Producing, Characterizing and Quantifying Biochar in the Woods Using Portable Flame Cap Kilns

Area of Science:

• Forestry
• Soil Science
• Environmental Science

Background:

• Non-commercial forest biomass utilization is challenging due to its dispersed nature.
• Current slash disposal via burn piles negatively impacts forest soil and lacks ecological benefits.
• Fire suppression has reduced pyrogenic carbon in forest soils, impacting soil health.

Purpose of the Study:

• To document a low-cost, portable method for onsite forest biomass conversion to biochar.
• To incorporate quantification and characterization techniques for biochar production.
• To align with methodologies for carbon removal certificates and greenhouse gas (GHG) benefit quantification.

Main Methods:

• Utilizing portable biochar kilns operated by hand crews with water quenching.
• Implementing simple quantification and characterization of produced biochar.
• Describing the CM002 Component Methodology for GHG benefit assessment across biomass sourcing, production, and application stages.

Main Results:

• Demonstrated a practical method for onsite biochar production from forest biomass.
• Integrated techniques for quantifying biochar yield and properties.
• Established a framework for measuring GHG benefits aligned with carbon removal standards.

Conclusions:

• Onsite biochar production offers ecological advantages over traditional burn piles, enhancing soil health and water retention.
• This method provides a pathway for returning missing pyrogenic carbon to forest soils.
• The documented process and methodology support eligibility for carbon removal finance, promoting climate change mitigation.