Skip to Main Content
Soil greenhouse gas, carbon content, and tree growth response to biochar amendment in western United States forestsAuthor(s): Jessica L. Sarauer; Deborah S. Page‐Dumroese; Mark D. Coleman
Source: GCB Bioenergy. 11: 660-671.
Publication Series: Scientific Journal (JRNL)
Station: Rocky Mountain Research Station
Download Publication (469.0 KB)
DescriptionRestoring overstocked forests by thinning and pyrolyzing residual biomass produces biochar and other value‐added products. Forest soils amended with biochar have potential to sequester carbon (C), improve soil quality, and alter greenhouse gas (GHG) emissions without depleting nutrient stocks. Yet, few studies have examined the effects of biochar on GHG emissions and tree growth in temperate forest soils. We measured GHG emissions, soil C content, and tree growth at managed forest sites in Idaho, Montana, and Oregon. We applied biochar amendments of 0, 2.5, or 25 Mg/ha to the forest soil surface. Flux of carbon dioxide and methane varied by season; however, neither were affected by biochar amendment. Flux of nitrous oxide was not detected at these nitrogen‐limited and unfertilized forest sites. Biochar amendment increased soil C content by 41% but did not affect tree growth. Overall, biochar had no detrimental effects on forest trees or soils. We conclude that biochar can be used harmlessly for climate change mitigation in forests by sequestering C in the soil.
- You may send email to firstname.lastname@example.org to request a hard copy of this publication.
- (Please specify exactly which publication you are requesting and your mailing address.)
- We recommend that you also print this page and attach it to the printout of the article, to retain the full citation information.
- This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.
CitationSarauer, Jessica L.; Page‐Dumroese, Deborah S.; Coleman, Mark D. 2019. Soil greenhouse gas, carbon content, and tree growth response to biochar amendment in western United States forests. GCB Bioenergy. 11: 660-671.
Keywordscarbon dioxide, conifer, methane, overstocking, recalcitrant soil carbon, thinning
- Promoting revegetation and soil carbon sequestration on decommissioned forest roads in Colorado, USA: A comparative assessment of organic soil amendments
- Life cycle analysis of biochar [Chapter 3]
- Linkage of mike she to wetland-dndc for carbon budgeting and anaerobic biogeochemistry simulation
XML: View XML