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Original Articles

Détermination des variations de la capacité d'absorption d'un sol en place sous averses simulées / Obtaining variations of field infiltration capacity from simulated rainstorm experiments

Pages 355-372 | Received 14 Apr 1978, Published online: 25 Dec 2009
 

Abstract

By sprinkling an experimental plot with different intensities of simulated rainfall starting with different initial conditions of soil moisture, the variations of infiltration capacity and consequently the response of the soil surface to runoff are evaluated. The following values are successively determined from experimental data: the mean depth of surface storage; the mean depth of detention and the parameters of a chosen infiltration formula.

Résumé

En soumettant une parcelle expérimentale á des arrosages d'intensités différentes, dans des conditions d'état d'humectation initiale variées, il est possible en pratique d'évaluer la capacité d'absorption du sol et, par suite, de caractériser son aptitude au ruissellement. Pour cela on extrait successivement des données expérimentales: la hauteur moyenne de la lame d'eau immobilisée par flaques; la hauteur moyenne de la détention superficielle mobilisable pour le ruissellement et les paramèGtres de la loi retenue pour modéliser l'infiltration.

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