Research

Dr. Matthias has expertise in the development and testing of field methods for assessing energy and mass fluxes at the soil-atmosphere interface.  He has worked especially on the design and evaluation of enclosure (chamber) techniques deployed at the soil surface for measurement of nitrous oxide, carbon dioxide, ammonia, and other mass fluxes within terrestrial ecosystems.  His early publications were among the first to report on the accuracy and precision of mass flux measurements by enclosure techniques.  He has assessed how deployment of an enclosure over the soil surface affects the soil environment beneath the enclosure and the measurement of the mass flux under study.  Dr. Matthias is experienced in the measurement of various trace gas concentrations using gas chromatography and other techniques.  He has also worked extensively on the application of the eddy covariance, micro-lysimeter, and sap flow gauge techniques for energy and mass flux measurement over the land surface.   

Employment
1987 - Present Associate Professor
                                    Department of Soil, Water and Environmental Science
                                    University of Arizona.
1981 - 1987     Assistant Professor
                                    Department of Soil and Water Science
                                    University of Arizona.
1979 - 1981     Assistant Professor (non-tenure track)
                                    Department of Soil Science and Biometeorology
                                    Utah State University

Teaching
NATS 101       Introduction to Environmental Science
SWES 210       Introduction to Environmental Science and Sustainability
UNVR 195a    Careers in Environmental Science
SWES 696a     Graduate Seminar

Publications

Book Chapters

2006    Matthias, A.D., S.A. Musil, and H.L. Bohn. Physical and Chemical Characteristics of the Atmosphere.  Ch.  4, p. 46 to 57. In Environmental and Pollution Science. 2nd Edition, I.L. Pepper, C.P. Gerba, and M.L. Brusseau (Eds.) Elsevier Academic Press, San Diego

2006    Matthias, A.D., A.C. Comrie and S.A. Musil. Atmospheric Pollution. Ch.  23, p. 377 to 394. In Environmental and Pollution Science.  2nd Edition, I.L. Pepper, C.P. Gerba, and M.L. Brusseau (Eds.) Elsevier Academic Press, San Diego.

2006    Glenn, E.P. and A.D. Matthias. Global Change. Ch.  24, p. 395 to 411. In Environmental and Pollution Science.  2nd Edition, I.L. Pepper, C.P. Gerba, and M.L. Brusseau (Eds.) Elsevier Academic Press, San Diego

2004    Matthias, A.D. Monitoring Near-Surface Air Quality. Ch.  10, p. 163 to 181. In Environmental Monitoring and Characterization.  J.F. Artiola, I.L. Pepper,  and M.L. Brusseau (Eds.) Elsevier Academic Press, San Diego

1996    Matthias, A.D., and H.L. Bohn. Physical processes affecting atmospheric pollution. p. 19-30, In Pollution Science. I.L. Pepper, C.P. Gerba, and M.L. Brusseau. (Eds) Academic Press, San Diego, CA.

1996    Artiola, J.F., M.L. Brusseau, A.D. Matthias, and S.A. Musil. Environmental monitoring in pollution science.  p. 113-132, in Pollution Science. I.L. Pepper, C.P. Gerba, and M.L. Brusseau. (Eds) Academic Press, San Diego, CA.

1996    Matthias, A.D. Atmospheric pollution. p. 171-187, in Pollution Science.  I.L. Pepper, C.P. Gerba, and M.L. Brusseau. (Eds) Academic Press, San Diego, CA.

Refereed Journal Articles

2008    Welzmiller, J.T., A.D. Matthias, S. White, and T.L. Thompson.  Elevated carbon dioxide effects on soil nitrogen gas exchange in irrigated sorghum.  Soil Sci. Soc. Am. J. (in press, January – February issue).

2007    Cheng, L., S.W Leavitt, B.A. Kimball, P.J. Pinter, Jr., M.J. Ottman,  A.D. Matthias, G.W. Wall, T. Brooks, D.G. Williams, and T.L. Thompson.  Dynamics of labile and recalcitrant soil carbon pools in a sorghum free-air CO2 enrichment (FACE) agroecosystem.  Soil Biology and Biochemistry. 39:2250-2263.

2008    Peralta-Hernandez, A.R., L.R. Barba-Martinez, V.O. Manana-R., A.D. Matthias, J.J. Luna-Ruiz. El Niňo effects on the canicula (mid-summer drought) in central Mexico. Atmosfera. (in review).

2004    Triggs, J.M., B.A. Kimball, P.J. Pinter, Jr., G.W. Wall, M.M. Conley, T.J. Brooks, R.L. LaMorte, N.R. Adam, M.J. Ottman, A.D. Matthias, S.W. Leavitt, and R.S. Cerveny. Free-air carbon dioxide enrichment (FACE) effects on the energy balance and evapotranspiration of sorghum. Agric. For. Meteorol. 124:63-79.

2004    Post, D.F. A.D. Matthias, A.K. Batchily, H. Hosler, and R. Huebner. 2004. Effect of organic and rock mulches on the moisture and temperature of Arizona Soils. J. Arizona-Nevada Academy of Science. 36:11-119.

2003    Derner, J.D., H.B. Johnson, B.A. Kimball, P. J. Pinter, Jr., H. Wayne-Polley, C.R. Tishler, T.W. Boutton, R.L. LaMorte, G.W. Wall, N.R. Adam, S.W. Leavitt, M.J. Ottman, A.D. Matthias, and T.J. Brooks. Above- and below-ground responses of C3-C4 species mixtures in elevated CO2 and soil water availability. Global Change Biology 9:453-460.

2001    Kimball, B.A., C.F. Morris, P.J. Pinter, Jr., G.W. Wall, D.J. Hunsaker, F.J. Adamsen, R.L. LaMorte, S.W. Leavitt, T.L. Thompson, A.D. Matthias, and T.J. Brooks. Wheat grain quality as affected by elevated CO2,drought, and soil nitrogen. New Phytologist 150:295-303.

2001    Cousins, A.B., N.R. Adam, G.W. Wall, B.A. Kimball, P.J. Pinter, Jr., S.W. Leavitt, R.L. LaMorte, A.D. Matthias, M.J. Ottman, T.L. Thompson, and A.N. Webber. Response of C4 photosynthesis to growth under free air carbon dioxide enrichment (FACE): young leaves exhibit higher rates of photorespiration and decreased energy use efficiency. New Phytologist. 150:275-284.

2001    Grant, R.F., B.A. Kimball, T.J. Brooks, G.W. Wall, P.J. Pinter, Jr., D.J. Hunsaker, F.J. Adamsen, R.L. Lamorte, S.W. Leavitt, T.L. Thompson, and A.D. Matthias. Interaction among CO2, N and climate on energy exchange of wheat: model theory and testing with a free air CO2 enrichment (FACE) experiment. Agron. J. 93:638-649.

2001    Adam, N.R., Wall, G.W. B.A. Kimball, P.J. Pinter, Jr.,R.L. LaMorte, D.J. Hunsaker, F,H, Adamsen, T.L. Thompson, A.D. Matthias, S.W. Leavitt, and A.N. Webber. Acclimation response of spring wheat in a free air CO2 enrichment (FACE) atmosphere with variable soil nitrogen regimes: 1. leaf position and phenology determine acclimation response. Photosynthesis Research 66:65-77.

2001    Wall, G.W. N.R. Adam, T.J. Brooks, Kimball, B.A. P.J. Pinter, Jr.,R.L. LaMorte, F.J. Adamsen, D.J. Hunsaker, G.Wechsung, F.Wechsung, S. Grossman-Clark, S.W. Leavitt, A.D. Matthias, and A.N. Webber. Acclimation response of spring wheat in a free air CO2 enrichment (FACE) atmosphere with variable soil nitrogen regimes: 2. net assimilation and stomatal conductance of leaves. Photosynthesis Research 66:79-95.

2001    Brooks, T.J., Wall, G.W. P.J. Pinter, Jr., Kimball, B.A., Jr., R.L. LaMorte, S.W. Leavitt, A.D. Matthias, F.J. Adamsen, D.J. Hunsaker, and A.N. Webber. Acclimation response of spring wheat in a free air CO2 enrichment (FACE) atmosphere with variable soil nitrogen regimes: 3. canopy architecture and gas exchange. Photosynthesis Research 66: 97-108

2001    Wall, G.W., T.J. Brooks, N.R. Adam, A. Cousins, J. Triggs, B.A.Kimball, P.J. Pinter, Jr.,R.L. LaMorte, M.J. Ottman, S.W. Leavitt, A.D. Matthias, D.G. Williams, and A.N. Weber. Elevated atmospheric CO2 improved sorghum plant water status by ameliorating the adverse effects of drought. New Phytologist. 152:231-248.

2001    Leavitt, S.W., E. Pendall, E.A. Paul, T. Brooks, Kimball, B.A. P.J. Pinter, Jr., H.B. Johnson, A.D. Matthias, G.W. Wall, and R.L. LaMorte. Stable-carbon isotopes and soil organic carbon in the 1996 and 1997 FACE wheat experiments. New Phytologist 150:305-314.

2001    Ottman, M.J., Kimball, B.A., P.J. Pinter, Jr., G.W. Wall, R.L. Vanderlip, S.W. Leavitt, R.L. LaMorte, A.D. Matthias, and T.J. Brooks. Elevated CO2 effects on sorghum growth and yield at high and low soil water content. New Phytologist 150:261-273. 151:407-412.

2001    Conley , M. M.,  B. A. Kimball, T. J. Brooks, P. J. Pinter Jr., D. J. Hunsaker, G. W. Wall, N. R. Adam, R. L. LaMorte, A. D. Matthias, T. L. Thompson, S. W. Leavitt, M. J. Ottman, A. B. Cousins, and J. M. Triggs. CO2 enrichment increases water-use efficiency in sorghum.  New Phytologist 151:407-412.

2001    Pendall, E. S.W. Leavitt, T. Brooks, B.A. Kimball, P.J. Pinter, Jr., G.W. Wall, R.L. LaMorte, G. Wechsung, F. Adamsen, A.D. Matthias, T.L. Thompson.  Elevated CO2 stimulates soil respiration in a FACE wheat field. Basic Appl. Ecol. 2:193-201.

2000    Matthias, A.D., A. Fimbres, E.E. Sano, D.F. Post, L. Accioly, A.K. Batchily and L.G. Ferreira. Surface roughness effects on soil albedo. Soil Sci. Soc. Am. J. 64:1035-1041.

2000    Post, D.F., A. Fimbres, A.D. Matthias, E.E. Sano, L. Accioly, A.K. Batchily and L.G. Ferreira. Predicting soil albedo from soil color and spectral reflectance data. Soil Sci. Soc. Am. J. 64:1027-1034.

2000    Sinclair, T.R., P.J. Pinter, Jr., B.A. Kimball, R.L., F.J. Adamsen, LaMorte, G.W. Wall, D.J.Hunsaker, N. Adam, T.J. Brooks, R.L. Garcia, T. Thompson, S. Leavitt and A. Matthias. Leaf nitrogen concentration of wheat subjected to elevated CO2 (FACE) and either water or N deficits. Agric. Ecosys. Environ. 79:53-60.

2000    Pinter, Jr. P.J.   B.A. Kimball, G.W. Wall, R.L. LaMorte, D.J. Hunsaker, F.J. Adamsen, K.F.A. Frumau, H.F. Vugts, G.R. Hendrey, K.F. Lewin, J. Nagy, H.B. Johnson, F. Wechsung, S.W. Leavitt, T.L. Thompson, A.D. Matthias, and T.J. Brooks. Free-air CO2 enrichment (FACE) effects on wheat canopy microclimate and plant development.  Agric. For. Meteorol. 103: 319-333.

2000    Wechsung, F., R.L. Garcia, G.W. Wall, T. Kartschall, B.A. Kimball, P. Michaelis, P.J. Pinter, Jr., G. Wechsung, S. Grossman-Clarke, R.L. LaMorte, F. J. Adamsen, S.W. Leavitt, T.L. Thompson, A.D. Matthias and T.J. Brooks.  Photosynthesis and conductance of spring wheat ears: Field response to free air CO2  enrichment and limitations in water and nitrogen supply. Plant, Cell and Environment. 23:917-930.

1999    Kimball, B.A., R.L. LaMorte, P.J. Pinter, Jr., G.W. Wall, D.J. Hunsaker, F.J. Adamsen, S.W. Leavitt, T.L. Thompson, A.D. Matthias, and T.J. Brooks. Free-air CO2 enrichment (FACE) and soil nitrogen effects on energy balance and evapotranspiration of wheat. Water Resources Res. 35:1179-1190

1999    Matthias, A.D., D.F. Post, L. Accioly, A. Fimbres, E.E. Sano and A.K. Batchily. Measurement of albedos for small areas of soil.  Soil Science. 164:293-301

1998    Matthias, A.D., and A.R. Peralta-Hernandez. Modeling temperatures in soil under an opaque cylindrical enclosure. Agric. For. Meteorol. 90:27-38

1998    Guilbault, M.R., and A.D. Matthias. Emissions of N2O from Sonoran Desert and effluent-irrigated grass ecosystems. J. Arid Environments. 38:87-98

1995    Evett, S.R., A.W. Warrick, and A.D. Matthias. Wall material and capping effects on microlysimeter temperatures and evaporation. Soil Sci. Soc. Am. J. 59:329-336.

1994    Jalali-Farahani, H.R., D.C. Slack, D.M. Kopec, A.D. Matthias, and P.W. Brown. Evaluation of resistances for bermuda turf crop water stress index models. Agron. J. 86:574-581.

1994    Evett, S.R., A.D. Matthias, and A.W. Warrick. Energy balance model of spatially variable evaporation from bare soil. Soil Sci. Soc. Am. J.  58:1604-1611.

1993    Matthias, A.D., J.F. Artiola, and S.A. Musil. Preliminary study of N2O flux over irrigated bermudagrass in a desert environment. Agric. For. Meteorol. 64:29-45.

1993    Jalali-Farahani, H.R., D.C. Slack, D.M. Kopec, and A.D. Matthias. Crop water stress index models for bermuda turf: A comparison. Agron. J. 85:1210-1217.

1992    Roundy, B.A., Winkel, V.K., H. Khalifa, and A.D. Matthias.  Soil water availability and temperature dynamics after one-time heavy cattle trampling and land imprinting. Arid Soil Research and Rehabilitation. 6:53-69.

1992    Matthias, A.D. Aerodynamic parameters and turbulent heat transfer over wheat. Wetter und Leben 44:61-67.

1992    Ottoni, T.B., A.D. Matthias, A.F. Guerra, and D.C. Slack. Comparison of three resistance methods for estimating heat flux under stable conditions. Agric. For. Meteorol. 58:1-18.

1992    Morsi, T.H., A.D. Matthias, and J.L. Stroehlein. Type of trellis affects radiation absorption and must composition, but not yield of `Petite Sirah' grapes. Hortscience 27:20-22.

1991    Dugas, W.A., L.J. Fritschen, L.W. Gay, A.A. Held, A.D. Matthias, D.C. Reicosky, P. Steduto, and J.L. Steiner. Bowen ratio, eddy correlation, and portable chamber measurements of sensible and latent heat flux over irrigated spring wheat. Agric. For. Meteorol. 56:1-20.

1990 Matthias, A.D.  Simulation of daily energy budget and mean soil temperatures at an arid site. Theor. Appl. Climatol. 42:3-17.

1990    Matthias, A.D., W.P. Kustas, L.W. Gay, D.I. Cooper, L.M. Alves, and P.J. Pinter, Jr.  Aerodynamic parameters for a sparsely roughened surface composed of small cotton plants and ridged soil.  Remote Sensing of Environ.  32:125-141.

1990    Kustas, W.P., M.S. Moran, P.J. Pinter, Jr., R.D. Jackson, L.W. Gay, L.F. Duell, K.E. Kunkel, and A.D. Matthias.  Instantaneous and daily values of the surface energy balance over agricultural fields using remote sensing and a reference field in an arid environment.  Remote Sensing of Environ.  32:125-141.

1988    Yates, S.R., A.W. Warrick, A.D. Matthias, and S. Musil.  Spatial variability of remotely sensed surface temperatures at field scale.  Soil Sci. Soc. Am. J.  52:40-45.
1987    Matthias, A.D., S.R. Yates, R. Zhang, and A.W. Warrick.  Radiant temperatures of sparse plant canopies and soil using IR thermometry.  IEEE Trans. Geosci. and Remote Sens.  GE-25:516-520.

1987    Matthias, A.D., and A.W. Warrick.  Simulation of soil temperatures with sparse data.  Soil Science.  144:394-402.

1987    Ottoni, T.B., A.D. Matthias, and A.W. Warrick.  Field estimates of alfalfa evapotranspiration by energy balance-resistance modeling.  Theor. Appl. Climatol. 38:15-23.

1986    Matthias, A.D. and W.E. Coates.  Wine grape vine radiation balance and temperature modification with fine-mist nozzles.  Hortscience 21:1453-1455.

1986    Matthias, A.D., H.M. Hassan, Yu-Qi Hu, J.E. Watson, and A.W. Warrick.  Evapotranspiration estimates derived from subsoil salinity data.  J. Hydrol. 85:209-223.

1986    Matthias, A.D., and N. Ferguson.  Superior-mirage photographs: Evidence of complex air temperature profiles in Sonoran Desert valleys.  Bull. Amer. Meteor. Soc.  67:1266-1271.

1986    Matthias, A.D., R. Salehi, and A.W. Warrick.  Bare soil evaporation near a point-source emitter.  Agric. Water Manage.  11:257-277.

1986    Watson, J.E., A.D. Matthias, and R. Gibson.  Historical irrigation effiencies from soil salinity samples.  Appl. Agric. Res.  1:82-84.

1984    Hares, M.A., J. Ben-Asher, A.D. Matthias, and A.W. Warrick.  A simple method to evaluate daily positive soil heat flux.  Soil Sci. Soc. Am. J.  49:45-47.

1983    Ben-Asher, J., A.D. Matthias, and A.W. Warrick.  Assessment of evaporation from bare soil by infrared thermometry.  Soil Sci. Soc. Am. J.  47:185-191.

1983    Diaz, R.A., A.D. Matthias, and R.J. Hanks.  Evapotranspiration and yield estimation of spring wheat from canopy temperature.  Agron. J. 75:805-810.

1980    Matthias, A.D., A.M. Blackmer, and J.M. Bremner. A simple chamber technique for field measurement of emissions of nitrous oxide from soils.  J. Environ. Qual.  9:251-256.

1979    Matthias, A.D., A.M. Blackmer, and J.M. Bremner. Diurnal variability in the concentration of nitrous oxide in surface air.  Geophys. Res. Lett.  6:441-443.

1978    Matthias, A.D., D.N. Yarger, and R.S. Weinbeck. A numerical evaluation of chamber methods for determining gas fluxes.  Geophys. Res. Lett.  5:765-768.