Publications: Stable Isotope Ecology and Hydrology Lab: Purdue University Skip to main content



Oh, Y., Q. Zhuang, L. Liu, L.R. Welp, M.C.Y. Lau, T.C. Onstott, D. Medvigy, L. Bruhwiler, E.J. Dlugokencky, G. Hugelius, L. D’Imperio, and B. Elberling (2020) Reduced net methane emissions due to microbial methane oxidation in a warmer Arctic, Nature Climate Change, doi: 10.1038/s41558-020-0734-z.

He, Z., L. Lei, Z.C. Zeng, M. Sheng, L.R. Welp (2020) Evidence of carbon uptake associated with vegetation greening trends in eastern China, Remote Sensing, 12, 718, doi:10.3390/rs12040718.


Salmon, O.E., L.R. Welp, M. Baldwin, K. Hajny, B.H. Stirm, and P.B. Shepson (2019) Vertical profile observations of water vapor deuterium excess in the lower troposphere, Atmospheric Chemistry and Physics, 19 (17), 11525-11543, doi: 10.5194/acp-19-11525-2019.

Gorthi, A., J. Volenec, and L.R. Welp (2019) Stomatal response in soybean during drought improves leaf and field-scale water use efficiencies, Agriculture and Forest Meteorology, 276-277, 107629, doi:10.1016/j.agroformet.2019.107629.

Zhu, P., Q. Zhuang, L.R. Welp, P. Ciais, M. Heimann, B. Peng, W. Li, C. Bernacchi, C. Roedenbeck, and T.F. Keenan (2019) Recent warming has resulted in smaller gains in net carbon uptake in northern high latitudes, Journal of Climate, doi:10.1175/JCLI-D-18-0653.1.


He, Z., L. Lei, L.R. Welp, Z.C. Zeng, N. Bie, and L. Liu (2018) Detection of spatiotemporal extreme changes in atmospheric CO2 concentration based on satellite observations, Remote Sensing, 10(6), 839, doi:10.3390/rs10060839. 


Keeling, R.F., Graven, H.D., Welp, L.R., Resplandy, L., Bi, J., Piper, S.C., Sun, Y., Bollenbacher, A. and Meijer, H.A.J. (2017) Atmospheric evidence for a global secular increase in carbon isotopic discrimination of land photosynthesisP. Natl. Acad. Sci. USA, 8, 201619240, doi:10.3402/tellusb.v39i1-2.15325.

Zhu, P., Q. Zhuang, P. Ciais, L. Welp, W. Li, Q. Xin (2017) Elevated atmospheric CO2 negatively impacts photosynthesis through radiative forcing and physiology-mediated climate feedbacks, Geophysical Research Letters, 44(4), p. 1956-1963, doi:10.1002/2016GL017133.


Trugman, A.T., N.J. Fenton, Y. Bergeron, X. Xu, L.R. Welp, D. Medvigy (2016) Climate, soil organic layer, and nitrogen jointly drive forest development after fire in the North American boreal zone, Journal of Advances in Modeling Earth Systems, doi:10.1002/2015MS000576.

Welp, L.R., P.K. Patra, R.F. Keeling, R.R. Nemani, S.C. Piper, et al. (2016) Increasing summer net CO2 uptake in high northern ecosystems inferred from atmospheric inversions and remote sensing, Atmospheric Chemistry and Physics, doi:10.5194/acp-2016-10.

Griffis, T.J, J.D. Wood, J.M. Baker, X. Lee, K. Xiao, Z. Chen, L.R. Welp, N.M. Schultz, G. Gorski, M. Chen, J. Nieber (2016) Investigating the source, transport, and isotope composition of water vapor in the planetary boundary layer, Atmospheric Chemistry and Physics, doi:10.5194/acp-2015-923.


Graven, H.D., R.F. Keeling, S.C. Piper, P.K. Patra, B.B. Stephens, S.C. Wofsy, L.R. Welp, C. Sweeney, P.P. Tans, J.J. Kelley, B.C. Daube, E.A. Kort, G.W. Santoni, and J.D. Bent (2013) Enhanced seasonal exchange of CO2 by northern ecosystems since 1960Science, 341(6150), 1085-1089, doi:10.1126/science.1239207.

