Publications des agents du Cirad


Modeling soil-water dynamics for diverse environmental needs

Martin P., Mohtar R.H., Clouvel P., Braudeau E.. 2006. In : A. Voinov ; A.J. Jakeman and A.E. Rizzoli (eds.). Proceedings of the IEMSS. 3rd Biennial meeting of the International Environmental Modelling and Software Society, July 9-13, 2006, Burlington, Etats-Unis. Burlington : Environmental Modelling and Software Society, 6 p.. International Conference IEMSS 2006. 3, 2006-07-09/2006-07-13, Burlington (Etats-Unis).

Accurate representation of the top soil matrix with special attention to the scales present is important to the dynamics of water flow and fate of pollution at field, farm and watershed scales. It is also important from an agronomic stand point since agriculture still constitutes the main source of pollution at a time when many agronomic models still use empirical notions of soil hydraulic properties. The soil dynamics literature describes soil hydraulic properties independently from the soil-water medium hydro-structural dynamics. This leads to an empirical approach to represent and estimate soil hydro-structural properties such as shrinkage, water potential, field capacity, available water, hydraulic conductivity, etc. This study presents a computer model of structured soil-water medium in which the thermodynamic equilibrium is characterized by its internal hydro-structural changes.

Documents associés

Communication de congrès

Agents Cirad, auteurs de cette publication :