Rebecca Lybrand
Active + Alumnus
COLLABORATOR
Former grad student at Catalina-Jemez CZO
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Calhoun, Catalina-Jemez Assistant Professor of Pedology, Dept. of Crop and Soil Science, Oregon State University
Lybrand's page
PhD, Soil, Water & Environmental Science, University of Arizona, 2014
MS, Soil and Water Sciences, University of California, Riverside, 2010
BA, Biology, Whittier College, 2007
Rebecca is collaborating with Paul Schroeder and Jay Austin at the Calhoun CZO on mineral weathering rates and the role of O-horizon fungal activity. This has also become a cross-CZO effort with parallel experiments being done at the Catalina-Jemez CZO. As a graduate student at the University of Arizona, Rebecca studied the effects of climate and landscape position on chemical denudation and mineral transformation in the Santa Catalina Mountains Critical Zone Observatory.
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CZO Publications
Papers/Books
2019
A coupled microscopy approach to assess the nano-landscape of weathering. Lybrand, Rebecca A., Jason C. Austin, Jennifer Fedenko, Rachel E. Gallery, Erin Rooney, Paul A. Schroeder, Dragos G. Zaharescu, & Odeta Qafoku (2019): Scientific Reports 9: Article number 5377 Cross-CZO
2019
A correlative bimodal surface imaging method to assess hyphae-rock interactions. Qafoku, Odeta, Rebecca A. Lybrand, Vaithiyalingam Shutthanandan, Rachel E. Gallery, Jason C. Austin, Paul A. Schroeder, Jennifer Fedenko, Erin Rooney, and Dragos G. Zaharescu (2019): Microscopy and Microanalysis, 25(S2), 2436-2437 Cross-CZO
2018
Climate, topography, and dust influences on the mineral and geochemical evolution of granitic soils in southern Arizona. Lybrand R.A. and Rasmussen C. (2018): Geoderma 314: 245-261
2018
Disturbance Alters the Relative Importance of Topographic and Biogeochemical Controls on Microbial Activity in Temperate Montane Forests. Lybrand R.A., Gallery R.E., Trahan N.A., Moore D.J.P. (2018): Forests 9(2): 97
2018
A net ecosystem carbon budget for snow dominated forested headwater catchments: linking water and carbon fluxes to critical zone carbon storage. Perdrial J., Brooks P.D., Swetnam T., Lohse K.A., Rasmussen C., Litvak M., Harpold A.A., Zapata-Rios X., Broxton P., Mitra B., Meixner M., Condon K., Huckle D., Stielstra C., Vázquez-Ortega A., Lybrand R., Holleran M., Orem C., Pelletier J., Chorover J. (2018): Biogeochemistry 138{3): 225–243 Cross-CZO
2017
Soil organic carbon partitioning and Δ14C variation in desert and conifer ecosystems of southern Arizona. Lybrand R.A., Heckman K., and Rasmussen C. (2017): Biogeochemistry 134(3): 261-277
2015
Critical Zone Services: Expanding Context, Constraints, and Currency beyond Ecosystem Services. Field J.P., Breshears D.D., Law D.J., Villegas J.C., López-Hoffman L., Brooks P.D., Chorover J., Barron-Gafford G.A., Gallery R.E., Litvak M.E., Lybrand R.A., McIntosh J.C., Meixner T., Niu G-Y., Papuga S.A., Pelletier J.D., Rasmussen C.R., and Troch P.A (2015): Vadose Zone Journal 14(1)
2015
Climate and landscape as drivers of carbon storage in forested headwater catchments: Insights from a complete C budget. Perdrial, J., Brooks, P., Swetnam, T., Lohse, K., Rasmussen, C., Litvak, M., Harpold, A., Zapata-Rios, X., Broxton, P., Mitra, B., Meixner, T., Condon, K., Huckle, D., Stielstra, C., Vazquez-Ortega, A., Lybrand, R., Holleran, M., Orem, C., Pelletier, J., and J. Chorover (2015): Global Change Biology
2014
A Cross-scale Study of Feldspar Transformation in the Santa Catalina Mountain Critical Zone Observatory. Lybrand R.A. and Rasmussen C (2014): Procedia Earth and Planetary Science 10: 63–68
2014
Linking soil element-mass-transfer to microscale mineral weathering across a semiarid environmental gradient. Lybrand R.A. and Rasmussen C (2014): Chemical Geology 381: 26-39
2013
Coevolution of nonlinear trends in vegetation, soils, and topography with elevation and slope aspect: A case study in the sky islands of southern Arizona. Pelletier J.D., Barron-Gafford G.A., Breshears D.D., Brooks P.D., Chorover J., Durcik M., Harman C.J., Huxman T.E., Lohse K.A., Lybrand R., Meixner T., McIntosh J.C., Papuga S.A., Rasmussen C., Schaap M., Swetnam T.L., and Troch P.A. (2013): Journal of Geophysical Research: Earth Surface 118(2): 741-758
2011
The effects of climate and landscape position on chemical denudation and mineral transformation in the Santa Catalina mountain critical zone observatory. Lybrand R., Rasmussen C., Jardine A., Troch P.A., and Chorover J. (2011): Applied Geochemistry, 26(S): S80-S84
Papers and books that explicitly acknowledge a CZO grant are highlighted in PALE ORANGE.
