Guillermo Hernandez Ramirez

Associate Professor - https://landecosystems.ualberta.ca/, Faculty of Agricultural, Life and Environmental Sci - Renewable Resources Dept

Contact

Associate Professor - https://landecosystems.ualberta.ca/, Faculty of Agricultural, Life and Environmental Sci - Renewable Resources Dept
Email
ghernand@ualberta.ca
Phone
(780) 492-2428
Address
426 Earth Sciences Building
11223 Saskatchewan Drive NW
Edmonton AB
T6G 2E3

Overview

About

Guillermo's biosketch:

Guillermo has been working at UAlberta since 2012. He received his B.Sc. from EARTH University (Costa Rica), and his Ph.D. from Purdue University (Indiana, US). He previously worked as a scientist with Plant and Food Research Institute (New Zealand), a professor at the Faculty of Agricultural Sciences - University of Panama, and a postdoctoral researcher with USDA-ARS at the National Laboratory for Agriculture and the Environment (Iowa, US).

Guillermo's academic recognitions include:

  • Teacher of the Year. Faculty of ALES – University of Alberta.
  • Humboldt Research Fellowship. Alexander von Humboldt Foundation and University of Hohenheim.
  • Ed and Peggy Tyrchniewicz Award for Innovation in Teaching. Faculty of ALES – University of Alberta.
  • Alberta Science and Technology (ASTech) Award for Innovation in Agricultural Science (as team award). ASTech Foundation.
  • Inspiring Young Scientist Award. American Society of Agronomy (ASA).
  • Bilsland Dissertation Fellowship. Purdue University.
  • Frederick N. Andrews Award for Environmental Research. Purdue University.
  • Fulbright Scholarship. US Department of State.
  • Business, Environment, Learning and Leadership (BELL) Award (as team award). World Resources Institute (WRI). 

Research

Guillermo leads the Sustainable Land Ecosystems Research Group 

As a research group, the foci encompass carbon, nitrogen and water cycling and dynamics in land ecosystems. For example, we examine sources, transformation, utilization, behavior, fate, and fluxes of carbon and nitrogen in land ecosystems (often also called agroecosystems) with particular focus on the relative responses, controlling factors, and feedbacks of greenhouse gas exchange and soil carbon sequestration to common and improved management options. Furthermore, field to landscape strategies for sustainable management, greenhouse gas mitigation, climate change adaptation, enhanced resilience of soil and whole ecosystems, improved nutrient and water use-efficiencies, and increased ecosystem services in agricultural systems are also subject of investigation. We aim to deepen, underpin, and extend the existing scientific knowledge on these relevant research areas in order to gain insights, to discover and establish principles, and ultimately to provide solutions for current challenging problems faced by the local, regional and global societies including environmental quality, natural resources conservation, and food and energy securities. Moreover, this collective work contributes to inform process modelling efforts, life cycle assessments, and provide the foundation for the development of policy towards carbon-negative and carbon-neutral systems.

The Research Group is currently integrated by six PhD students, four MSc students, two undergraduate students, two research assistants and two postdoctoral fellow. The alumni include nine graduates, fourteen undergraduates, eight assistants and one visiting professor. The background of the laboratory members includes Canada, Korea, Singapore, China, Bangladesh, Sri Lanka, India, Mexico, Nigeria, Pakistan, Peru, Iran, Ghana, Germany, United Kingdom, and United States. We continue enriching this diversity in our membership as we are open to applicants from all nations and backgrounds.

Announcements

Opportunities for Prospective Students:

Enquiries from prospective graduate (MSc and PhD) and undergraduate research students are cordially invited. We are continually welcoming academically-excellent and highly-motivated applicants who are interested in working with us. Following initial email contact and documentation assessment, candidates are encouraged to prepare and propose their research plan. All prospective students are expected to express their research interests. Upon admission acceptance and approval, students can be assigned to existing project(s) and funding sources available within our research group, or they can seek and secure their own external funding sources. Such funding from within our research group or other funding sources is useful for the students to support their living costs and tuition expenses. The central role of the students is as junior researchers.

Contact us preferably via email - ghernand@ualberta.ca. When emailing application documentation, please include: CV, transcripts of university credits, list of referees, statement of research interests, and other supporting information or materials as suitable. It is recommended to contact at least one of the current graduate students in our research group.

