Saurette D.D., Berg A.A., Laamrani A., Heck R.J., Gillespie A.W., Voroney P. and Biswas A. (2022) Effects of sample size and covariate resolution on field-scale predictive digital mapping of soil carbon. Geoderma. 425:116054. https://doi.org/10.1016/j.geoderma.2022.116054
Vestergaard, R.-J., Vasava, H. B., Aspinall D., Chen S.; Gillespie A., Adamchuk V. and Biswas, A (2021) Evaluation of optimized preprocessing and modeling algorithms for prediction of soil properties using vis‐nir spectroscopy. Sensors. 21:6745. https://doi.org/10.3390/s21206745
Baumann K., Eckhardt K.-U., Acksel A., Gros P., Glaser K., Gillespie A.W., Karsten U., Leinweber P. (2021) Contribution of biological soil crusts to soil organic matter composition and stability in temperate forests. Soil Biol. Biochem. 160:108315. http://dx.doi.org/10.1016/j.soilbio.2021.108315
Laamrani, A. PR Voroney, AW Gillespie, A Chehbouni (2021) Development of a Land Use Carbon Inventory for Agricultural Soils in the Canadian Province of Ontario. Land 10 (7), 765. https://doi.org/10.3390/land10070765
Audette, Y., Longstaffe, J., Gillespie, A.W., Smith, D.S., and Voroney, R.P. (2021) Validation and comparisons of NaOH and Na4P2O7 extraction methods for the characterization of organic amendments. Soil Sci. Soc. Am. J. 85:273-285. http://dx.doi.org/10.1002/saj2.20195
Warren C.J., Saurette, D.D., and Gillespie, A.W. (2021) Soil organic carbon content: decreases partly attributed to dilution by increased depth of cultivation in southern Ontario. Can. J. Soil Sci. 101:335–338. https://dx.doi.org/10.1139/cjss-2020-0092
King, A.E., Ali, G.A., Gillespie, A.W., Wagner-Riddle, C. (2020) Soil Organic Matter as Catalyst of Crop Resource Capture. Frontiers in Environmental Science 8:50. https://doi.org/10.3389/fenvs.2020.00050
Laamrani, A., Voroney, P.R., Berg, A.A., Gillespie, A.W., March, M., Deen, B., Martin, R.C. (2020) Temporal change of soil carbon on a long-term experimental site with variable crop rotations and tillage systems. Agronomy, 10:10060840. https://doi.org/10.3390/agronomy10060840
Torres-Rojas, D., Hestrin, R., Solomon, D., Gillespie, A.W., Dynes, J.J., Regier, T.Z., Lehmann, J. (2020) Nitrogen speciation and transformations in fire-derived organic matter. Geochimica et Cosmochimica Acta. 276: 170-185. https://doi.org/10.1016/j.gca.2020.02.034
Adams, A.M., Kar, G., Bationo, A., Ouattara, B., Gillespie, A.W., Koala, S., Kimaro, A.A., Schoenau, J.J., Peak, D. (2020). Long-term effects of integrated soil fertility management practices on soil chemical properties in the Sahel. Geoderma. 366: 114207. https://doi.org/10.1016/j.geoderma.2020.114207
Kar, G., Schoenau, J.J., Gillespie, A.W., Dhillon, G.S., Peak, D. (2019) Sulfur Species Formed in the Seed Row of Sulfur-Fertilized Soils as Revealed by K-Edge X-ray Absorption Near-Edge Structure Spectroscopy. Soil Sci. Soc. Am. J., 83:1324-1332. http://dx.doi.org/10.2136/sssaj2019.01.0008.
