Skip to main content
U.S. flag

An official website of the United States government

Randall Kolka

Hanson PJ, Griffiths NA, Iversen CM, Norby RJ, Sebestyen SD, Phillips JR, Chanton JP, Kolka RK, Malhotra A, Oleheiser KC, et al. Rapid Net Carbon Loss From a Whole‐Ecosystem Warmed Peatland. AGU Advances. 2020;1(3). doi:10.1029/2020av000163
View
Fernandez CW, Heckman K, Kolka RK, Kennedy PG. Melanin mitigates the accelerated decay of mycorrhizal necromass with peatland warming. Klironomos J. Ecology Letters. 2019;22(3):498-505. doi:10.1111/ele.13209
View
McPartland MY, Kane ES, Falkowski MJ, Kolka RK, Turetsky MR, Palik B, Montgomery RA. The response of boreal peatland community composition and NDVI to hydrologic change, warming, and elevated carbon dioxide. Global Change Biology. 2018;25(1):93-107. doi:10.1111/gcb.14465
View
Haynes KM, Kane ES, Potvin L, Lilleskov EA, Kolka RK, Mitchell CPJ. Gaseous mercury fluxes in peatlands and the potential influence of climate change. Atmospheric Environment. 2017;154:247-259. doi:10.1016/j.atmosenv.2017.01.049
View
Wilson RM, Hopple AM, Tfaily MM, Sebestyen SD, Schadt CW, Pfeifer-Meister L, Medvedeff CA, McFarlane KJ, Kostka JE, Kolton M, et al. Stability of peatland carbon to rising temperatures. Nature Communications. 2016;7(1). doi:10.1038/ncomms13723
View
Iversen CM, Childs J, Norby RJ, Ontl TA, Kolka RK, Brice DJ, McFarlane KJ, Hanson PJ. Fine-root growth in a forested bog is seasonally dynamic, but shallowly distributed in nutrient-poor peat. Plant and Soil. 2017;424(1-2):123-143. doi:10.1007/s11104-017-3231-z
View
Hanson PJ, Gill AL, Xu X, Phillips JR, Weston DJ, Kolka RK, Riggs JS, Hook LA. Intermediate-scale community-level flux of CO2 and CH4 in a Minnesota peatland: putting the SPRUCE project in a global context. Biogeochemistry. 2016;129(3):255-272. doi:10.1007/s10533-016-0230-8
View
Parsekian AD, Slater L, Ntarlagiannis D, Nolan J, Sebestyen SD, Kolka RK, Hanson PJ. Uncertainty in Peat Volume and Soil Carbon Estimated Using Ground‐Penetrating Radar and Probing. Soil Science Society of America Journal. 2012;76(5):1911-1918. doi:10.2136/sssaj2012.0040
View

Participant Information

Publications

2022

  1. Pierce CE, Furman OS, Nicholas SL, Wasik JC, Gionfriddo CM, Wymore AM, Sebestyen SD, Kolka RK, Mitchell CPJ, Griffiths NA, et al. Role of Ester Sulfate and Organic Disulfide in Mercury Methylation in Peatland Soils. Environmental Science & Technology. 2022;56(2):1433-1444. doi:10.1021/acs.est.1c04662
  2. Helbig M, Živković T, Alekseychik P, Aurela M, El-Madany TS, Euskirchen ES, Flanagan LB, Griffis TJ, Hanson PJ, Hattakka J, et al. Warming response of peatland CO2 sink is sensitive to seasonality in warming trends. Nature Climate Change. 2022. doi:10.1038/s41558-022-01428-z

