Parcourir Unidades de Investigación de la Facultad de Ciencias par auteur "Pansu, Marc"
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Factors controlling decomposition of soil organic matter in fallow systems of the high tropical Andes: A field simulation approach using 14C- and 15N- labelled plant material
Bottner, Pierre; Pansu, Marc; Sarmiento, Lina; Hervé, Dominique; Callisaya Bautista, Ruben; Metselaar, Klaas (2006)N-rich (C:N ¼ 27) and N-poor (C:N ¼ 130) wheat straw, labelled with 14C and 15N, was incubated for 2 yr in two major ecosystems of the upper elevation belt of cultivation in the high Andes: the moist Paramo (precipitation ... -
Micro-organismes et matiere organique du sol (modele MOMOS): bilan de 20 ans de modelisation basée sur le tracage isotopique in situ
Pansu, Marc; Sarmiento, Lina; Bottner, P. (Etude et Gestion des Sols 16(2): 113-132, Francia, 2009)Outils prévisionnels de la durabilité des écosystèmes et du changement global, les modèles à compartiments permettent de prédire les flux échangés entre matières organiques d’origine végétale ou microbienne du sol ainsi ... -
Modeling microbial exchanges between forms of soil nitrogen in contrasting ecosystems
Pansu, Marc; Machado Díaz, Daniel; Bottner, Pierre; Sarmiento, Lina (Biogeosciences Discussions, 10(3): 5749-5780, Unión Europea, 2013-03-25)Although nitrogen (N) is often linked to carbon (C) in organic molecules, C is carried from the tmosphere to the soil through plants while N is carried from the soil to plants by microbial transformations. Many schemes ... -
Modeling organic transformations by microorganisms of soils in six contrasting ecosystems: Validation of the MOMOS model
Pansu, Marc; Sarmiento, Lina; Rujano, MA.; Ablan Bortone, Magdiel; Acevedo N., Dimas R.; Bottner, Pierre (Global Biogeochemical Cycles 24, GB1008,doi:10.1029/2009GB003527, Venezuela, 2010-02-26)The Modeling Organic Transformations by Microorganisms of Soils (MOMOS) model simulates the growth, respiration, and mortality of soil microorganisms as main drivers of the mineralization and humification processes of ... -
Modelling the transformations and sequestration of soil organic matter in two contrasting ecosystems of the Andes
Pansu, Marc; Sarmiento, Lina; Hervé, Dominique; Metselaar, Klaas; Bottner, Pierre (European Journal of Soil Science 58(3): 775-785, Europa, 2007-06)The mechanisms linking soil respiration to climate and soil physical properties are important for modelling transformation and sequestration of C and N in the soil. We investigated them by incubating 14C and 15N labelled ...