Using isotopes to understand basic mechanisms regulating ecosystem function, the carbon cycle, and the Earth System
Example publications:
He, Y., S.E. Trumbore, M.S. Torn, J.W. Harden, L. Smith, S.D. Allison, and J.T. Randerson. 2016. Radiocarbon constraints imply reduced carbon uptake by soils during the 21st century. Science. 353: 1419-1424. doi: 10.1126/science.aad4273.
Mouteva, G.O., C.I. Czimczik, S.M. Fahrni, E.B. Wiggins, B.M. Rogers, S. Veraverbeke, X. Xu, G.M. Santos, J. Henderson, C.E. Miller, and J.T. Randerson. 2015. Black carbon aerosol dynamics and isotopic composition in Alaska linked with boreal fire emissions and depth of burn in organic soils. Global Biogeochemical Cycles. doi:.
Bowling, D.R., D.E. Pataki, and J.T. Randerson. 2008. Carbon isotopes in terrestrial ecosystem pools and CO2 fluxes. New Phytologist. Tansley Review. 178: 24-40. doi: 10.1111/j.1469-8137.2007.02342.x.
Riley, W.J., D.Y. Hsueh, J.T. Randerson, M.L. Fischer, J.G. Hatch, D.E. Pataki, W. Wang, and M.L. Goulden. 2008. Where do fossil fuel carbon dioxide emissions from California go? An analysis based on radiocarbon observations and an atmospheric transport model. Journal of Geophysical Research – Biogeosciences. 113: G04002. doi: 10.1029/2007JG000625.
Hsueh, D.Y., N.Y. Krakauer, J.T. Randerson, X. Xu, S.E. Trumbore, J.R. Southon, 2007. Regional patterns of radiocarbon and fossil fuel-derived CO2 in surface air across North America. Geophysical Research Letters. 34: L02816. doi:10.1029/2006GL027032.
Krakauer, N.Y., J.T. Randerson, F.W. Primeau, N. Gruber, D. Menemenlis. 2006. Carbon isotope evidence for the latitudinal distribution and wind speed dependence of the air-sea gas transfer velocity. Tellus 58B: 390-417.
The spatial pattern of atmospheric radiocarbon across North America during the summer of 2004 obtained from annual plants (units of per mil)
The above figure is from Hsueh et al. (2007). Photos of Diana and a Maryland farm.
Randerson, J.T., G.R. van der Werf, G.J. Collatz, L. Giglio, C.J. Still, P. Kasibhatla, J.B. Miller, J.W.C. White, R.S. DeFries, and E.S. Kasischke. 2005. Fire emissions from C3 and C4 vegetation and their influence on interannual variability of atmospheric CO2 and d13CO2. Global Biogeochemical Cycles. 19: GB2019. doi: 10.1029/2004GB002366.
Randerson, J.T., G.J. Collatz, J.E. Fessenden, A.D. Munoz, C.J. Still, J.A. Berry, I.Y. Fung, N. Suits, and A.S. Denning. 2002. A possible global covariance between terrestrial gross primary production and 13C discrimination: Consequences for the atmospheric 13C budget and its response to ENSO. Global Biogeochemical Cycles. 16(4): 1136. doi: 10.1029/2001GB001845.
Randerson, J.T., I. Enting, E.A.G. Schuur, K. Caldiera, and I.Y. Fung. 2002. Seasonal and latitudinal variability of troposphere D14CO2: Post bomb contributions from fossil fuels, oceans, the stratosphere, and the terrestrial biosphere. Global Biogeochemical Cycles. 16(4): 1112. doi: 10.1029/2002GB001876.