Caitlin Hodges
Active + Alumnus
GRAD STUDENT
PhD Student (Shale Hills CZO), MS student alumna (Calhoun CZO)
.(JavaScript must be enabled to view this email address)
Calhoun, Shale Hills PhD Graduate Student, Pennsylvania State University
Hodges's page
PhD, Soil Science, The Pennsylvania State University, In Progress
MS, Ecology, University of Georgia, 2017
BSES, Water and Soil Resources, University of Georgia, 2014
I’m fascinated by the effects of the temporal and spatial distribution of water across a landscape on microbial respiration and carbon/nutrient mineralization. Of interest to me is the use of alternate terminal electron acceptors in microsites of soils typically considered to be oxic. Through my previous work at the Calhoun CZO, I documented periodically high potential for Fe respiration in well-drained upland soils under high soil moisture conditions. Using this knowledge, I plan to track the effects of NO3-, Mn+4, Fe+3 respiration across the landscapes of the SSHCZO. Adviser: Jason Kaye. General CZO interests: Biogeochemistry, Soil Science/Pedology, Water Chemistry
-
CZO Publications
Papers/Books
2019
Soil CO2 and O2 concentrations illuminate the relative importance of weathering and respiration to seasonal soil gas fluctuations. Hodges, Caitlin, Hyojin Kim, Susan L. Brantley, Jason Kaye (2019): Soil Science Society of America Journal (accepted)
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
Potential for iron reduction increases with rainfall in montane basaltic soils of Hawaii. Hodges, C., E. King, J. Pett-Ridge, A. Thompson (2018): Soil Science Society of America Journal 82:176-185 Cross-CZO
Papers and books that explicitly acknowledge a CZO grant are highlighted in PALE ORANGE.
Other CZO Publications
2019
EAGER SitS: Emergent Properties during Soil Formation at the Susquehanna Shale Hills Critical Zone Observatory. Brantley, S.L., Nyblade, A., Regan, J., Forsythe, B., Hodges, C., Kaye, J. (2019): NSF/DARPA/ARPA-E Signals in the Soil Conference in the National Science Foundation, Alexandria, Virginia
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
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
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
Water and carbon influence the distribution of iron reduction at the Calhoun CZO. Hodges, C., Mallard, J., Markewitz, D., and Thompson, A. (2017): University of Georgia Plant and Soil Symposium, Athens, GA
2017
Drivers and Variability of Iron Reduction in Upland Soils. Hodges, Caitlin (2017): M.S. Thesis, Department of Crop & Soil Sciences, University of Georgia
2017
Seasonal variation of Fe reduction at the Calhoun CZO. Hodges, Caitlin, John Mallard, Dan Markewitz, Aaron Thompson (2017): Calhoun CZO 2017 Summer Science Meeting, Union, SC, 17-18 May 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
Variation of iron reduction with depth over time at the Calhoun CZO. Hodges, C. (2016): Calhoun CZO 2016 Summer Science Meeting, Clinton, SC
2016
Probing iron reduction from cm to km scales in forested ecosystems. Hodges, C., and A. Thompson (2016): Soil Science Society of America Annual Meeting, Minneapolis, MN
2016
Linking spatial and temporal patterns of soil moisture with iron reduction at the Calhoun CZO. Hodges, C., D. Markewitz, and A. Thompson (2016): Soil Science Society of Georgia Annual Meeting, Athens, GA
2016
Linking spatial and temporal patterns of soil moisture with iron reduction at the Calhoun CZO. Hodges, C., D. Markewitz, and A. Thompson (2016): University of Georgia Agronomy Graduate Student Association Annual Poster Session, Athens, GA
2016
Temporal variation of water and carbon influence the distribution of upland iron reduction in soils. Hodges, C., Mallard, J., Markewitz, D., Thompson, A., and McGlynn, B. (2016): Soil Science Society of America Annual Meeting, Phoenix, AZ, 6-9 November 2016
2015
Sample Modeling for Soil Phosphorus at the Calhoun CZO via GIS Applications. Foroughi, M., D. Markewitz, and C. A. Hodges (2015): Calhoun CZO 2015 Summer Science Meeting
2015
Using Electromagnetic Induction to Determine Spatial and Temporal Patterns of Iron Reduction at the Calhoun CZO. Hodges, C., Markewitz, D., and Thompson, A. (2015): Calhoun CZO 2015 Summer Science Meeting
2015
Linking spatial and temporal patterns of soil moisture with upland soil iron reduction. Hodges, C.; Markewitz, D.; Thompson, A. (2015): American Geophysical Union Fall Meeting, December 2015, San Francisco, CA
2015
Delineating climatic regions where upland soil iron reduction is potentially important at the ecosystem scale. Thompson, A.; Hodges, C.; Chadwick, O. (2015): American Geophysical Union Fall Meeting, December 2015, San Francisco, CA
-
News
Shale Hills Critical Zone Observatory Hosts SciWri19 Field Tour
29 Oct 2019 - Members of the Susquehanna Shale Hills Critical Zone Observatory gave a tour of the CZO to nearly 30 science writers during the SciWri19 conference he
Field trip of Penn State students to the Calhoun, 6/7/2019
21 Aug 2019 - Dan Markewitz and Dan Richter led a field trip on June 6-7, 2019 in the rain (perhaps 3") across the Calhoun CZO with Penn State students. We...
Graduate Student Critical Zone Reading Group Wraps the Semester with a Field Trip to Calhoun CZO
12 Jun 2019 - Five students travelled to Union, South Carolina for a two-day site visit June 6 – June 8 at the Calhoun CZO. This site visit was the...
Two new CZO team members begin subsurface investigations at Cole Farm
10 Nov 2017 - Perri Silverhart, MS Student Geosciences, and Caitlin Hodges, PhD Student Soil Science, begin the field component of their research at Cole...
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.
Explore Further
