Steven Leavitt
Associate Director and Professor, Laboratory of Tree-Ring Research
(520) 621-6468
PhD, Geosciences, University of Arizona, 1982

Steven Leavitt applies stable isotope methods toward resolution of questions related to global and regional change. Isotope dendrochronology provides a novel instrument for reconstructing past environments. He is studying climate and teleconnections from carbon and oxygen isotopes in ponderosa pine in southern Arizona and New Mexico, soil organic carbon dynamics under FACE elevated CO2 conditions, and drought from carbon isotopes in tree rings.

Selected Citations: 

Panyushkina, I. P., Shishov, V. V., Grachev, A. M., Knorre, A. A., Kirdyanov, A. V., Leavitt, S. W., Vaganov, E. A., Chebykin, E. P., Zhuchenko, N. A., Hughes, M. K., 2016. Trends in elemental concentrations of tree rings from the Siberian Arctic. Tree-Ring Research 72(2):67-77. doi: 0.3959/1536-1098-72.02.XX.

Szejner, P., Wright, W. E., Babst, F., Belmecheri, S., Trouet, V., Leavitt, S. W., Ehleringer, J. R., Monson, R. K., 2016. Latitudinal gradients in tree-ring stable carbon and oxygen isotopes reveal differential climate influences of the North American Monsoon System. Journal of Geophysical Research: Biogeosciences. doi: 10.1002/2016JG003460

Voelker, S.L., Stambaugh, M.C., Guyette, R.P., Feng, X., Grimley, D.A., Leavitt, S.W., Panyushkina, I., Grimm.E., Jeremiah P. Marsicek, J.P., Shuman, B., Curry, B., 2015. Deglacial hydroclimate for midcontinental North America. Quaternary Research 83: 336-344 http://dx.doi.org/10.1016/j.yqres.2015.01.001.

Panyushkina, I.P. and Leavitt, S.W., 2015. Tree-ring investigation of Holocene flood-deposited wood from the Oneida Lake watershed, New York State. Tree-Ring Research 71(2):83-94.

Liu, Y., Wang, Y., Li, Q., Song, H., Linderhlom, H.W., Leavitt. S.W., Wang, R., An, Z., 2014. Tree-ring stable carbon isotope-based May-July temperature reconstruction over Nanwutai, China, for the past century and its record of 20th century warming. Quaternary Science Reviews 93:67-76.

Jull, A.J.T., Panyushkina, I.P., Lange, T.E., Kukarskih, V.V., Myglan, V.S., Clark, K.J., Salzer, M.W., Burr, G.S., and Leavitt. S.W., 2014. Excursions in the 14C record at AD 774-775 in tree rings from Russia and America. Geophysical Research Letters doi: 10.1002/2014GL059874.

Research Themes: 
Climate change
Climate variability
Dendrochronology
Drought
Monsoon
Biogeochemical processes
Carbon cycling
Ecohydrology
Geochemical cycles
Soil science
Water
Ecohydrology

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