Masiello, Carrie A. - Rice University - Department of Chemistry

个人简介

B.A. physics and mathematics (1991) Earlham College M.S. Environmental Science (1993) University of North Carolina, Chapel Hill Ph.D. Earth System Science (1999) University of California, Irvine

研究领域

I study the Earth's carbon cycle on timescales from 5 years to 100,000 years. My main interests are in fundamental mechanisms of the carbon cycle and how humans are altering these mechanisms through combustion of fossil fuel, land use change, and erosion. My research uses natural radiocarbon (14C, half-life 5730 years) coupled with organic geochemical tools like wet chemical extractions, 13C NMR, physical separations, chromatographic and spectroscopic studies to address problems related to carbon and climate. By combining geochemical tools with a chronometer (14C) I can answer questions about both mechanisms and timescales of carbon movement between reservoirs. I am particularly interested in problems related to the movement of carbon between fast and intermediate-cycling carbon pools, including the terrestrial biosphere, the atmosphere, rivers, and ocean sediments. New research in my lab includes the development of organic carbon oxidation state (Cox) as a tracer of Earth system processes.

近期论文

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Schneider, M.P.W., L.A. Pyle, K. Clark, W.C. Hockaday, C.A. Masiello, M.W.I. Schmidt (2013) A ‘Molecular Thermometer’ to estimate the charring temperature of wildfire charcoals. ES&T, 47, 11490-11495, doi: 10.1021/es401430f. Coppola, A.I., L.A. Ziolkowski, C.A. Masiello, E.R.M. Druffel. Aged black carbon in marine sediments and sinking particles. in press, Geophys. Res. Lett. Webber, J.B.W., Corbetter, P., Semple, K.T., Ogbonnaya, U., Teel, W.S., Masiello, C.A., Fisher, Q.J., Valenza J.J. II, Song, Y.-Q., Hu, Q. An NMR study of porous rock and biochar containing organic material (2013) Microporous and Mesoporous Materials 178, 94-98, doi: 10.1016/j.micromeso.2013.04.004. Wiedemeier, D.B., S. Abiven, W.C. Hockaday, M. Keiluweit, M. Kleber, C.A. Masiello, A.V. McBeath, P.S. Nico, L.A. Pyle, M.P.W. Schneider, R.J. Smernik, G.L.B. Wiesenberg, M.W.I. Schmidt (2015) Aromaticity and the degree of aromatic condensation of chars. Organic Geochemistry, 78, 135-143, DOI: 10.1016/j.orggeochem.2014.10.002. Brewer, C.E., Chuang, V.J., C.A. Masiello, H. Gonnermann, X. Gao, B. Dugan, L.E. Driver, P. Panzacchi, K. Zygourakis, C.A.Davies (2014) New approaches to measuring biochar density and porosity. Biomass & Bioenergy, 66, 176-185, doi: 10.1016/j.biombioe.2014.03.059. Masiello, C.A., Dugan, B., Brewer, C.E., Spokas, K., Novak, J.M., Liu, Z., Sorrenti, G. Biochar effects on Soil Hydrology. In Biochar for Environmental Management, ed. Johannes Lehmann, published by Earthscan. in press, 2014. Lehmann, J., M. Rillig, J. Thies, C.A. Masiello, W.C. Hockaday, and D. Crowley (2011) Biochar effects on soil biota -- a review. Soil Biology and Biochemistry, 43, 1812-1836, doi: 10.1016/j.soilbio.2011.04.022. Lehmann, J., M. Rillig, J. Thies, C.A. Masiello, W.C. Hockaday, and D. Crowley (in press) Biochar effects on soil biota -- a review. Soil Biology and Biochemistry. G. Sorrenti, C.A. Masiello, M. Toselli Biochar physico-chemical changes as affected by environmental exposure. Soil Biology and Biochemistry Barnes, R.T., M.E. Gallagher, C.A. Masiello, Z. Liu, B. Dugan (2014) Biochar-induced changes in hydraulic conductivity and dissolved nutrient fluxes constrained by laboratory experiments. PLOS One, DOI: 10.1371/journal.pone.0108340. Gallagher, M.E., W.C. Hockaday, C.A. Masiello, S. Snapp, C.P. McSwiney, J.A. Baldock. (2011) Biochemical Disincentives to Fertilizing Cellulosic Ethanol Crops. Environmental Science and Technology. Williams, E.K., B.E. Rosenheim, A.P. McNichol, C.A. Masiello (2014) Charring and non-additive chemical reactions during ramped pyrolysis: applications to the characterization of sedimentary and soil organic material. Organic Geochemistry, 77, 106-114, DOI: 10.1016/j.orggeochem.2014.10.006. Zeng, F.-W., C.A. Masiello, and W.C. Hockaday (2011) Controls on the origin and cycling of riverine dissolved inorganic carbon in the Brazos River, Texas. Biogeochemistry. doi:10.1007/s10533-010-9501-y. Gallagher, M.E., C.A. Masiello, W.C. Hockaday, S. Snapp, C.P. McSwiney, and J.A. Baldock (2014) Controls on the oxidative ratio of net primary production in agricultural ecosystems. Biogeochemistry, 121(3), 581-594, DOI: 10.1007/s10533-014-0024-9. Dong, L., *W.C. Hockaday, C.A. Masiello, P.J.J. Alvarez (2011) Earthworm avoidance of biochar can be mitigated by wetting. Soil Biology and Biochemistry, 43, 1732-1737, doi: 10.1016/j.soilbio.2011.04.019. Hockaday, W.C., M.E. Gallagher, C.A. Masiello, J.A. Baldock, C.M. Iversen, R.J. Norby. Elevated atmospheric carbon dioxide concentrations cause an increased soil carbon oxidation state: implications for future carbon sinks. In revision, JGR-Biogeosciences. Masiello, C. A., & Louchouarn, P. (2013). Fire in the Ocean. Science, 340(6130), 287–288. doi:10.1126/science.1237688. *Kinney, T.J., C.A. Masiello, B. Dugan, *W.C. Hockaday, *M.R. Dean, K. Zygourakis, and *R.T. Barnes. Hydrologic properties of biochars produced at different temperatures. Biomass and Bioenergy, 41, 34-43, doi: 10.1016/j.biombioe.2012.01.033. Liu, Z, B. Dugan, C.A. Masiello, R.T. Barnes, M.E. Gallagher, H. Gonnermann. Impacts of biochar concentration and particle size on hydraulic conductivity and DOC leaching of biochar-sand mixtures, in review, J. Hydrology.