Our dedicated and exciting research work in croplands, grasslands, forest and alpine ecosystems includes measuring, modelling, monitoring and mapping key properties, attributes, functions and fluxes.

Courses

REN R 445 - Soil Fertility

Essential plant nutrients; factors influencing nutrient availability; methods of evaluating soil fertility; correction of soil fertility problems; manufacture, composition, and use of fertilizers. Lab exercises may include field trips. May require payment of additional student instructional support fees. Refer to the Tuition and Fees page in the University Regulations section of the Calendar. Prerequisite: REN R 210.

Winter Term 2022
REN R 450 - Environmentally Sustainable Agriculture

Land-management issues that influence the sustainability of both agriculture and the land resource. Role of ecological processes in determining sustainability and the development and adoption of practices that facilitate long-term viability of both agriculture and biophysical resources. The concept of the agro-ecosystem and application of ecological principles to agricultural land management. Use of environmental indicators to measure and predict long-term sustainability of agricultural land management. Prerequisites: *60 at university level including (REN R 210 or SOILS 210), and (BIOL 208 or PL SC 221).

Winter Term 2022
REN R 501 - Topics in Renewable Resources

Directed study in the multiple aspects of renewable resources. Open to fourth year or graduate students upon consent of instructor.

Fall Term 2021
REN R 552 - Environmentally Sustainable Agriculture

Land-management issues that influence the sustainability of both agriculture and the land resource. Role of ecological processes in determining sustainability and the development and adoption of practices that facilitate long-term viability of both agriculture and biophysical resources. The concept of the agroecosystem and application of ecological principles to agricultural land management. Use of environmental indicators to measure and predict longterm sustainability of agricultural land management. Not to be taken if credit received for REN R 450 or REN R 752.

Winter Term 2022
REN R 745 - Soil Fertility

Essential plant nutrients; factors influencing nutrient availability; methods of evaluating soil fertility; correction of soil fertility problems; manufacture, composition, and use of fertilizers. Lab exercises may include field trips. May require payment of additional student instructional support fees. Refer to the Tuition and Fees page in the University Regulations section of the Calendar. Not to be taken if credit received for REN R 445.

Winter Term 2022

Browse more courses taught by Guillermo Hernandez Ramirez

Publications

How does Management Legacy, Nitrogen Addition and Nitrification Inhibition Impact Soil Organic Matter Priming and Nitrous Oxide Production?
Author(s): Thilakarathna, S.K., Hernandez-Ramirez, G.*
Publication Date: 2021
Publication: Journal of Environmental Quality
Volume: 50
Page Numbers: 78-93
External Link: https://acsess.onlinelibrary.wiley.com/doi/epdf/10.1002/jeq2.20168
Sources and priming of N2O production across a range of moisture contents in a soil with high organic matter.
Author(s): Roman-Perez C.C., Hernandez-Ramirez, G*.
Publication Date: 2021
Publication: Journal of Environmental Quality
Volume: 50
Page Numbers: 94-109
External Link: https://acsess.onlinelibrary.wiley.com/doi/epdf/10.1002/jeq2.20172
The evaluation of warm-season annual grasses as alternative sources of forage crops for beef cattle diets under northwestern Alberta conditions.
Author(s): Omokanye A., Hernandez-Ramirez, G., Lardner H.A., Al-Maqtari B, Gill KS and Lee A.
Publication Date: 2021
Publication: Journal of Crop Improvement.
External Link: https://www.tandfonline.com/doi/abs/10.1080/15427528.2020.1847226
Perennial Grain Cropping Enhances the Soil Methane Sink in Temperate Agroecosystems.
Author(s): Kim, K, Daly E.J*, Hernandez-Ramirez, G.
Publication Date: 2021
Publication: Geoderma
Volume: 388
External Link: https://doi.org/10.1016/j.geoderma.2021.114931
Agroforestry Practices for Soil Conservation and Resilient Agriculture.
Author(s): T.J. Sauer*, C. Dold, A.J. Ashworth, C.C. Nieman, G. Hernandez-Ramirez, D. Philipp, A.N. Gennadiev, and Y.G. Chendev.
Publication Date: 2021
Publication: In: Ranjith Udawatta and Shibu Jose (eds.). Agroforestry and Ecosystem Services. Springer
Page Numbers: 351–370.

