a few years to supply biomass feedstock.

References

1. Expansion of US wood pellet industry points to positive trends but the need for continued monitoring. Scientific Reports (2020).
2. Feasibility of satisfying projected biopower demands in support of decarbonization interventions: A spatially-explicit cost optimization model applied to woody biomass in the eastern US. Energy Economics (2024).
3. A Comparison of Forest Biomass and Conventional Harvesting Effects on Estimated Erosion, Best Management Practice Implementation, Ground Cover, and Residual Woody Debris in Virginia. Biomass (2023).
4. Environmental effects of short‐rotation woody crops for bioenergy: What is and isn't known. GCB Bioenergy (2018).