Usefulness of TAO model to predict and manage the transformation in soil of carbon and nitrogen forms from West-Africa urban solid wastes Kabore W. T. auteur aut IRD Pansu Marc auteur aut IRD Hien E. auteur aut IRD Houot S. auteur aut IRD Zombré N. P. auteur aut IRD Masse Dominique auteur aut IRD text journalArticle eng text/pdf born digital access The TAO model of Transformation of Added Organic materials (AOM) calibrated on AOMs and substrates of temperate areas was used to assess the transformations in soil of carbon and nitrogen forms of AOMs: raw materials, selected mixtures and composts from Ouagadougou urban wastes. AOMs were studied in terms of chemical and biochemical contents and for their C and N mineralization during incubations in a typical Ferric Lixisol of the sub-urban agriculture of Ouagadougou. The TAO model was used to predict the transformations of C (very labile, resistant and stable organic C) and N (very labile, resistant and stable organic N, produced and immobilized inorganic N) forms driven by AOM biochemical data. Without any change in calibration formulae, TAO predicted accurately the C transformations and inorganic N production of most of the tested AOMs, with a tendency to slightly overestimate C mineralization of previously well-composted materials and re-mineralization of immobilized N. Complementary adjustments using more complete data from laboratory experiments are suggested, but the model agrees with other data collected in the field and appears as a promising tool to optimise the management of urban wastes in the tropical area as well as for agro industrial organic fertilizers of the temperate zone. This application suggests ways to improve the management of urban wastes aiming to optimize agricultural yields, system sustainability and C sequestration in soil. specialized 068 020 Waste Management 31 1 154-167 2011 0956-053X https://www.documentation.ird.fr/hor/fdi:010053344 10.1016/j.wasman.2010.06.010 0956-053X [F B010053344] https://www.documentation.ird.fr/hor/fdi:010053344 https://www.documentation.ird.fr/intranet/publi/2011/03/010053344.pdf Accès réservé (Intranet de l'IRD) IRD - Base Horizon / Pleins textes 2011-04-07 2017-08-23 fdi:010053344 fre