Nitrogen turnover and N2O production in incubated soils after receiving field applications of liquid manure and nitrification inhibitors.
Author(s): Lin, S., and G. Hernandez-Ramirez.
Publication Date: 2021
Publication: Canadian Journal of Soil Science,
External Link: https://cdnsciencepub.com/doi/abs/10.1139/CJSS-2020-0102?journalCode=cjss
Primings of soil organic matter and denitrification mediate the effects of moisture on nitrous oxide production.
Author(s): Thilakarathna, S.K., Hernandez-Ramirez, G.*
Publication Date: 2021
Publication: Soil Biol. Biochem.
Volume: 155
Page Numbers: 108166
External Link: http://dx.doi.org/10.1016/j.soilbio.2021.108166
How does soil compaction alter nitrous oxide fluxes? A meta-analysis.
Author(s): Hernandez-Ramirez G*, Reiner Ruser, Dong-Gill Kim.
Publication Date: 2021
Publication: Soil & Tillage Research
External Link: https://doi.org/10.1016/j.still.2021.105036
A methane sink in the Central American high elevation paramo: Topographic, soil moisture and vegetation effects
Author(s): Chai, LL, Hernandez-Ramirez G*, Hik DS, Barrio IC, Frost CM, Soto CC, Esquivel-Hernandez G
Publication Date: 12/19/2020
Publication: Geoderma
Volume: 362
Page Numbers: 114092
External Link: https://www.sciencedirect.com/science/article/abs/pii/S001670611930816X
CH4 uptake along a successional gradient in temperate alpine soils
Author(s): Brachmann C.; Hernandez-Ramirez G., Hik D
Publication Date: 12/19/2020
Publication: Biogeochemistry. DOI: 10.1007/s10533-019-00630-0
Volume: 147
Page Numbers: 109–123
External Link: https://web.a.ebscohost.com/abstract?direct=true&profile=ehost&scope=site&authtype=crawler&jrnl=01682563&AN=141413993&h=UnqyxLEnlFvYNxEfCuuGZE6mED1jxTnSOdRqRNClH9XiNS8bE7zdb3eeLAhO4PbJl2DEuET2%2biLQT9%2bQ%2bm5Whw%3d%3d&crl=c&resultNs=AdminWebAuth&resultLocal=ErrCrlNotAuth&crlhashurl=login.aspx%3fdirect%3dtrue%26profile%3dehost%26scope%3dsite%26authtype%3dcrawler%26jrnl%3d01682563%26AN%3d141413993
Modelling Nitrification Inhibitor Effects on N2O Emissions after Fall and Spring-Applied Slurry by Reducing Nitrifier NH4+ Oxidation Rate. Biogeosciences
Author(s): Grant R.F., Lin S., Hernandez-Ramirez G.
Publication Date: 12/19/2020
Publication: Biogeosciences
Volume: 17
Page Numbers: 2021–2039.
External Link: https://bg.copernicus.org/articles/17/2021/2020/
Timing of manure injection and nitrification inhibitors impacts on nitrous oxide emissions and nitrogen transformations in a barley crop
Author(s): Lin S, Hernandez Ramirez G, Kryzanowski L, Wallace T, Grant R, Degenhardt R, Berger N, Sprout C, Lohstraeter G, Powers L-A
Publication Date: 12/19/2020
Publication: Soil Sci. Soc. Am. J.
Volume: 81
Page Numbers: 1595-1605
External Link: https://dl.sciencesocieties.org/publications/sssaj/pdfs/81/6/1595
Water and nutrient retention in coarse-textured soil profiles from the Athabasca oil sand region
Author(s): Rees F, Quideau S, Dyck M, Hernandez-Ramirez G, Yarmuch M
Publication Date: 12/19/2020
Publication: Applied Geochemistry
Volume: 114
Page Numbers: 104526

