Articles | Volume 14, issue 8
Biogeosciences, 14, 2199–2224, 2017
https://doi.org/10.5194/bg-14-2199-2017
Biogeosciences, 14, 2199–2224, 2017
https://doi.org/10.5194/bg-14-2199-2017

Reviews and syntheses 02 May 2017

Reviews and syntheses | 02 May 2017

Reviews and syntheses: Isotopic approaches to quantify root water uptake: a review and comparison of methods

Youri Rothfuss and Mathieu Javaux

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Cited articles

Andrade, J. L., Meinzer, F. C., Goldstein, G., and Schnitzer, S. A.: Water uptake and transport in lianas and co-occurring trees of a seasonally dry tropical forest, Trees-Struct. Funct., 19, 282–289, https://doi.org/10.1007/s00468-004-0388-x, 2005.
Araguás-Araguás, L., Rozanski, K., Gonfiantini, R., and Louvat, D.: Isotope effects accompanying vacuum extraction of soil-water for stable-isotope analyses, J. Hydrol., 168, 159–171, https://doi.org/10.1016/0022-1694(94)02636-P, 1995.
Araki, H. and Iijima, M.: Stable isotope analysis of water extraction from subsoil in upland rice (Oryza sativa L.) as affected by drought and soil compaction, Plant Soil, 270, 147–157, https://doi.org/10.1007/s11104-004-1304-2, 2005.
Armas, C., Kim, J. H., Bleby, T. M., and Jackson, R. B.: The effect of hydraulic lift on organic matter decomposition, soil nitrogen cycling, and nitrogen acquisition by a grass species, Oecologia, 168, 11–22, https://doi.org/10.1007/s00442-011-2065-2, 2012.
Asbjornsen, H., Mora, G., and Helmers, M. J.: Variation in water uptake dynamics among contrasting agricultural and native plant communities in the Midwestern US, Agr. Ecosyst. Environ., 121, 343–356, https://doi.org/10.1016/j.agee.2006.11.009, 2007.
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Plant root water uptake (RWU) has been documented for the past 5 decades from water stable isotopic analysis. In this paper, we review the different methods for reconstructing RWU profiles on the basis of isotopic information and confront them with each other during a series of virtual experiments. Finally, we call for a development of approaches coupling physically based RWU models with controlled condition experimental setups.
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