Publications

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Diochon, A., E.G. Gregorich, L. Kellman, M. Morrison, and B-L. Ma (2016) Greater soil C inputs accelerate loss of C in cropping systems with low N input, Plant and Soil, 400: 93-105.


Chmura, G., L. Kellman, G. Guntenspergen and L. van Ardenne (2016) Greenhouse gas fluxes from salt marshes exposed to chronic nutrient enrichment, PLOS ONE, DOI:10.1371/journal.pone.0149937.


Kellman, L.,  Myette, A. and H. Beltrami (2015) Depth-dependent mineral soil CO2 production processes: sensitivity to harvesting-induced changes in soil climate, PLOS ONE, doi: 1371/journal.pone.0134171.


Kellman, L., Kumar, S. and A. Diochon (2014) Soil nitrogen dynamics within profiles of a managed moist temperate forest chronosequence consistent with long-term harvesting-induced losses, Journal of Geophysical Research – Biogeosciences, 119: 1309-1321.


McVicar, K. and L. Kellman (2014) Growing season nitrous oxide fluxes across a 125+ year harvested red spruce forest chronosequence, Biogeochemistry, doi:10.1007/s10533-014-9992-z.


Prest, D., L. Kellman, and M. Lavigne (2014) Further evidence of mineral soil C and N losses 3 decades following clearcut harvesting in a temperate red spruce forest in central Nova Scotia, Canada, Geoderma, doi.org/10.1016/j.geoderma.2013.10.002.


Gillespie, A.W., A. Diochon, B.L. Ma, M.J. Morrison, L. Kellman, F.L. Walley, T.Z. Regier, D. Chevrier, J.J. Dynes, and E.G. Gregorich (2014) Nitrogen additions change the biochemical composition of 'stable' soil organic matter in the fine fraction - a long-term study, Biogeochemistry, 117: 351-358, doi: 10.1007/s10533-013-9871-z.


Gabriel, C.E. and L. Kellman (2014) Investigating the role of moisture as an environmental constraint in the decomposition of shallow and deep mineral soil organic matter of a temperate coniferous soil, Soil Biology and Biochemistry, 68: 373-384.


Bekele, A., L. Kellman and H. Beltrami (2013) Plot level spatial heterogeneity of soil organic carbon, nitrogen, and their stable isotopic compositions in temperate managed forest soils of Atlantic Canada, Soil Science, 178: 400-416.


Lavoie, M., L. Kellman and D. Risk (2013) The effects of clear-cutting on soil CO2, CH4, and N2O flux, storage and concentration in two Atlantic temperate forests in Nova Scotia, Canada, Forest Ecology and Management, 304: 355-369.


Risk, D., N. Nickerson, E. Bourlon, C. Phillips, L. Kellman and M. Moroni (2012) Drought alters respired δ13CO2 from autotrophic, but not heterotrophic soil respiration. Soil Biology and Biochemistry,  DOI: 10.1016/j.soilbio.2012.01.025


Chmura, G.L. Kellman, L. and Guntenspergen, G.R  (2011)  The Greenhouse Gas Flux and Global Warming Potential of a Northern Macrotidal and Microtidal Salt Marsh, Environmental Research Letters, 6, doi:10.1088/1748-9326/6/4/044016.


Smith, E. and L. Kellman (2011) Examination of nitrate concentration, loading and isotope dynamics in subsurface drainage under standard agricultural cropping in Atlantic Canada, Journal of Environmental Management,  92: 2895-2899.


Smith, E. and L. Kellman (2011) Nitrate loading and isotopic signatures in subsurface agricultural drainage systems, Journal of Environmental Quality, doi:10.2134/jeq2010.0489


Risk, D. L. Kellman and M. Moroni (2009) Characterization of variability and patterns in tree and soil δ13C at research sites in eastern Canada, Isotopes in Environmental and Health Studies, 45: 220-230.


Diochon, A., L. Kellman (2009) Physical fractionation of soil organic matter: Destabilization of deep soil carbon following harvesting of a temperate coniferous forest, Journal of Geophysical Research, 114, G01016, doi:10.1029/2008JG000844.


Diochon, A., L. Kellman and H. Beltrami (2009) Looking deeper:  an investigation of soil carbon losses following harvesting from a managed northeastern red spruce (Picea rubens Sarg.) forest chronosequence, Forest Ecology and Management, 257, 2, 31 January 2009, Pages 413-420, doi:10.1016/j.foreco.2008.09.015.


Risk, D., L Kellman, H. Beltrami and A. Diochon (2008) In-situ incubations highlight the environmental constraints on soil organic carbon decomposition. Environmental Research Letters, 3 (2008) 044004, doi:10.1088/1748-9326/3/4/044004.


Kellman, L. and K. Kavanaugh (2008) Nitrous oxide dynamics in managed northern forest soil profiles: is production offset by consumption? Biogeochemistry, 90: 115-128, doi:10.1007/s10533-008-9237-0.


Diochon, A., and L. Kellman (2008) Natural abundance measurements of 13C indicate increased mineralization in deep mineral soil after forest disturbance, Geophysical Research Letters, 35, L14402, doi:10.1029/2008GL034795.


Risk, D.  and L. Kellman (2008)  Isotopic fractionation in non-equilibrium diffusive environments, Geophysical Research Letters, 35, L02403, doi:10.1029/2007GL032374.


Risk, D.  L. Kellman and H. Beltrami,  (2008) A new method for in-situ soil gas diffusivity measurement and applications to trace gas studies, Journal of Geophysical Research - Biogeosciences. doi:10.1029/2007JG000445.


Bekele, A., L. Kellman and H. Beltrami (2007) Soil Profile CO2 concentrations in forested and clear cut sites in Nova Scotia, Canada, Forest Ecology and Management, doi: 10.1016/j.foreco.2007.01.088.


Kellman, L., H. Beltrami and D. Risk (2007) Changes in seasonal soil respiration with pasture conversion to forest in Atlantic Canada, Biogeochemistry, 82: 101-109.


Beltrami, H., E. Bourlon, L. Kellman and J.F. González-Rouco. (2006) Spatial patterns of ground heat gain in the northern hemisphere, Geophysical Research Letters, 33: L06717.


Kellman, L. (2005) A study of tile drain - δ15N values as a tool for assessing nitrate sources in agricultural regions, Nutrient Cycling in Agroecosystems, 71, 131–137, 10.1007/s10705-004-1925-0, 2005.


Kellman, L. (2004) Nitrate removal in a first-order stream: Reconciling laboratory and field measurements, Biogeochemistry, 71: 89-105.


Kellman, L. and C. Hillaire-Marcel (2003) Evaluation of nitrogen isotopes as indicators of contamination sources in an agricultural watershed, Agriculture, Ecosystem and Environment, 95: 87-102.


Beltrami, H. and L. Kellman (2003) An examination of short and long term air-ground temperature coupling at sites subjected to strong seasonal variations, Global and Planetary Change, 38, 291-303.


Risk, D., L. Kellman and H. Beltrami (2002) Carbon dioxide in soil profiles: Production and temperature dependance. Geophysical Research Letters. 29: 1029 – 1033.


Risk, D., L. Kellman and H. Beltrami (2002) Soil CO2 production and surface flux at four climate observatories in Eastern Canada. Global Biogeochemical Cycles, 16: 1122-1136.


Kellman, L. and C. Hillaire-Marcel (1998)  Nitrate cycling in streams: Using natural abundances of NO3-15N to measure in-situ denitrification, Biogeochemistry, 43: 273-292.