Hestrin, R., Torres-Rojas, D., Dynes, J.J., Hook, J.M., Regier, T.Z., Gillespie, A.W., Smernik, R.J., Lehmann, J. (2019) Fire-derived organic matter retains ammonia through covalent bond formation. Nature Communications. 10:664. https://doi.org/10.1038/s41467-019-08401-z
Osei, A.K., Kimaro, A.A., Peak, D., Gillespie, A.W., and Van Rees, K.C.J. (2018) Soil carbon stocks in planted woodlots and Ngitili systems in Shinyanga, Tanzania. Agroforestry Systems, 92:251-262. https://doi.org/10.1007/s10457-016-0028-7
Dhillon, G.S.,Gillespie, A.W., Peak, D., and Van Rees, K.C.J. (2017) Spectroscopic investigation of soil organic carbon composition under shelterbelt agroforestry systems. Geoderma, 298:1-13. https://doi.org/10.1016/j.geoderma.2017.03.016
Adams, A.M., Gillespie, A.W., Kar, G., Koala, S., Ouattara, B., Kimaro, A.A., Bationo, A., Akponikpe, P.B.I., Schoenau, J.J., Peak, D. (2016) Long term effects of reduced fertilizer rates on millet yields and soil properties in the West-African Sahel . Nutrient Cycling in Agroecosystems, 106:17-29. https://doi.org/10.1007/s10705-016-9786-x
Diochon, A., A.W. Gillespie, B.H. Ellert, H.H. Janzen, E.G. Gregorich. (2016) Recovery of decomposing plant residue in soil: An evaluation of three fractionation methods based on size and density. Eur. J. Soil Sci. 67:196-205. https://doi.org/10.1111/ejss.12316
Gregorich, E.G., Gillespie, A.W., Beare, M.H., Curtin, D., Sanei, H., Yanni, S. (2015) Evaluating biodegradability of soil organic matter by its thermal stability and chemical composition. Soil Biol. Biochem, 91:182-191. https://doi.org/10.1016/j.soilbio.2015.08.032
Gillespie, A.W., Phillips, C.L., Regier, T.Z., Dynes, J.J., Boyko, T., Chevrier, D., Peak, D. (2015) Advances in soft X-ray spectroscopy of biogeochemically relevant samples. Advances in Agronomy, 133:1-32. https://doi.org/10.1016/bs.agron.2015.05.003
Gillespie, A.W., H. Sanei, A. Diochon, B.H. Ellert, T.Z. Regier, D. Chevrier, J.J. Dynes, C. Tarnocai, and E.G. Gregorich. 2014. Perennially and annually frozen soil carbon differ in their susceptibility to decomposition: Analysis of Subarctic earth hummocks by bioassay, XANES and pyrolysis. Soil Biol. Biochem. 68:106-116. http://dx.doi.org/10.1016/j.soilbio.2013.09.021
Gillespie, A.W., A. Diochon, B.L. Ma, M.J. Morrison, L. Kellman, F.L. Walley, T.Z. Regier, D. Chevrier, J.J. Dynes, E.G. Gregorich. 2014. Nitrogen input quality changes the biochemical composition of soil organic matter stabilized in the fine fraction – a long-term study. Biogeochemistry. 117:337-350. https://doi.org/10.1007/s10533-013-9871-z
Walley, F.L. , A.W. Gillespie, A.B. Adetone, J.J. Germida, R.E. Farrell. 2014. Manipulation of rhizosphere organisms to enhance glomalin production and C-sequestration: Pitfalls and promises. Can J Plant Sci. 94:1025-1032 https://doi.org/10.4141/CJPS2013-146
Gillespie, A.W., F.L. Walley, R.E. Farrell, P. Leinweber, K.U. Eckhardt, T.Z. Regier, and R.I.R. Blyth. 2011. XANES and pyrolysis-FIMS evidence of organic matter composition in a hummocky landscape. Soil Sci. Soc. Am. J. 75: 1741-1755. https://doi.org/10.2136/sssaj2010.0279
Gillespie, A.W., R.E. Farrell, F.L. Walley, A.R.A. Ross, P. Leinweber, K.U. Eckhardt, T.Z. Regier, and R.I.R. Blyth. 2011. Glomalin-related soil protein contains non-mycorrhizal-related heat-stable proteins, thioredoxin, lipids and humic materials. Soil Biol. Biochem. 43:766-777. https://doi.org/10.1016/j.soilbio.2010.12.010
Gillespie, A.W., F.L. Walley, R.E. Farrell, P. Leinweber, A. Schlichting, K.U. Eckhardt, T.Z. Regier, and R.I.R. Blyth. 2009. Profiling rhizosphere chemistry: Evidence from N and C \emph{K}-edge XANES and Py-FIMS. Soil Sci. Soc. Am. J. 73: 2002-2012. https://doi.org/10.2136/sssaj2008.0273
Gillespie, A.W., F.L. Walley, R.E. Farrell, T.Z. Regier, and R.I.R. Blyth. 2008. Calibration method at the N \emph{K}-edge using interstitial nitrogen gas in solid-state nitrogen-containing inorganic compounds. J. Synch. Rad. 15:532-534. https://doi.org/10.1107/S0909049508014283
Leinweber, P., J. Kruse, F.L.Walley, A. Gillespie, K.U. Eckhardt, R.I.R. Blyth, and T. Regier. 2007. Nitrogen K-edge XANES – An overview of reference compounds used to identify `unknown’ organic nitrogen in environmental samples. J. Synch. Rad. 14:500-511. https://doi.org/10.1107/S0909049507042513