Other CZO Publications
2019
Ice Formation and Microbes: A Microscale Perspective on Interactive Biophysical Weathering Agents in the Critical Zone. Lybrand, Rebecca, George Dragos Zaharescu, Jason Austin, Swarup China, Rachel E. Gallery, Paul A. Schroeder, Daniel Veghte, and Odeta Qafoku (2019): ASA-CSSA-SSSA International Annual Meeting, 10-13 Nov. 2019, San Antonio, Texas Cross-CZO
2019
Identifying the organic and inorganic products of incipient weathering in natural environments. Lybrand, Rebecca, Jason Austin, Rosalie Kae Chu, Odeta Qafoku, Tom Resch, Erin Rooney, Paul A Schroeder, Malak M Tfaily, Jason Toyoda, Vaithiyalingam Shutthanandan, Dragos George Zaharescu, Maya Bergmann, Benjamin Pierce, Rachel E Gallery (2019): American Geophysical Union Fall Meeting, San Francisco, CA, December 9-13, 2019 Cross-CZO
2017
Cross-scale perspectives on mineral weathering in the Critical Zone (Invited Presentation). Lybrand, Rebecca, Jason Austin, Paul A. Schroeder, Dragos Zaharescu, Rachel Gallery (2017): Geological Society of America Annual Meeting, Seattle, WA, 22-25 October, 2017 Cross-CZO
2014
The Effects of Climate and Landscape Position on Mineral Weathering and Soil Carbon Storage in the Santa Catalina Critical Zone Observatory of Southern Arizona. Lybrand R.A. (2014): Disertation in Soil, Water & Environmental Science. University of Arizona, Tucson, Arizona, 223 pp
2014
Three-dimensional prediction of soil physical, chemical, and hydrological properties in a forested catchment of the Santa Catalina CZO. Shepard C., Holleran M., Lybrand R., Rasmussen C. (2014): Abstract H51O-0817 presented at 2014 Fall Meeting, AGU, San Francisco, CA, 15-19 Dec.
2013
Climate and landscape position controls on soil carbon cycling in the Santa Catalina Critical Zone Observatory. Lybrand R., Heckman K., Rasmussen C. (2013): Abstract presented at AGU Chapman Conference on Soil-mediated Drivers of Coupled Biogeochemical and Hydrological Processes Across Scales, Biosphere 2, Tucson, Arizona, 21-24 October 2013 (Poster)
2013
Do fire disturbances account for missing C in snow dominated headwater catchments in NM?. Perdrial J.N., Brooks P.D., Swetnam T., Lohse K.A., Rasmussen C., Harpold A.A., Litvak M.E., Broxton P.D., Mitra B., Condon K., Huckle D.M., Vazquez A., Lybrand R.A., Holleran M., Orem C.A., Meixner T., Chorover J. (2013): Abstract B33E-0531 presented at 2013 Fall Meeting, AGU, San Francisco, CA, 9-13 Dec. Cross-CZO
2012
Linking soil element-mass-transfer to microscale mineral weathering in the Santa Catalina Critical Zone Observatory. Lybrand R. A. and Rasmussen C. (2012): Abstract EP42D-03 presented at 2012 Fall Meeting, AGU, San Francisco, Calif., 3-7 Dec (Talk)
2011
Quantifying elemental compositions of primary minerals from granitic rocks and saprolite within the Santa Catalina Mountain Critical Zone Observatory. Lybrand, R.A., Rasmussen, C. (2011): AGU Fall Meeting Presentations (Poster) Abstract B33G-0554.
2010
Climate and landscape controls on chemical weathering - regional to pedon-scale analysis. Rasmussen, C., Lybrand, R., Jardine, A.B., Heidbuechel, I., Troch, P.A., Chorover, J. (2010): AGU Fall Meeting (Invited) Abstract EP42A-02.
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News
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.
Soil, Not Dirt: A Digital Journey Connecting Soils, Plants, and Climate by Rebecca Lybrand
08 Jun 2015 - Join Rebecca on an exciting GoPro adventure to study soil in the desert, grasslands, and pine forests of Arizona.
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Events
ESA Annual Meeting 2016
The Ecological Society of America's Annual Meeting in Fort Lauderdale, Florida
Fort Lauderdale, Florida .
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