PNW-RMA analysts and scientists assess the role of management practices in regional carbon stores and flux, and quantify changes in carbon stores.
Biomass estimates from comprehensive forest inventories are essential for quantifying the amount and distribution of carbon stocks, evaluating forests as a source of sustainable fuel (biomass for energy production), and conducting research on net primary productivity.
- AB 1504 California Forest Ecosystem and Harvested Wood Product Carbon Inventory: 2006- 2015. Final Report. California Department of Forestry and Fire Protection agreement no. 7CA02025. Sacramento, CA: California Department of Forestry and Fire Protection and California Board of Forestry and Fire Protection. 390 p. - Christensen, G.A.; Gray, A.N.; Kuegler, O.; Tase, N.A.; Rosenberg. M. 2017
- Regional estimation of forest carbon flux: adding components of change to stock-difference assessments. Forest Science 60: 317-326. - Gray, Andrew N., Thomas R. Whittier, and David L. Azuma 2014
- Amount and distribution of CWD in pine ecosystems of Northwest Spain, NW Russia and NW United States. IForest 7: 53-60. - Herrero, C., Krankina, O., Monleon, V., Bravo, F. 2014
- Observation of trends in biomass loss as a result of disturbance in the conterminous U.S.: 1986-2004. Ecosystems. doi: 10.1007/s10021-013-9713-9. - Powell, Scott L.; Cohen, Warren B.; Kennedy, Robert E.; Healey, Sean P.; Huang, Chengquan. 2013
- Do carbon offsets work? The role of forest management in greenhouse gas mitigation. Science Findings 155. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station. 5 p. - Oliver, Marie; Fried, Jeremy. 2013
- Using multi-level remote sensing and ground data to estimate forest biomass resources in remote regions: a case study in the boreal forests of interior Alaska. Canadian Journal of Remote Sensing. 37(6): 596-611 - Andersen, Hans-Erik; Jacob, Strunk; Temesgen, Hailemariam; Atwood, Donald; Winterberger, Ken 2012
- Assessing the carbon consequences of western juniper (Juniperus occidentalis) encroachment across Oregon, USA. Rangeland Ecology and Management. 65(3): 223-231. - Campbell, John L.; Kennedy, Robert E.; Cohen, Warren B.; Miller, Richard F. 2012
- Using airborne LiDAR as a sampling tool for estimating forest biomass resources in the upper Tanana Valley of interior Alaska. Western Journal of Applied Forestry 26: 157-164 - Andersen, H.E., Strunk, J., Temesgen, H. 2011
- Using multilevel remote sensing and ground data to estimate forest biomass resources in remote regions: a case study in the boreal forests of interior Alaska. Canadian Journal of Remote Sensing 37: 1-16. - Andersen, H.E., Strunk, J., Temesgen, H., Atwood, D., Winterberger, K. 2011
- Forests of southeast and south-central Alaska, 2004-2008: five-year forest inventory and analysis report. Gen. Tech. Rep. PNW-GTR-835. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station. 156 p. - Barrett, Tara M.; Christensen, Glenn A., tech. eds. 2011
- Carbon stocks on forestland of the United States, with emphasis on USDA Forest Service ownership. Ecosphere. 2(1): 1-21 - Heath, Linda S.; Smith, James E.; Woodall, Christopher W.; Azuma, David L.; Waddell, Karen L. 2011
- Managing forests because carbon matters: integrating energy, products, and land management policy. Journal of Forestry. 109(7S): S7-S50. - Malmsheimer, Robert W.; Bowyer, James L.; Fried, Jeremy S.; Gee, Edmund; Izlar, Robert; Miner, Reid A.; Munn, Ian A.; Oneil, Elaine; Stewart, William C. 2011
- Estimates of live-tree carbon stores in the Pacific Northwest are sensitive to model selection. Carbon Balance and Management. 6(2): 16 p. - Melson, Susanna L.; Harmon, Mark E.; Fried, Jeremy S.; Domingo, James B. 2011
Scientists and analysts at PNW-RMA analyze forest inventory data to learn about opportunities for landscape-scale fuel treatments, including the efficacy, outcomes and economic feasibility of those treatments. They developed the BioSum analysis framework to combine inventory data and models of treatment costs, haul costs, timber volume, and treatment effectiveness to address questions about:
- Where processing facilities can be best located to utilize both 'energy wood' and merchantable timber.
- What the best treatments are for reducing different aspects of fire risk or for maximizing forest resilience.
- How much a comprehensive, landscape-wide fuel treatment effort would cost.
- The implications of landscape-scale fuel treatments for forest carbon dynamics, including carbon transferred to product pools and to bioenergy.
- Effects of management on forest carbon
Researchers at PNW-RMA are assessing the consequences of alternative management strategies on regional carbon stores and flux.
- Long-term carbon cycling
PNW-RMA scientists are using inventory and satellite data to reconstruct long-term changes in carbon stores and identify the causes of flux.
- Improving carbon estimates
PNW-RMA researchers work to improve monitoring techniques and develop improved, unbiased equations for calculating tree volume, biomass, and carbon.
- Estimating forest biomass and identifying low-intensity logging areas
PNW-RMA researchers are estimating forest biomass and identifying low-intensity logging areas by using airborne scanning lidar in the western Brazilian Amazon
- Using multi-level inventory designs
Researchers are scaling field-based estimates of forest biomass to landscape and regional levels with remote sensing and models, specifically examining losses of information with scaling-induced generalization.