Postdoctoral Scholar, Department of Crop & Soil Sciences, Environmental Soil Chemistry Lab, University of Georgia
UGA - University of Georgia
Ph.D., Plant and Soil Sciences, University of Delaware, 2013
M.S., Environmental Science, Institute of Soil Science, Chinese Academy of Sciences, 2007
B.S. , Agricultural Resources and Environment, Nanjing Agricultural University, 2004
My research is focusing on the interactions between organic matter and minerals under different landscape topographic positions at the molecular scale. By targeting a hillslope transect and a floodplain within the Christina River Basin Critical Zone Observatory (CRB-CZO), I am specifically looking at: (1) the structural composition of soil organic matter by using C NEXAFS and ATR-FTIR techniques; (2) soil Fe speciation by employing synchrotron-based XAS; (3) the associations of C with specific minerals in soils via using STXM coupled C NEXAFS and TEM-EELS.
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
Ferrous iron oxidation under varying pO2 levels: The effect of Fe(III)/Al(III) oxide minerals and organic matter. Chen, Chunmei, and Aaron Thompson (2018): Environmental Science & Technology 52 (2): 597–606
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
2015 (In Press)
Multi-elemental scanning transmission X-ray microscopy–near edge X-ray absorption fine structure spectroscopy assessment of organo–mineral associations in soils from reduced environments. Chen, C. and D.L. Sparks (2015): Environmental Chemistry
Properties of Fe-organic matter associations via coprecipitation versus adsorption. Chen, C., J. Dynes, J. Wang and D.L. Sparks (2014): Environ. Sci. Technol. 48 (23):13751–13759
Soft X-ray Spectromicroscopy Study of Mineral-Organic Matter Associations in Pasture Soil Clay Fractions. Chen, C., J. Dynes, J. Wang, T. Regier, C. Karunakaran, and D.L. Sparks (2014): Environ. Sci. Technol., 2014, 48 (12), pp 6678–6686
Papers and books that explicitly acknowledge a CZO grant are highlighted in PALE ORANGE.
The impact of O2 concentrations and organic matter on Fe(II) oxidation and the resulting Fe(III) solids in the presence of Fe/Al oxide sorbents. Chen, C., and Thompson, A. (2017): Critical Zone Science: Current Advances and Future Opportunities, Arlington, VA, 4-6 June, 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
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
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
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
Investigating Organic Matter-Mineral Interactions at the Molecular Scale: An Integrated Field and Laboratory Study. Chen, Chunmei (2013): University of Delaware Ph.D. dissertation
Biogeochemical transformation of Fe- and Mn- along a redox gradient: Implications for carbon sequestration within the Christina River Basin Critical Zone Observatory. Olesya Lazareva, Donald L. Sparks, Anthony Aufdenkampe, Jinjun Kan, Steven Hicks, Joshua LeMonte, Weinan Pan, Chunmei Chen (2012): 243rd ACS National Meeting and Exposition, San Diego, California, March 25 - 29.
The role of metal redox coupling processes in carbon cycling and stabilization. Sparks, D.L., Chen, C., Lazareva, O., LeMonte, J., Wang, J., Regier, T., and Dynes, J.J. (2012): Goldschmidt Conference, Montreal, Canada, June 24-29.
Distribution and Speciation of Soil Organic Carbon along Hillslope Transects: Importance of Fe-redox Cycling . Chen, C. Leinweber, P., Aufdenkampe, A.K. and Sparks, D.L.. (2011): CZO National Meeting, Tuscon, Arizona, May 8-12
Soil Organic Matter-Mineral Interactions Along Hillslope Transects: Importance of Iron-Redox Coupling Processes. Chen, C., Leinweber, P., Aufdenkampe, A., Wang, J., Dynes, J. J., and Sparks, D.L. (2011): ASA-CSSA-SSSA 2011 International Annual Meetings, "Fundamental for Life: Soil, Crop, & Environmental Sciences," San Antonio, TX, Oct. 16-19.
Christina River Basin Critical Zone Observatory: Carbon-mineral interactions from molecular to basin scales in the Anthropocene. Yoo, K., Aufdenkampe, A., Chen, C. and Sparks, D.L.. (2011): Invited Talk, Goldschmidt 2011 conference, Prague, Czech Republic, August 14-19. p. 1224.
Distribution, Speciation, and Elemental Associations of Soil Organic Carbon under Varying Landscape Topographic Positions at the Molecular Scale. Chen, C., Aufdenkampe, A.K., Yoo K., and Sparks D.L. (2010): 3rd Annual National CZO PI meeting, Boulder, CO, September 13-15.
Extending the Interdisciplinary Interfaces of Geomorphology by Changing the Units of Key Variables: From Volumes to Masses to Areas . Yoo, K., A.K. Aufdenkampe, B.A. Weinman, S.M. Mudd, C. Chen. (2010): Abstract EP43A-0749. AGU Fall Meeting, San Francisco, CA, December 13-17.
08 Feb 2017 - The Winter 2017 issue of UGA Graduate features an in-depth article about cross-CZO grad student Diego Barcellos
30 Nov 2011 - Chunmei Chen, a University of Delaware doctoral student in the Department of Plant and Soil Sciences, was chosen to receive the Dixon Award for best...
22 Jun 2010 - The National Science Foundation’s Science360 daily news service website has posted a video that includes a segment on the Christina River...
28 Sep 2009 - The University of Delaware, in collaboration with Stroud Water Research Center in Avondale, Pa., has received a $4.3 million grant from the National...