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Article Dans Une Revue Environmental Modelling and Software Année : 2017

NutsFor a process-oriented model to simulate nutrient and isotope tracer cycling in forest ecosystems

Résumé

We developed a process-oriented model called NutsFor that simulates nutrient cycling of major cations (Ca, Mg, K, Al, NH4, Na) and anions (NO3, SO4, Cl) and the stable isotope tracers for each of the respective elements at the scale of an ecosystem (isotopic fractionation are not simulated). We tested the ability of NutsFor to reproduce major element and stable isotope tracer (Mg-26 and Ca-44) cycling with the data from 35-yr old beech stand in France. NutsFor correctly reproduced the measured trends in soil solution chemistry for most major elements. The high similarity between modeled and measured distribution of Mg-26 and Ca-44 tracers in the ecosystem provided a unique and robust way to evaluate the hypotheses grounding the model and study the efficiency of Mg and Ca cycling at this very nutrient-poor site.
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Dates et versions

hal-01581637 , version 1 (04-09-2017)

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Gregory van Der Heijden, S. Belyazid, Etienne E. Dambrine, Jacques Ranger, Arnaud Legout. NutsFor a process-oriented model to simulate nutrient and isotope tracer cycling in forest ecosystems. Environmental Modelling and Software, 2017, 95, pp.365-380. ⟨10.1016/j.envsoft.2017.06.003⟩. ⟨hal-01581637⟩
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