Low temperature (bio)-geochemical processes, carbon dynamics, mineral alteration and weathering, Critical Zone processes
Office Hours: M & W 11:45-12:30
Delehanty Hall, Room 213C
Website: Julia's website
As an environmental bio-geochemist and mineralogist I take a strong interdisciplinary approach to study low temperature environmental terrestrial and aquatic processes by combining experimental and field approaches. The aim of my research is to elucidate how the geosphere, biosphere and hydrosphere interact to shape the Earth’s terrestrial surface, now often termed the Critical Zone (CZ). This Critical Zone can be thought of as the skin of the earth: the terrestrial surface spans from the top of the canopy down to the bedrock - including ground water - and provides us with water, nutrients and many other ecosystem services.
My current overall research goal is to elucidate how low-temperature aquatic and terrestrial biogeochemical processes are impacted by disturbances linked to global environmental change. For this I look at metals, dissolved organic and inorganic carbon in soils and streams with a combination of analytical tools (C-Analyzer, ICP-OES, Ion Chromatography, UVvis-, fluorescence- and FTIR-spectroscopy) and computational quantification (PARAFAC analysis of fluorescence data).
I enjoy teaching in the lab, field and classroom. This year I teach geochemistry (GEOL235, GEOL135) where my students link geochemical principles to global and environmental significance.
J.N. Perdrial, Thompson AA, Chorover J (2015) Soil Geochemistry in the Critical Zone: Influence on Atmosphere, Surface- and Groundwater Composition. In: Giardino JR & Houser C (eds) Principles and Dynamics of the Critical Zone. Developments in Earth Surface Processes. Elsevier. p 173-201
Stielstra C, Brooks PD, Lohse KA, McIntosh JM, Chorover J, Barron-Gafford G, J.N. Perdrial, Barnard HR, Litvak M (2015) Climatic, Landscape, and Edaphic Controls on Soil Carbon Fluxes in Seasonally Snow Covered Forest Ecosystems. Biogeochemistry 123: 447-465
Vázquez-Ortega A, J.N. Perdrial, A. Harpold, X. Zapata, C. Rasmussen, J. McIntosh, M. Schaap, J. Pelletier, P. Brooks, M. K. Amistadi, Chorover J (2015) Rare earth elements as reactive tracers of biogeochemical weathering in forested rhyolitic terrain. Chemical Geology 391 19-3
J.N. Perdrial, Perdrial N, Vazquez-Ortega A, Porter CM, Leedy J, Chorover J (2014) Experimental assessment of fiberglass passive capillary wick sampler (PCap) suitability for sampling inorganic soil solution constituents. Soil Sci Soc Am J 78: 486-495
J.N. Perdrial, J. McIntosh, A. Harpold, P. Brooks, P. Troch, J. Ray, X. Zapata-Rios, C Porter, J.Chorover. (2014). Controls of stream water carbon in seasonally snow-covered mountain catchments: impact of water fluxes, catchment aspect and seasonal processes. Biogeochemistry 118(1-3): 273-290
J.N. Perdrial., N.Perdrial, A. Harpold, X. Gao, R. Gabor, K. LaSharr, J. Chorover 2012. Impacts of sampling dissolved organic matter with capillary wicks versus aqueous soil extraction. Soil Science Society of America Journal. 76 (6):2019-2013.
Chorover J., Troch P.A., Rasmussen C., Brooks P., Pelletier J., Breshears D.D., Huxman T., Lohse K., McIntosh J., Meixner T., Papuga S., Schaap M., Litvak M., Perdrial J.N., Harpold A., and Durcik M. (2011) How Water, Carbon, and Energy Drive Critical Zone Evolution: The Jemez-Santa Catalina Critical Zone Observatory. Vadose Zone Journal 10(3): 884-899
J.N.Perdrial and L.N. Warr (2011). Hydration behavior of MX80 bentonite in a confined volume system: Implications for backfill design. Clays and Clay Minerals 59(6): 640-653.
N. Perdrial, J.N Perdrial, J.E. Delphin, F. Elsass, N. Liewig (2010). Temporal and spatial monitoring of mobile nanoparticles in a vineyard soil: evidence of nanoaggregate formation. European Journal of Soil Science, 61,456-468.
J.N. Perdrial, L.N. Warr, M-C. Lett F. Elsass and N. Perdrial (2009). Interaction between smectite and bacteria: implications for bentonite backfill in nuclear waste disposal. Chemical Geology, 264, 281-294.
L.N. Warr, J.N. Berger, M-C. Lett and M. Kodja (2009). Clay-enhanced bioremediation of marine oil pollution Applied Clay Science,46, 337-345.
L.N. Warr, J.N. Berger (2007). Hydration of bentonite in natural waters: Application of “confined volume” wet-cell X-ray diffractometry. Physics and Chemistry of the Earth 32, 247–258.