Two-pass Woody Biomass Harvesting Operations

Wood Energy March 12, 2010 Print Friendly and PDF
Jump's modified forwarder moving concentration of slash.

Case Study 1: Two-pass

One California landowning company developed a two-pass removal system in a sawtimber/biomass harvest that optimized equipment utilization and transportation logistics. In one district, Sierra Pacific Industries typically divides operations into two phases, with non-saw log material removed first and saw log harvest undertaken later. In the chipping operationn phase, the biomass component is chipped and piled independently of the skidding. The Forest Resources Association's Technical Release Decoupling Biomass/Hogfuel Chipping from Logging (07-R-28)analyzes the system in terms of logistics and equipment optimization.Made available by permission of the Forest Resources Association Inc.

Case Study 2: Two-pass, Post-harvest Entry

A Montana log trucker, John Jump Trucking, diversified into a business collecting, processing, and delivering (both to bio-energy and mulch markets) harvesting slash previously considered unmerchantable, combining technical innovation with astute market development. Forest Resources Association Technical Release Wood / Energy / Landscape Operator Tackles Slash Piles (08-R-19) reviews John Jump Trucking's business.Made available by permission of the Forest Resources Association Inc.

Case Study 3: Two-pass, Collecting Logging Residue

Mick Buell uses high-sided farm trucks, modified to handle larger loads of hogfuel, to concentrate material efficiently in large piles for subsequent re-loading and highway transport.

An Idaho logging contract has developed an innovative collection and transportation method for gathering scattered logging slash and then processing and concentrating it into volumes more easily accessed by chip vans. Mick Buell's procedure enables more efficient on-site curing, optimum configuration of biomass piles for loading, and van access. Forest Resources Association Technical Release Gathering and Transporting Hogfuel from Logging Slash (08-R-28) reviews Buell's operation. Made available by permission of the Forest Resources Association Inc.

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There are many factors that help determine the use woody biomass for energy production.  Below we consider the decision-making points involved in the process.  

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USDA / NIFA

This work is supported by the USDA National Institute of Food and Agriculture, New Technologies for Ag Extension project.