Nitrous oxide emissions from manured soils as a function of various nitrification inhibitor rates and soil moisture contents.
Author(s): Lin, S., and G. Hernandez-Ramirez
Publication Date: 2020
Publication: Sci. Total Environ.
Volume: 738
External Link: https://www.sciencedirect.com/science/article/abs/pii/S0048969720331892
Can fertigation reduce nitrous oxide emissions from wheat and canola fields?
Author(s): Chai L.L., Hernandez-Ramirez G., M. Dyck, D. Pauly, L. Kryzanowski, A. Middleton, L-A. Powers, G. Lohstraeter, and D. Werk.
Publication Date: 2020
Publication: Sci. Total Environ.
Volume: 745
External Link: https://doi.org/10.1016/j.scitotenv.2020.141014
Forage Potential of Corn Intercrops for Beef Cattle Diets in Northwestern Alberta.
Author(s): Omokanye, A., B. Al-Maqtari, H.A. Lardner, G. Hernandez-Ramirez, K.S. Gill, L. Sreekumar, A. Lee.
Publication Date: 2020
Publication: Crop, Forage & Turfgrass Management
Volume: 16843655
External Link: https://acsess.onlinelibrary.wiley.com/doi/full/10.1002/cft2.20056
Sources and priming of soil N2O and CO2 production: nitrogen and simulated exudate additions.
Author(s): Daly E.J*, and G. Hernandez-Ramirez
Publication Date: 2020
Publication: Soil Biol. Biochem.
Volume: 149
Page Numbers: 107942
External Link: https://doi.org/10.1016/j.soilbio.2020.107942
Nitrous Oxide Emissions and Nitrogen Use Efficiency in Wheat: N Fertilization Timing and Formulation, Soil N, and Weather Effects.
Author(s): Thilakarathna, S.K. Hernandez-Ramirez, G.*, Puurveen, D., Kryzanowski L, Lohstraeter G, Powers L-A, Quan, N., and Tenuta, M.
Publication Date: 2020
Publication: Soil Sci. Soc. Am. J.
Volume: 84
Page Numbers: 1910–1927
External Link: https://acsess.onlinelibrary.wiley.com/doi/abs/10.1002/saj2.20145
Spatial variation of soil quality indicators as a function of land use and topography
Author(s): Kiani M, Hernandez-Ramirez G., Quideau S.
Publication Date: 2020
Publication: CJSS-2019-0163

Mobile learning and student engagement in remote field activities
Author(s): Ralston A, Hernandez G, Dyck M, MacKenzie MD, and Quideau SA
Publication Date: 12/19/2019
Publication: First Monday
Volume: 24
Page Numbers: 11
External Link: https://firstmonday.org/ojs/index.php/fm/article/download/9999/8154
Soil structure dynamics in annual croplands under controlled traffic management
Author(s): Guenette KG, Hernandez-Ramirez, G, Gamache P, Andreiuk R, Fausak L
Publication Date: 12/19/2019
Publication: Canadian J. of Soil Science
Volume: 99
Page Numbers: 146-160

Odorous Compounds Sources and Transport from a Swine Deep-Pit Finishing Operation: A case study
Author(s): Trabue S., Scoggin K, Tyndall J, Sauer TJ, Hernandez-Ramirez G., Pfeiffer R, Hatfield J
Publication Date: 5/19/2019
Publication: Journal of Environmental Management
Volume: 233
Page Numbers: 12-23
External Link: https://www.sciencedirect.com/science/article/pii/S0301479718312520
Soil organic matter dynamics in long-term temperate agroecosystems: rotation and nutrient addition effects
Author(s): Li JC, Hernandez-Ramirez, G, Kiani, M, Quideau, S, Smith, E, Janzen, H, Larney, F, Puurveen, D
Publication Date: 12/19/2018
Publication: Canadian Journal of Soil Science
Volume: 98
Page Numbers: 232-245
External Link: https://cdnsciencepub.com/doi/full/10.1139/cjss-2017-0127
Can Faba Bean Physiological Responses Stem from Contrasting Traffic Management Regimes?
Author(s): Guenette KG, Hernandez-Ramirez, G
Publication Date: 12/18/2018
Publication: Agronomy
Volume: 8
External Link: https://doi.org/10.3390/agronomy8100200
Tracking the influence of controlled traffic regimes on field scale soil variability and geospatial modeling techniques.
Author(s): Guenette KG, Hernandez-Ramirez, G
Publication Date: 2/19/2018
Publication: Geoderma
Volume: 328
Page Numbers: 66-78
External Link: https://www.sciencedirect.com/science/article/pii/S0016706117320839
Quantifying the sensitive soil quality indicators across contrasting long-term land management systems: crop rotations and nutrient regimes
Author(s): Kiani M, Hernandez-Ramirez G, Quideau S, Smith E, Janzen H, Larney F, Puurveen D
Publication Date: 12/19/2017
Publication: Agric. Ecosyst. Environ.
Volume: 248
Page Numbers: 123–135
External Link: https://www.sciencedirect.com/science/article/pii/S0167880917303171
Soil physical quality varies among contrasting land uses in Northern Prairie regions
Author(s): Hebb C, Schoderbek D, Hernandez-Ramirez G, Hewins D, Carlyle CN, Bork E.
Publication Date: 12/19/2017
Publication: Agric. Ecosyst. Environ.
Volume: 240
Page Numbers: 14-23
External Link: https://www.sciencedirect.com/science/article/pii/S0167880917300713
Mineralization of Soil Carbon and Nitrogen Following Physical Disturbance: A Laboratory Assessment
Author(s): Curtin D, Beare M, Scott C, Hernandez-Ramirez G and Meenken E.
Publication Date: 2014
Publication: Soil Science Society of America Journal.
Volume: 78
Page Numbers: 925–935