Welp, L.R., R.F. Keeling, R.F. Weiss, W. Paplawsky, and S. Heckman (2013) Design and performance of a Nafion dryer for continuous operation at CO2 and CH4 air monitoring sitesAtmospheric Measurement Techniques6(5), 1217-1226, doi:10.5194/amt-6-1217-2013.

Huang, S., H. Liu, D. Dahal, S. Jin, L. Welp, J. Liu, S. Liu (2013) Modeling spatially explicit fire impact on gross primary production in Interior Alaska using satellite images coupled with eddy covarianceRemote Sensing of Environment135, 178-188, doi:10.1016/j.rse.2013.04.003.


Welp, L.R., X. Lee, T.J. Griffis, X. Wen, W. Xiao, S. Li, X. Sun, Z. Hu, M. Val Martin, and J. Huang, (2012) A meta-analysis of water vapor deuterium-excess in the midlatitude atmospheric surface layer, Global Biogeochemical Cycles, 26, GB3021, 10.1029/2011GB004246.


Welp, L.R., R.F. Keeling, H.A.J. Meijer, A.F. Bollenbacher, S.C. Piper, K. Yoshimura, R.J. Francey, C.E. Allison, and M. Wahlen, (2011) Interannual variability in the oxygen isotopes of atmospheric CO2 driven by El NiñoNature477(7366), 579-582.


Yi, C. et al. including L.R. Welp, (2010) Climate control of terrestrial carbon exchange across biomes and continentsEnvironmental Research Letters5, 034007, doi:10.1088/1748-9326/5/3/034007.

Xiao, W., X. Lee, T. Griffis, K. Kim, L. Welp, and Q. Yu, (2010) Comparing observed and modeled oxygen isotopic fluxes of CO2 and H2O over a soybean canopyJournal of Geophysical Research115, G01004, doi:10.1029/2009JG001163.


Lee, X., T.J. Griffis, J.M. Baker, K.A. Billmark, K. Kim, and L.R. Welp, (2009) Canopy-scale kinetic fractionation of atmospheric carbon dioxide and water vapor isotopesGlobal Biogeochemical Cycles23, GB1002, doi:10.1029/2008GB003331.


Welp, L. R., X. Lee, K. Kim, T. Griffis, K. Bilmark, and J. Baker, (2008) d18O of water vapor, evapotranspiration and the sites of leaf water evaporation in a soybean canopyPlant, Cell and Environment, 31, 1214-1228, doi:10.1111/j.1365-3040.2008.01826.x.  (Selected for cover image.)


Welp, L. R.,  J. T. Randerson, and H. Liu, (2007) The sensitivity of carbon fluxes to spring warming and summer drought depends on plant functional type in boreal forest ecosystemsAgricultural and Forest Meteorology147, 172-185, doi:10.1016/j.agrformet.2007.07.010.  (Second most downloaded article, October – December 2007)


Randerson, J.T., H. Liu, M.G. Flanner, S.D. Chambers, Y. Jin, P.G. Hess, G. Pfister, M.C. Mack, K.K. Treseder, L.R. Welp, F.S. Chapin, J.W. Harden, M.L. Goulden, E. Lyons, J.C. Neff, E.A.G. Schuur, and C.S. Zender, (2006) The impact of boreal forest fire on climate warmingScience314, 1130-1132.

Welp, L.R., J.T. Randerson, and H. Liu, (2006) Seasonal exchange of CO2 and d18O-CO2 varies with postfire succession in boreal forest ecosystemsJournal of Geophysical Research – Biogeosciences, 111, G03007, doi:10.1029/2005JG000126.


Welp, L.R., J.T. Randerson, J.C. Finlay, S.P. Davydov, G.M. Zimova, A.I. Davydova, and S.A. Zimov, (2005) A high-resolution time series of oxygen isotopes from the Kolyma River: Implications for the seasonal dynamics of discharge and basin-scale water useGeophysical. Research Letters32, L14401, doi:10.1029/2005GL022857.