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Our research topics, each an integration of long-term and short-term approaches and questions, are described below. We study biological diversity, carbon and nutrient dynamics, climate, conservation...
Data
This study is designed to examine the effects of prescribed fire and mechanical fuel treatments on surface erosion, stream sedimentation, channel morphology, and other water...
DB Code: HS009
Study date: March 01, 2002 to September 30, 2005
Data
The Detrital Input and Removal Treatment (DIRT) Project was established to assess how rates and sources of plant litter inputs influence accumulations or losses of organic matter...
DB Code: TN021
Study date: December 01, 1999 to April 15, 2011
Publications
Publication Year: 2004
Keirstead, Heath. 2004. Quantifying C and N contents and isotope signatures of SOM pools in the H.J. Andrews DIRT plots. Corvallis, OR: Oregon State University. 77 p. M.S. thesis.
Publications
Publication Year: 2004
Nadelhoffer, Knute J.; Boone, Richard D.; Bowden, Richard D.; Canary, Jana D.; Kaye, Jason; Micks, Patricia; Ricca, Andrea; Aitkenhead, Jacqueline A.; Lajtha, Kate; McDowell, William H. 2004. The DIRT experiment: litter and root influences on forest soil organic matter stocks and function. In: Foster, David R.; Aber, John D., eds. Forests in time: the environmental consequences of 1,000 years of change in New England. New Haven, CT: Yale University Press: 300-315. Chapter 15.
Publications
Publication Year: 2012
Wig, Jennifer D. 2012. Effects of 20 Years of Litter and Root Manipulations on Soil Organic Matter Dynamics. Corvallis, OR: Oregon State University. 72 p. M.S. thesis.
Publications
Publication Year: 2013
Yarwood, Stephanie; Brewer, Elizabeth; Yarwood, Rockie; Lajtha, Kate; Myrold, David. 2013. Soil Microbe Active Community Composition and Capability of Responding to Litter Addition after 12 Years of No Inputs. Applied and Environmental Microbiology. 79(4): 1385-1392.
Publications
Publication Year: 2018
Lajtha, Kate; Bowden, Richard D.; Crow, Susan; Fekete, Istvan; Kotroczo, Zsolt; Plante, Alain; Simpson, Myrna J.; Nadelhoffer, Knute J. 2018. The detrital input and removal treatment (DIRT) network: Insights into soil carbon stabilization. Science of The Total Environment. 640-641: 1112-1120. doi:https://doi.org/10.1016/j.scitotenv.2018.05.388
Publications
Publication Year: 2009
Crow, Susan E.; Lajtha, Kate; Filley, Timothy R.; Swanston, Christopher W.; Bowden, Richard D.; Caldwell, Bruce A. 2009. Sources of plant-derived carbon and stability of organic matter in soil: implications for global change. Global Change Biology. 15(8): 1-17. doi:https://doi.org/10.1111/j.1365-2486.2009.01850.x
Research Highlights
Soil is the largest store of carbon (C) in the terrestrial biosphere, containing more than twice as much C as the atmosphere. Hence, even small changes in soil C may have a relatively large effect on...
Publications
Publication Year: 2020
Pierson, Derek. 2020. Detrital Influences on Soil Carbon Stabilization in Wet Temperate Forest Soils. Corvallis: Oregon State University. 119 p. Ph.D. dissertation.
Publications
Publication Year: 2023
Peter-Contesse, Hayley. 2023. Spatiotemporal Patterns in Soil Carbon Distribution, Persistence, and CO2 Respiration in a Pacific Northwest Montane Forest. Corvallis: Oregon State University. 113 p. Ph.D. Dissertation.