Root Responses to Alterations in Macroporosity and Penetrability in a Silt Loam Soil
Author(s): Hernandez-Ramirez G, Lawrence-Smith EJ, Sinton SM, Tabley F, Schwen A, Beare MH, Brown HE
Publication Date: 2014
Publication: Soil Sci. Soc. Am. J.
Volume: 78
Page Numbers: 1392–1403

Background nitrous oxide emissions in agricultural and natural lands: a meta-analysis
Author(s): Kim DG, Giltrap D, Hernandez-Ramirez G.
Publication Date: 2013
Publication: Plant Soil
Volume: 373
Page Numbers: 17-30

Linear and nonlinear dependency of direct nitrous oxide emissions on fertilizer nitrogen input: A meta-analysis
Author(s): Kim, D-G., G. Hernandez-Ramirez, and D. Giltrap
Publication Date: 2012
Publication: Agric. Ecosyst. Environ

Odor Mitigation with Tree Buffers: Swine Production Case Study
Author(s): Hernandez-Ramirez, G., S.L. Trabue, T.J. Sauer, R.L. Pfeiffer, J.C. Tyndall
Publication Date: 2012
Publication: Agric. Ecosyst. Environ.
Volume: 149
Page Numbers: 154–163

Soil Properties Following Reforestation or Afforestation of Marginal Cropland in Iowa
Author(s): Sauer, T.J., D.E. James, C.A. Cambardella, G. Hernandez-Ramirez
Publication Date: 2012
Publication: Plant Soil

Temperature and moisture effects on microbial biomass and soil organic matter mineralization
Author(s): Curtin D, Beare MH, Hernandez-Ramirez G
Publication Date: 2012
Publication: Soil Sci. Soc. Am. J.
Volume: 76
Page Numbers: 2055-2067

Carbon Dioxide Fluxes in Corn-Soybean Rotations in the Midwestern U.S.: Inter- and Intra-annual Variations, and Biophysical Controls.
Author(s): Hernandez-Ramirez, G., J.L. Hatfield, T.B. Parkin, T.J. Sauer and J.H. Prueger
Publication Date: 2011
Publication: Agric. Forest. Meteor
Volume: 151
Page Numbers: 1831– 1842

Carbon sources and dynamics in afforested and cultivated corn belt soils
Author(s): Hernandez-Ramirez, G., T.J. Sauer, C.A. Cambardella, J.R. Brandle, and D.E. James
Publication Date: 2011
Publication: Soil Sci. Soc. Am. J.
Volume: 75
Page Numbers: 216–225

Hydraulic Properties and the Water-Conducting Porosity as Affected by Subsurface Compaction Using Tension Infiltrometry.
Author(s): Schwen, A., G. Hernandez-Ramirez, E.J. Lawrence-Smith, S.M. Sinton, S. Carrick, B.E. Clothier, G.D. Buchan, and W. Loiskandl.
Publication Date: 2011
Publication: Soil Sci. Soc. Am. J.
Volume: 75
Page Numbers: 822-831

Nitrate, Phosphate, and Ammonium Loads at Subsurface Drains in the Eastern Corn Belt: Agroecosystem and Nitrogen Management
Author(s): Hernandez-Ramirez, G., S.M. Brouder, M.D. Ruark, and R.F. Turco
Publication Date: 2011
Publication: J. Environ. Qual.
Volume: 40
Page Numbers: 1229-1240

Nitrogen Fertilizer and Tillage Management Impacts on Non-CO2 Greenhouse Emissions in Corn/Soybean and Biomass Cropping Systems
Author(s): Smith, D.R., G. Hernandez-Ramirez, S.D. Shalamar, D.L. Bucholtz, and D.E. Stott
Publication Date: 2011
Publication: Soil Sci. Soc. Am. J.
Volume: 75
Page Numbers: 1070-1082

Nitrogen Partitioning and Utilization in Corn Cropping Systems: Rotation, N Source, and N Timing
Author(s): Hernandez-Ramirez, G., S.M. Brouder, D.R. Smith, and G.E. Van Scoyoc
Publication Date: 2011
Publication: Europ. J. Agronomy
Volume: 34
Page Numbers: 90–195

Quantifying Atmospheric Stability Conditions at a Swine Facility and an Adjacent Corn Field in Iowa
Author(s): Hernandez-Ramirez, G., T.J. Sauer, J.L. Hatfield, and J.H. Prueger
Publication Date: 2011
Publication: Theor. Appl. Climatol.
Volume: 105
Page Numbers: 495–503

Contrasting Methods for Estimating Evapotranspiration in Soybean
Author(s): Singer, J.W., J.L. Heitman, G. Hernandez-Ramirez, T.J. Sauer, J.H. Prueger, and J.L. Hatfield
Publication Date: 2010
Publication: Agricultural Water Management
Volume: 98
Page Numbers: 157–163

Energy Balance and Turbulent Flux Partitioning in a Corn-Soybean Rotation in the Midwestern U.S
Author(s): Hernandez-Ramirez, G., J.L. Hatfield, J.H. Prueger, and T.J. Sauer.
Publication Date: 2010
Publication: Theor. Appl. Climatol.
Volume: 100
Page Numbers: 79-92

Carbon and Nitrogen Dynamics in an Eastern Corn Belt Soil: N Source and Rotation
Author(s): Hernandez-Ramirez, G., S.M. Brouder, D.R. Smith, and G.E. Van Scoyoc
Publication Date: 2009
Publication: Soil Sci. Soc. Am. J.
Volume: 73
Page Numbers: 128-137

Greenhouse Gas Fluxes in an Eastern Corn Belt Soil: Weather, N Source and Rotation
Author(s): Hernandez-Ramirez, G., S.M. Brouder, D.R. Smith, and G.E. Van Scoyoc.
Publication Date: 2009
Publication: J. Environ. Qual.
Volume: 38
Page Numbers: 841-854

Nitrous Oxide Emissions from a Bermudagrass Pasture in Arkansas: Poultry Litter and Interseeded Winter Rye
Author(s): Sauer, T.J., S.R. Compston, C.P. West, G. Hernandez-Ramirez, E.E. Gbur, and T.B. Parkin
Publication Date: 2009
Publication: Soil Biol. Biochem.
Volume: 41
Page Numbers: 1417-1424

Nitrous Oxide Production in an Eastern Corn Belt Soil: Sources and Redox Range
Author(s): Hernandez-Ramirez, G., S.M. Brouder, D.R. Smith, G.E. Van Scoyoc, and G. Michalski.
Publication Date: 2009
Publication: Soil Sci. Soc. Am. J.
Volume: 73
Page Numbers: 1182-1191

Soil Water and Shallow Groundwater Relations in an Agricultural Hillslope
Author(s): Logsdon, S.D., G. Hernandez-Ramirez, J.L. Hatfield, T.J. Sauer, J.H. Prueger, and K.E. Schilling
Publication Date: 2009
Publication: Soil Sci. Soc. Am. J.
Volume: 73
Page Numbers: 1461-1468