Modeling the effects of direct sowing with a mulch of residues on soil water management

Findeling Antoine, Marlet Serge, Maraux Florent, Lafolie François, Chanzy André, Ruy Stéphane, Bruckler Laurent, Haverkamp Randel, Scopel Eric, Arreola-Tostado J. Manuel. 2002. Modeling the effects of direct sowing with a mulch of residues on soil water management. In : World congress of soil science. Thailande-Ministry of Agriculture and Cooperatives-LDD, SFST, IUSS, FFTC, WASWC. Bangkok : WCSS, 1 Cd-Rom World Congress of Soil Science. 17, Bangkok, Thaïlande, 14 August 2002/20 August 2002.

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Autre titre : Modélisation des effets du semis direct avec mulch de résidus sur la gestion de l'eau du sol

Additional Information : Symposium n° 38 ; Paper n° 1305 ; Presentation : poster

Abstract : In places where water resource happens to be scarce, direct sowing in a mulch of residues appears to be a promising technique, that can improve significantly soil water management. This work aims at quantifying in detail and modeling the effects of direct sowing with a mulch of residues on soil water management. It was carried out at la Tinaja (Mexico) on corn-cropped plots, under a semi-arid tropical climate. To start with, three specific effects of direct sowing with mulch were studied in detail: i) reduction of evaporation, ii) increase in infiltration rate, and iii) reduction of runoff. Theoretical tools, which are not presented in this paper, were used to address each effect (Findeling, 2001). Then the latter were taken into account in the frame of a global functioning model, which simulates simultaneously all the effects of direct sowing with mulch, and provides a detailed water balance of the soil - mulch - plant continuum. Results showed that the effects on infiltration and consequently on runoff were decisive, whereas those on evaporation were slighter. (Résumé d'auteur)

Mots-clés Agrovoc : Zea mays, Semis direct, Bilan hydrique du sol, Résidu de récolte, Couverture végétale, Modèle de simulation, Évaporation, Infiltration, Ruissellement

Mots-clés géographiques Agrovoc : Mexique

Classification Agris : F07 - Soil cultivation
P33 - Soil chemistry and physics

Auteurs et affiliations

  • Findeling Antoine, CIRAD-AMIS-AGRONOMIE (FRA)
  • Marlet Serge, CIRAD-AMIS-AGRONOMIE (FRA) ORCID: 0000-0001-7477-922X
  • Maraux Florent, CIRAD-AMIS-AGRONOMIE (FRA)
  • Lafolie François, INRA (FRA)
  • Chanzy André, INRA (FRA)
  • Ruy Stéphane, INRA (FRA)
  • Bruckler Laurent, INRA (FRA)
  • Haverkamp Randel, INPG (FRA)
  • Scopel Eric, CIRAD-CA-GEC (BRA) ORCID: 0000-0003-2938-6587
  • Arreola-Tostado J. Manuel, INIFAP (MEX)

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