Michigan Technological University
Forest wood residues are the portions of trees that remain in the forest after logging operations or after management activities such as tree thinning have taken place. Residue removals from forests are a potentially substantial source of biomass feedstock for use as biofuels. However it is important to understand more about the sustainability of residue removals and how they will affect forest recovery and nutrient availability. The scope of this project will address:
Approximately 100 forest stands within Michigan were sampled using a standardized field guideline, in order to estimate the total biomass, and carbon and nutrient contents of harvested materials for each stand (including residues removed or left on site). Each stand will be evaluated for past forest residue removal through site assessment and communication with land managers, owners, and consulting foresters. Leaf litter and soil core samples were collected to contribute to quantification of total carbon and nitrogen pools within forest stands.
Field sampling was completed for forest stands distributed across the Michigan’s Upper and Northern Lower Peninsulas. A total of 101 stands, divided roughly equally across state, industrial and non-industrial owner classes, were sampled. An analysis of aboveground biomass data and processing of soil and leaf litter samples followed.
Final Project Report: