Publications

Physiological and environmental regulation of inter-annual variability in CO2 exchange on rangelands in the western USA - (Peer Reviewed Journal) - (27-Apr-09)

Effects of N fertilization and supplementation strategies on forage intake, dietary selection, and performance of growing beef cattle. - (Abstract) - (09-Mar-09)

Seasonal and inter-annual variability in rangeland NEE: Contributions of climatic anomalies and fluctuations in daytime and night-time CO2 fluxes - (Abstract)

Polley, H.W., Emmerich, W.E., Bradford, J.A., Sims, P.L., Johnson, D.A., Saliendra, N.Z., Svejcar, A.J., Angell, R.F., Frank, A.B., Phillips, B.L., Snyder, K.A., Morgan, J.A. 2008. Seasonal and inter-annual variability in rangeland NEE: Contributions of climatic anomalies and fluctuations in daytime and night-time CO2 fluxes. In: Proceedings of the Ecological Society of America, August 3-8, 2008, Milwaukee, Wisconsin. 2008 CDROM.

Carbon Fluxes on North American Rangelands - (Peer Reviewed Journal)

Svejcar, A.J., Angell, R.F., Bradford, J., Dugas, W., Emmerich, W.E., Frank, A.B., Gilmanov, T., Haferkamp, M.R., Johnson, D.A., Mayeux Jr, H.S., Mielnick, P., Morgan, J.A., Saliendra, N., Schuman, G.E., Sims, P.L., Snyder, K.A. 2008. Carbon fluxes on north american rangelands. Rangeland Ecology and Management. 61:465-474.

Do Rangelands Store Carbon? - (Peer Reviewed Journal) - (15-Apr-08)

Moderate and Heavy Grazing Impacts on Carbon Flux in a Southern Plains Mixed-Grass Prairie - (Abstract)

Sims, P.L., Bradford, J.A. 2006. Moderate and heavy grazing impacts on carbon flux in a southern plains mixed-grass prairie [abstract]. Society for Range Management 59th Annual Meeting, February 5-11, 2005, Vancouver, Canada, Abstract No. 334. p. 219. 2006 CDROM.

Managing Grassland As a Co2 Sink - (Proceedings/Symposium)

Morgan, J.A., Baron, V.S., Bradford, J.A., Haferkamp, M.R., Sims, P.L., Skinner, H. 2005. Managing grassland as a co2 sink. ASA-CSSA-SSSA Annual Meeting Abstracts.

Quantification of Co2 Exchange in Grassland Ecosystems of the World Using Tower Measurements, Modeling and Remote Sensing 1653 - (Proceedings/Symposium)

Gilmanov, T.G., Demment, M.W., Wylie, B.K., Laca, E.A., Akshalov, K., Baldocchi, D.D., Belelli, L., Bradford, J.A., Coulter, R.L., Dugas, W.A., Emmerich, W.E., Flanagan, L.B., Frank, A.B., Haferkamp, M.R., Johnson, D.A., Meyers, T.P., Morgan, J.A., Nasyrov, M., Owensby, C.E., Pekour, M.S., Pilegaard, K., Saliendra, N.Z., Sanz, M.J., Sims, P.L., Soussana, J.F., Tieszen, L.L., Verma, S.B. 2005. Quantification of co2 exchange in grassland ecosystems of the world using tower measurements, modeling and remote sensing. In: Proceedings of the 20th International Grassland Congress. June 26 - July 1, 2005, University College, Dublin Ireland. p. 587.

Carbon Dioxide and Evapotranspiration Fluxes Across Grassland and Sand Sagebrush Dominated Mixed Prairie - (Abstract)

Sims, P.L., Bradford, J.A. 2004. Carbon dioxide and evapotranspiration fluxes across grassland and sand sagebrush dominated mixed prairie [abstract]. Wildland Shrub Symposium. p. 60.

Gross Primary Production and Light Response Parameters of Four Southern Plains Ecosystems Estimated Using Long-Term Co2-Flux Tower Measurements - (Peer Reviewed Journal)

Gilmanov, T.G., Verma, S.B., Sims, P.L., Meyers, T.P., Bradford, J.A., Burba, G.G., Suyker, A.E. 2003. Gross primary production and light response parameters of four southern plains ecosystems estimated using long-term co2-flux tower measurements. Global Biogeochemical Cycles. 17(2)1071. p. 40-1 to 40-16.

Evapotranspiration in Southern Plains Mixed-Grass Prairies - (Proceedings/Symposium)

SIMS, P.L., BRADFORD, J.A. 2003. EVAPOTRANSPIRATION IN SOUTHERN PLAINS MIXED-GRASS PRAIRIES. INTERNATIONAL RANGELAND CONGRESS. pp. 1094-1096.

Characterization of the Carbon Storage Potential of U.S. Rangelands with Long-Term Co2 Flux Measurements - (Abstract)

SVEJCAR, A.J., MAYEUX JR, H.S., JOHNSON, D.A., FRANK, A.B., GILMANOV, T., ANGELL, R.F., MORGAN, J.A., SIMS, P.L., BRADFORD, J.A., SALIENDRA, N.Z., EMMERICH, W.E., SCHUMAN, G.E., HAFERKAMP, M.R., MITCHELL, K. CHARACTERIZATION OF THE CARBON STORAGE POTENTIAL OF U.S. RANGELANDS WITH LONG-TERM CO2 FLUX MEASUREMENTS. SOCIETY FOR RANGE MANAGEMENT MEETING ABSTRACTS. 2003. V. 56.

The ARS Rangelands Co2 Flux Network: Do Rangelands Sequester Carbon? - (Abstract)

Mayeux, H.S., Dugas, B., Svejcar, A.J., Angell, R.F., Johnson, D.A., Frank, A.B., Emmerich, W.E., Morgan, J.A., Sims, P.L., Bradford, J.A. 2003. The ARS rangelands CO2 flux network: Do rangelands sequester carbon? Proceedings of the 7th International Rangeland Congress. p. 1083-1084.

The USDA-ARS Co2 Flux Network: Variation in Rangeland Co2 Flux Across Years and Ecosystems - (Proceedings/Symposium) - (01-Jul-02)

The USDA-ARS Co2 Flux Network: Variation in Rangeland Co2 Flux Across Years and Ecosystems - (Proceedings/Symposium)

SVEJCAR, A.J., DUGAS, W., MAYEUX JR, H.S., JOHNSON, D.A., FRANK, A.B., GILMANOV, T.G., ANGELL, R.F., MORGAN, J.A., SIMS, P.L., BRADFORD, J.A. THE USDA-ARS CO2 FLUX NETWORK: VARIATION IN RANGELAND CO2 FLUX ACROSS YEARS AND ECOSYSTEMS. AGRICULTURAL AND FOREST METEOROLOGY. 2002. P. 37-38.