Diego Barcellos
Doctoral Student, Dept. of Crop and Soil Science, University of Georgia
UGA - University of Georgia
Barcellos's UGA page
PhD, Soil Science, University of Georgia, 2018
MS, Soil Science, University of Georgia, 2013
BS, Agronomic Engineering, Universidade Federal de Viçosa, 2011
I am interested in soil chemistry/biogeochemistry. In my current PhD program, I am studying the interaction between iron oxides and carbon in soils. Particularly, I am interested in the stabilization of soil organic carbon during redox fluctuations in soils, and determining the role iron plays in this important process. I am part of both Luquillo and Calhoun CZOs. In my MS I worked with phytoremediation of organic contaminants, and in my undergrad (Agronomy) in Brazil I worked with pedology. I am fluent in English, Spanish, and Portuguese (native).
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CZO Publications
Papers/Books
2019
Redoximorphic Bt horizons of the Calhoun CZO soils exhibit depth-dependent iron-oxide crystallinity. Chen, Chunmei, Diego Barcellos, Daniel D. Richter, Paul A. Schroeder, Aaron Thompson (2019): Journal of Soils and Sediments 19(2):785-797
2019
Seasonal and spatial variation in the potential for iron reduction in soils of the Southeastern Piedmont of the US. Hodges, Caitlin, John Mallard, Daniel Markewitz, Diego Barcellos, AaronThompson (2019): CATENA 180: 32-40
2018
Faster redox fluctuations can lead to higher iron reduction rates in humid forest soils. Barcellos, Diego, K. Taylor Cyle, Aaron Thompson (2018): Biogeochemistry 137 (3): 367-378 Cross-CZO
2018
Influence of pO2 on iron redox cycling and anaerobic organic carbon mineralization in a humid tropical forest soil. Chen, Chunmei, Christof Meile, Jared Wilmoth, Diego Barcellos, and Aaron Thompson (2018): Environmental Science & Technology 52 (14): 7709-7719 Cross-CZO
2018
Hot Spots and Hot Moments of Soil Moisture Explain Fluctuations in Iron and Carbon Cycling in a Humid Tropical Forest Soil . Diego Barcellos, Christine S. O’Connell, Whendee Silver, Christof Meile, Aaron Thompson (2018): Soil Systems
Papers and books that explicitly acknowledge a CZO grant are highlighted in PALE ORANGE.
Other CZO Publications
2019
Length of Oxygen Exposure during Redox Oscillations Affects Rates of Iron Reduction, Anaerobic Carbon Mineralization, and Methane Emissions. Barcellos, Diego, Ashley Campbell, Jennifer Pett-Ridge, Aaron Thompson (2019): Soil Science Society of America International Soils Meeting, San Diego, CA, 6-9 January 2019
2018
Biogeochemical cycling of iron and carbon in humid (sub)tropical forest soils under fluctuating redox conditions. Barcellos, Diego (2018): PhD Dissertation, Department of Crop and Soil Sciences, University of Georgia Cross-CZO
2017
Field measurements of soil iron and carbon cycling during spring warm-up in an aggrading pine forest at the Calhoun CZO. Barcellos, D, C Hodges, D Markewitz, E. Ardington, and A Thompson (2017): Soil Science Society of America International Annual Meeting, Tampa, FL, 22-25 Oct. 2017
2017
Hot spots and hot moments for redox, iron and carbon cycling in soils across Luquillo and Calhoun CZOs. Barcellos, D., and Thompson, A. (2017): Critical Zone Science: Current Advances and Future Opportunities, Arlington, VA, 4-6 June, 2017 Cross-CZO
2017
Drivers of redox, iron and carbon in soils from the Calhoun CZO. Barcellos, Diego, Dan Markewitz, Caitlin Hodges, Aaron Thompson (2017): Calhoun CZO 2017 Summer Science Meeting, Union, SC, 17-18 May 2017
2017
Monitoring hot spots and hot moments of redox, iron and carbon cycling in Puerto Rican soils. Barcellos, Diego, Whendee Silver, Christine S. O’Connell, Nadia Noor, and Aaron Thompson (2017): Goldschmidt - Geochemical Conference, Paris, France, Aug 2017
2017
Iron reduction potential in upland soils in CCZO. Chen, Chunmei, Nadia Noor, Diego Barcellos, Caitlin Hodges, and Aaron Thompson (2017): Calhoun CZO 2017 Summer Science Meeting, Union, SC, 17-18 May 2017
2017
Iron cycling under oscillatory redox conditions: from observations to processes (Invited). Meile, Christof D, Chunmei Chen, Diego Barcellos, Jared Wilmoth, Aaron Thompson (2017): American Geophysical Union 2017 Fall Meeting, New Orleans, Louisiana, 11-15 December 2017
2017
The potential for iron reduction in upland soils in Calhoun Critical Zone Observatory. Thompson, Aaron, Chunmei Chen, Nadia Noor, Caitlin Anne Hodges, Diego Barcellos, Daniel deB. Richter (2017): American Geophysical Union 2017 Fall Meeting, New Orleans, Louisiana, 11-15 December 2017
2017
Key features of redox fluctuating soils that influence iron cycling. Thompson, Aaron; Meile, Christof; Wilmoth, Jared; Barcellos, Diego; Chen, Chunmei; Ginn, Brian; Hodges, Caitlin (2017): American Chemical Society National Meeting, San Francisco, CA, 2-6 April 2017
2016
Soil iron reduction and carbon mineralization in reconstructed aggregates during redox fluctuations. Barcellos D, Silver W, Pett-Ridge J, Thompson A (2016): Goldschmidt - Geochemical Conference. Yokohama, Japan
2015
Iron reduction and carbon dynamics during redox fluctuations in soil slurries from Luquillo CZO (Puerto Rico). Barcellos D, Silver W, Pett-Ridge J, Thompson A (2015): American Geophysical Union Meeting, San Francisco, California, USA
2015
Iron reduction rates and carbon mineralization in a soil from Puerto Rico. Barcellos D, Wilmoth J, Cycle T, Thompson A (2015): Goldschmidt - Geochemical Conference, Prague, Czech Republic
2015
Depth Variation of Soil Iron Crystallinity at the Calhoun Critical Zone Observatory. Thompson A, Barcellos D, Wilmoth J, & Richter D (2015): Goldschmidt Conference, Prague, CZ
2015
Depth Variation of Soil Iron Crystallinity at the Calhoun Critical Zone Observatory. Thompson, A., Barcellos, D., Wilmoth, J., and Richter, D. (2015): Calhoun CZO 2015 Summer Science Meeting
2014
Linkages between soil Fe reduction rates and the characteristics of redox fluctuations at the Luquillo CZO, Puerto Rico. Barcellos D, Wilmoth J, Thompson A (2014): All Hands Meeting for the Critical Zone Observatories (CZO) network, Merced, California, USA
2014
Redox fluctuations and carbon stabilization in a tropical soil from Puerto Rico. Barcellos D, Wilmoth J, Thompson A (2014): Plant and Soil Graduate Symposium, University of Georgia, Athens, Georgia
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News
Diego Barcellos Featured in UGA Graduate School Magazine
08 Feb 2017 - The Winter 2017 issue of UGA Graduate features an in-depth article about cross-CZO grad student Diego Barcellos
Eight new soil pits dug at the Calhoun!
17 Oct 2016 - Eight soil pits were installed at the Calhoun CZO on 17-18 October 2016 for easy access for soil sampling down to 2 meters. Photo: Will Cook.
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