Impacts of wastewater irrigation in arid and semi arid regions: case of Sidi Abid region, Tunisia

Bouri, Salem; Abida, Habib; Khanfir, Hafedh

doi:10.1007/s00254-007-0751-5

Cited by 27 publications

(10 citation statements)

References 14 publications

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“…This study focuses on the impact of TWE irrigation on soil salinity and sodicity on a calcisol and a fluvisol which have been irrigated for 15 and 4 years respectively in the irrigated area of the arid region of Sfax (Tunisia). At Sfax (second largest city in Tunisia), signs of extremely low groundwater levels have been recorded over the last three decades due to the increasing number of wells used for crop irrigation (BOURI et al, 2008). The Sfax treated wastewater has been reused for irrigation since 1989.…”

Section: Introductionmentioning

confidence: 99%

Effects of treated wastewater irrigation on soil salinity and sodicity in Sfax (Tunisia): A case study

Belaid

Néel

Kallel

et al. 2010

rseau

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In arid regions such as near Sfax (Tunisia), treated wastewater effluents (TWE) are often applied as agricultural irrigation. Irrigation TWE usually contain large amounts of carbon, nitrogen and sodium. The objective of this study was to evaluate the impact of TWE irrigation on soil salinity and sodicity. In the city of Sfax, two sites were selected with two soil types (fluvisol and calcisol) having been irrigated for 4 and 15 years respectively. Soils were sampled at three different depths (0-30, 30-60 and 60-90 cm) in the TWE irrigated area and in a non-irrigated control area. Irrigated and non-irrigated study soils were analyzed for pH, nitrate and ammonia, electrical conductivity (ECs), exchangeable sodium percentage (ESP), sodium absorption ratio (SAR) and soil organic matter.The fluvisol, irrigated for only four years, is more affected by salinity than the calcisol irrigated for 15 years. In the upper fluvisol layer irrigated by the treated wastewater, ECs reach 8 mS•cm-1 and ESP a value of 15% while in all layers of the calcisol, ECs and ESP are lower and rarely exceed 4 mS•cm-1 and 6% respectively. This result is due to a combination of factors in the fluvisol treatment area including texture, cation exchange capacity, irrigation procedure and crop management.Dans les régions arides telles que le cas de Sfax (Tunisie), les eaux usées traitées (EUT) sont souvent utilisées en irrigation agricole. Généralement, les EUT sont riches en composés organiques, en azote et en sodium. L’objectif de cette étude est d’évaluer l’impact de l’irrigation par les EUT sur la salinité et la sodicité des sols. Dans la région de Sfax, deux sites ont été sélectionnés, représentant deux types de sols différents (fluvisol et calcisol) irrigués par les EUT, respectivement depuis 4 et 15 ans. Des échantillons des sols ont été prélevés systématiquement à trois profondeurs différentes (0-30, 30-60 et 60-90 cm) au niveau des parcelles irriguées et sur des placettes contrôle non irriguées (témoin). Sur chaque échantillon composite de sol, les pH (eau, KCl), teneurs en nitrate et ammonium, capacité d’échange cationique (CEC), conductivités électriques (CEs), taux de sodium échangeable (ESP), ratios d’absorption de sodium et teneurs en matières organiques ont été mesurés.Le fluvisol, irrigué depuis seulement quatre ans, est plus affecté par la salinité que le calcisol, irrigué depuis 15 ans. Dans les niveaux de surface du fluvisol, la CEs et l’ESP ont atteint les seuils critiques de 8 mS•cm-1 et 15 % respectivement, alors qu’au niveau du calcisol, la CEs et l’ESP sont plus faibles et dépassent rarement 4 mS•cm-1 et 5 % respectivement. Pour le fluvisol, ce résultat est dû à la combinaison de plusieurs facteurs impliquant la texture, la capacité d’échange cationique, la procédure d’irrigation et la rotation des cultures

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Section: Introductionmentioning

confidence: 99%

Effects of treated wastewater irrigation on soil salinity and sodicity in Sfax (Tunisia): A case study

Belaid

Néel

Kallel

et al. 2010

rseau

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“…Thus reclaimed wastewater has become a valuable resource for irrigation of crops in China. However, application of wastewater in agriculture may pose potential risks to the environment and public health because they contain toxic inorganic and organic chemicals and pathogens (Asano and Cotruvo, 2004;Bouri et al, 2008;Chen et al, 2005;Papadopoulos et al, 2009;Ternes, 1998).…”

Section: Introductionmentioning

confidence: 99%

Distribution and accumulation of endocrine-disrupting chemicals and pharmaceuticals in wastewater irrigated soils in Hebei, China

Chen

Ying

Kong

et al. 2011

Environmental Pollution

225

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“…More than 57 percent of sewage after purification has been used in agriculture, garden and lawn irrigation, which accounts for about 20 percent of the total irrigation water, becoming a paragons of water resources efficient utilization countries (Chen and Zhou, 2001). Other countries, such as Tunisia, India, Jordan and Mexico, have also carried out relevant researches on wastewater irrigation and already accumulated a wealth of experience (Abu-Sharar et al, 2010;Bouri et al, 2008;Siebe and Fischer, 1996;Singh et al, 2012).…”

Section: History Of Sewage Irrigationmentioning

confidence: 99%

Impacts of sewage irrigation on soil properties of farmland in China: A review

Tang

Wang

et al. 2017

Preprint

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Impacts of wastewater irrigation in arid and semi arid regions: case of Sidi Abid region, Tunisia

Cited by 27 publications

References 14 publications

Effects of treated wastewater irrigation on soil salinity and sodicity in Sfax (Tunisia): A case study

Effects of treated wastewater irrigation on soil salinity and sodicity in Sfax (Tunisia): A case study

Distribution and accumulation of endocrine-disrupting chemicals and pharmaceuticals in wastewater irrigated soils in Hebei, China

Impacts of sewage irrigation on soil properties of farmland in China: A review

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