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Which Formalism to Model the pH and Temperature Dependence of the Microbiological Processes in Soils? Emphasis on Nitrification |
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| Authors: | E Le Cadre F Gérard S Génermont T Morvan S Recous |
| Institution: | 1. Grande Paroisse, 12 place de l’Iris, 92062, Paris La Défense, France 6. INRA, UMR 1222, INRA–SUPAGRO Unité Biogéochimie du Sol et de la Rhizosphère, place Viala, 34060, Montpellier, France 2. INRA, UMR 1222, INRA-SUPAGRO Unité Biogéochimie du Sol et de la Rhizosphère, place Viala, 34060, Montpellier, France 3. INRA, UMR 1091, INRA INAPG, Unité Environnement et Grandes Cultures, BP 01, 78850, Thiverval-Grignon, France 4. INRA, UMR 1069, INRA–Agrocampus Rennes Sols, Agronomie, Spatialisation, 65 route de St Brieuc, CS 84215, 35042, Rennes, France 5. INRA, UR 1158, Unité d’Agronomie, rue Fernand Christ, 02007, Laon, France |
| Abstract: | We compared three formalisms derived from (1) medical sciences, (2) environmental, and (3) agronomic models to simulate the effects of pH and temperature on the nitrification rate in arable soils. We evaluated these formalisms by implementing them in a simple growth model by comparing modelled and measured nitrate contents of soil samples with different initial soil pH after incubation at two temperatures. We found that the formalisms derived from medical sciences were more accurate and easily adapted to the data, suggesting that such formalisms may be profitably used in agronomic or environmental models. |
| Keywords: | Microbial growth Model Formalisms Environment Soil |
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