Articles | Volume 24, issue 1
https://doi.org/10.5194/npg-24-77-2017
https://doi.org/10.5194/npg-24-77-2017
Research article
 | 
06 Feb 2017
Research article |  | 06 Feb 2017

Scale and space dependencies of soil nitrogen variability

Ana M. Tarquis, María Teresa Castellanos, Maria Carmen Cartagena, Augusto Arce, Francisco Ribas, María Jesús Cabello, Juan López de Herrera, and Nigel R. A. Bird

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Cited articles

Allen, R. G., Pereira, L. S., Raes, D., and Smith, M.: Crop evapotranspiration. Guidelines for computing crop water requirements. FAO irrigation and drainage paper 56, 3rd Edn., 300 pp., 2002.
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De Bartolo, S., Otten, W., Cheng, Q., and Tarquis, A. M.: Preface “Modeling soil system: complexity under your feet”, Biogeosciences, 8, 3139–3142, https://doi.org/10.5194/bg-8-3139-2011, 2011.
Bird, N., Díaz, M. C., Saa, A., and Tarquis, A. M.: A review of fractal and multifractal analysis of soil pore-scale images, J. Hydrol., 322, 211–219, 2006.
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Short summary
Melon crop got different levels of N that constituted a contribution to the variation of soil N at mainly larger scales. During its development a proportion of the N was taken up, adding a second factor of variability at smaller scales. After the melon harvest, the wheat was sown across the plots and harvested at the end of the season. Wheat was used as a N sink crop and allowed us to evaluate the soil N residual. Multiscale and relative entropy were applied to study N scale dependencies.