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University of Gent (1994)

Effect of ’Margine’ on aggregate stability and erodibility of silt loam soil.

Rachilo, James Richard

Titre : Effect of ’Margine’ on aggregate stability and erodibility of silt loam soil.

Auteur : Rachilo, James Richard

Université de soutenance : University of Gent

Grade : Master of Science (MS) 1994

Résumé
Margine, a waste water product of the olive oil industry has been used in investigating its effectiveness in soil conditioning of a silt loam soil. The investigation was conducted with the express objective of determining the margine effect on aggregate stability and erodibility. Soil samples were collected from a test site on a [arm in Nukerke (40 km south of Ghent, Belgium), prepared and treated with margine (1.5 and 3 % dry matter margine) for the study. A dry and wet sieving method was applied for aggregate stability determination while a rainfall simulator was used for erodibility studies. The application of margine resulted in increased aggregate stability, particularly at higher level of application (3.0% dry matter margine). However, it decreased the water retention capacity of the soil. There were relatively higher soil losses (from splash) with higher levels of margine treatment. This could be attributed to hydrophobic nature of the organic matter in margine. Soil losses from runoff were generally low. Water percolation was high with the treated soil due to better aggregation. Runoff and splash (soil losses) ; and percolation were affected significantly due to margine application, while runoff (volume of water) was not significantly affected.

Sujets : Soil conservation/Soil erosion/ ;

Présentation

Page publiée le 16 janvier 2017, mise à jour le 26 décembre 2019