2021

  1. Ricciuto DM, Xu X, Shi X, Wang Y, Song X, Schadt CW, Griffiths NA, Mao J, Warren JM, Thornton PE, et al. An Integrative Model for Soil Biogeochemistry and Methane Processes: I. Model Structure and Sensitivity Analysis. Journal of Geophysical Research: Biogeosciences. 2021;126(8). doi:10.1029/2019jg005468
  2. Ricciuto DM, Xu X, Shi X, Wang Y, Song X, Schadt CW, Griffiths NA, Mao J, Warren JM, Thornton PE, et al. An Integrative Model for Soil Biogeochemistry and Methane Processes: I. Model Structure and Sensitivity Analysis. Journal of Geophysical Research: Biogeosciences. 2021;126(8). doi:10.1029/2019jg005468
  3. Shelley SJ, Brice DJ, Iversen CM, Kolka RK, Sebestyen SD, Griffiths NA. Deciphering the shifting role of intrinsic and extrinsic drivers on moss decomposition in peatlands over a 5‐year period. Oikos. 2021;2022(1). doi:10.1111/oik.08584
  4. Salmon VG, Brice DJ, Bridgham SD, Childs J, Graham JD, Griffiths NA, Hofmockel KS, Iversen CM, Jicha TM, Kolka RK, et al. Nitrogen and phosphorus cycling in an ombrotrophic peatland: a benchmark for assessing change. Plant and Soil. 2021;466(1-2):649-674. doi:10.1007/s11104-021-05065-x
  5. Salmon VG, Brice DJ, Bridgham SD, Childs J, Graham JD, Griffiths NA, Hofmockel KS, Iversen CM, Jicha TM, Kolka RK, et al. Nitrogen and phosphorus cycling in an ombrotrophic peatland: a benchmark for assessing change. Plant and Soil. 2021;466(1-2):649-674. doi:10.1007/s11104-021-05065-x
  6. Wilson RM, Griffiths NA, Visser A, McFarlane KJ, Sebestyen SD, Oleheiser KC, Bosman S, Hopple AM, Tfaily MM, Kolka RK, et al. Radiocarbon Analyses Quantify Peat Carbon Losses With Increasing Temperature in a Whole Ecosystem Warming Experiment. Journal of Geophysical Research: Biogeosciences. 2021;126(11). doi:10.1029/2021jg006511
  7. Wilson RM, Tfaily MM, Kolton M, Johnston ER, Petro C, Zalman CM, Hanson PJ, Heyman HM, Kyle JE, Hoyt DW, et al. Soil metabolome response to whole-ecosystem warming at the Spruce and Peatland Responses under Changing Environments experiment. Proceedings of the National Academy of Sciences. 2021;118(25). doi:10.1073/pnas.2004192118
  8. Maillard F, Fernandez CW, Mundra S, Heckman K, Kolka RK, Kauserud H, Kennedy PG. Warming drives a ‘hummockification’ of microbial communities associated with decomposing mycorrhizal fungal necromass in peatlands. New Phytologist. 2021;234(6):2032-2043. doi:10.1111/nph.17755

2020

  1. Hanson PJ, Griffiths NA, Iversen CM, Norby RJ, Sebestyen SD, Phillips JR, Chanton JP, Kolka RK, Malhotra A, Oleheiser KC, et al. Rapid Net Carbon Loss From a Whole‐Ecosystem Warmed Peatland. AGU Advances. 2020;1(3). doi:10.1029/2020av000163
  2. McPartland MY, Montgomery RA, Hanson PJ, Phillips JR, Kolka RK, Palik B. Vascular plant species response to warming and elevated carbon dioxide in a boreal peatland. Environmental Research Letters. 2020;15(12):124066. doi:10.1088/1748-9326/abc4fb

2019

  1. Fernandez CW, Heckman K, Kolka RK, Kennedy PG. Melanin mitigates the accelerated decay of mycorrhizal necromass with peatland warming. Klironomos J. Ecology Letters. 2019;22(3):498-505. doi:10.1111/ele.13209

2018

  1. McPartland MY, Kane ES, Falkowski MJ, Kolka RK, Turetsky MR, Palik B, Montgomery RA. The response of boreal peatland community composition and NDVI to hydrologic change, warming, and elevated carbon dioxide. Global Change Biology. 2018;25(1):93-107. doi:10.1111/gcb.14465

2017

  1. Iversen CM, Childs J, Norby RJ, Ontl TA, Kolka RK, Brice DJ, McFarlane KJ, Hanson PJ. Fine-root growth in a forested bog is seasonally dynamic, but shallowly distributed in nutrient-poor peat. Plant and Soil. 2017;424(1-2):123-143. doi:10.1007/s11104-017-3231-z
  2. Haynes KM, Kane ES, Potvin L, Lilleskov EA, Kolka RK, Mitchell CPJ. Gaseous mercury fluxes in peatlands and the potential influence of climate change. Atmospheric Environment. 2017;154:247-259. doi:10.1016/j.atmosenv.2017.01.049

2016

  1. Hanson PJ, Gill AL, Xu X, Phillips JR, Weston DJ, Kolka RK, Riggs JS, Hook LA. Intermediate-scale community-level flux of CO2 and CH4 in a Minnesota peatland: putting the SPRUCE project in a global context. Biogeochemistry. 2016;129(3):255-272. doi:10.1007/s10533-016-0230-8
  2. Wilson RM, Hopple AM, Tfaily MM, Sebestyen SD, Schadt CW, Pfeifer-Meister L, Medvedeff CA, McFarlane KJ, Kostka JE, Kolton M, et al. Stability of peatland carbon to rising temperatures. Nature Communications. 2016;7(1). doi:10.1038/ncomms13723

2012

  1. Parsekian AD, Slater L, Ntarlagiannis D, Nolan J, Sebestyen SD, Kolka RK, Hanson PJ. Uncertainty in Peat Volume and Soil Carbon Estimated Using Ground‐Penetrating Radar and Probing. Soil Science Society of America Journal. 2012;76(5):1911-1918. doi:10.2136/sssaj2012.0040

mnspruce.ornl.gov

An official website of the U.S. Department of Energy and the USDA Forest Service

Looking for U.S. government information and services?
Visit USA.gov