文章基本信息

标题：EFFECTS OF OLIVE MILL WASTEWATER SPREADING ON THE PHYSICAL CHARACTERISTICS OF SOIL
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作者：Hamdi Sahraoui ; Hafedh Jamil Mellouli
期刊名称：EQA - International Journal of Environmental Quality
印刷版ISSN：2281-4485
出版年度：2010
卷号：5
期号：5
页码：1-6
DOI：10.6092/issn.2281-4485/3805
语种：English
出版社：Alma Mater Studiorum - University of Bologna
摘要：The use of olive mill wastewater (OMW) by agricultural spreading constitutes an alternative among the solutions proposed. The experiment was carried out in Sidi Bou Ali (Tunisia), with three treatments, T 0 , T 1 (25 m 3 /ha) and T 2 (50 m 3 /ha) during four months. By means the physical capillary model for porous media, pF curves were established and the effects of OMW on the soil physical characteristics were studied. It was concluded that the OMW, for the two applied doses, induced a decrease in water retention for all tensions. An increase in saturated state hydraulic conductivity was obtained in a more pronounced manner in the case of topsoil for all dates. These results confirm the migration process of OMW from the topsoil to the underlying horizon. Such soil modifications are already required in order to establish a mulch on the soil surface so as to reduce the evaporation water losses.
其他摘要：The use of olive mill wastewater (OMW) by agricultural spreading constitutes an alternative among the solutions proposed. The experiment was carried out in Sidi Bou Ali (Tunisia), with three treatments, T0, T1 (25 m3/ha) and T2 (50 m3/ha) during four months. By means the physical capillary model for porous media, pF curves were established and the effects of OMW on the soil physical characteristics were studied. It was concluded that the OMW, for the two applied doses, induced a decrease in water retention for all tensions. An increase in saturated state hydraulic conductivity was obtained in a more pronounced manner in the case of topsoil for all dates. These results confirm the migration process of OMW from the topsoil to the underlying horizon. Such soil modifications are already required in order to establish a mulch on the soil surface so as to reduce the evaporation water losses.
关键词：olive mill wastewater (OMW);spreading;physical impacts;water retention;margines;épandage;impacts physiques;rétention d'eau;acque reflue dei frantoi oleari;la diffusione;l'impatto fisico;la ritenzione idrica
其他关键词：olive mill wastewater (OMW); spreading; physical impacts; water retention