Spatial variability and risk assessment of groundwater pollution in El-Outaya region, Algeria

Boudibi, Samir; Sakaa, Bachir; Benguega, Zineeddine

doi:10.1016/j.jafrearsci.2021.104135

Cited by 16 publications

(6 citation statements)

References 32 publications

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“…However, the small size of some farms is the result of the high cost of production factors (i.e., water and land), which has forced owners of large areas to invest in renting out their land. This has led to the emergence of a new form of farmland management, the indirect tenancy system [10,20,49]. The landowner generally has an interest in giving the worker a share of the production, according to a formula that varies from 1/3 to 1/4 of the profit made, which makes him a partner whose essential role is to do the cultivation work, while all the expenses belong to the landowners, and the working relationship is materialized between the landowner and the tenant by a contract.…”

Section: Discussionmentioning

confidence: 99%

“…The landowner generally has an interest in giving the worker a share of the production, according to a formula that varies from 1/3 to 1/4 of the profit made, which makes him a partner whose essential role is to do the cultivation work, while all the expenses belong to the landowners, and the working relationship is materialized between the landowner and the tenant by a contract. Recent works on agrarian contracts in Algeria [13,15,[19][20][21][49][50][51][52] show that they have played a role in alleviating the difficulties of accessing land ownership (e.g., high purchase price, undivided status, etc.) and have played a significant role in agricultural and land dynamics.…”

Section: Discussionmentioning

confidence: 99%

“…Biskra region is located in the northeast of the Algerian Sahara, covering an area of 3 thousand square kilometers. The study area is characterized by a hot desert climate according to Koppen's classification; the mean annual rainfall rarely exceeds 150 mm, the mean annual evaporation is 2.5 thousand mm, and the mean temperature ranges from 11 • C (coldest month: January) to 35 • C (hottest month: July) [20]. The study area is generally flat, with undulating ridges and mountain ranges (the lowest altitude in the Oumache area is 43 m, and the highest altitude in the western part of the area is 283 m).…”

Section: Study Areamentioning

confidence: 99%

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Impact of Agricultural Policies on the Sustainable Greenhouse Development in Biskra Region (Algeria)

Aidat,

Benziouche,

Cei

et al. 2023

Sustainability

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Since its appearance in Algerian agriculture, the greenhouse production system has turned the agricultural sector upside down, bringing great advantages for production in terms of quality and quantity, creating a very important socio-economic dynamic, especially in the Saharan region. This paper makes a new contribution by providing information on the impact of agricultural policies on greenhouse development in Biskra (southeastern city in Algeria). This study aims to understand the type of farms/farmers most specialized in greenhouses as well as the relationship between the use of these land acquisition and financing policies (PNDA) and their degree of specialization in greenhouses. A field survey was held from February to April 2021 in the M’ziraa region (a municipality of Biskra City), completing 97 questionnaires. Collected data were analysed by Ordinary Least Squares (OLS) regression and Truncated regression. The results show that farmers who used PNDA to acquire the land and for greenhouse investments and those with a lower education level are less likely to specialize in greenhouse production. Similarly, the effect of farm size is negative on the specialization in greenhouse production. Conversely, we found that farmers who do not directly manage the farm and those who have a longer experience with greenhouse production invest a higher share of their land in greenhouses.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Study Areamentioning

confidence: 99%

See 1 more Smart Citation

Impact of Agricultural Policies on the Sustainable Greenhouse Development in Biskra Region (Algeria)

Aidat,

Benziouche,

Cei

et al. 2023

Sustainability

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“…Para proporcionar resultados de interpolación precisos, el ME y el MSE deben estar cerca de cero, mientras que RMSE debe ser lo más pequeño posible y cercano al ASE. Los valores óptimos de ME y RMSE deben estar cerca de 1 (Boudibi et al, 2021;Vessia et al, 2020).…”

Section: Validación Cruzada E Incertidumbre De Las Prediccionesunclassified

Aplicación de métodos geoestadísticos en el modelado espacio-temporal de los niveles de agua subterránea del acuífero Valle de Sébaco, Nicaragua.

Treminio

2022

Rev. Ambientales

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[Introducción]: La información ambiental georreferenciada que provienen de instituciones ambientales constituye información base, para mejorar la gestión ambiental y de sostenibilidad en la región de América Latina y El Caribe. [Objetivo]: Evaluar la evolución espacio-temporal del nivel freático utilizando datos de niveles de agua subterránea medidos en la red de pozos de monitoreo del acuífero Valle de Sébaco. [Metodología]: Se evaluó durante la época seca del 2010 al 2018 (9 años) la fluctuación de los niveles de agua subterránea, a partir de datos de niveles de agua medidos en la red de pozos de monitoreo del acuífero Valle de Sébaco. El enfoque geoestadístico que se empleó en este conjunto de datos, para revelar los modelos predictivos fue el método Kriging Empírico Bayesiano (EBK), dicho método obtuvo una representación espacial de la superficie freática del acuífero y posteriormente fue utilizado para calcular la velocidad y aceleración del nivel freático. [Resultados]: Durante el período analizado los mapas de aceleración del nivel freático mostraron valores medios de -0.52 m/año. Estos valores sugieren que una parte del acuífero está experimentando un descenso en los niveles freáticos que podría verse agravado rápidamente con los fenómenos climáticos y el aumento de la demanda del recurso. [Conclusiones]: El enfoque utilizado para la evaluación cuantitativa de los niveles de agua subterránea es adecuado para países que carecen de base de datos de parámetros hidráulicos específicos de un acuífero.

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“…Water, a vital resource, is constantly threatened by the high concentration of pollutants that are discharged into it, rendering it unusable for humans (Bisimwaa et al 2022). Water pollution is a widespread issue in most agricultural areas worldwide (Boudibi et al 2021). Recently, aquatic ecosystems have been deteriorating due to human actions, primarily industrial and agricultural activities, generating waste that can disrupt the balance of fauna and ora in these aquatic ecosystems (Belahmadi et al 2023).…”

Section: Introductionmentioning

confidence: 99%

Application of mapping and statistical study for the assessment of surface water quality in the Safsaf River (North-Eastern Algeria)

Fadila,

BOUDEFFA

2023

Preprint

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The Skikda region, primarily industrial and agricultural, has experienced significant accelerated industrial and agricultural development over the past decade, resulting in abundant untreated discharges into the physical environment. Our study focused on the physicochemical analysis of the water of the Safsaf River in Skikda. It is based on monitoring three stations during the months of March and August. The aim of this study was to assess the quality of this water and characterize its suitability for agricultural use. To this end, we determined the values of the following physicochemical parameters: Electrical Conductivity (EC), pH, turbidity, total alkalinity (TA), chlorides (Cl-), sodium (Na+), potassium (K+), nitrite (NO2-), ammonium (NH4+), Biological Oxygen Demand (BOD5), and phosphates (PO4-3). The results show that electrical conductivity, sodium, potassium, and chlorides increase downstream of the watershed due to seawater intrusion into the plain. As for the origins of phosphate pollution, whose concentrations have significantly increased along the river, we can explain it by pollution generated by the use of phosphate fertilizers and return irrigation water into surface waters, as well as pollution due to direct input of domestic wastewater.

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Spatial variability and risk assessment of groundwater pollution in El-Outaya region, Algeria

Cited by 16 publications

References 32 publications

Impact of Agricultural Policies on the Sustainable Greenhouse Development in Biskra Region (Algeria)

Impact of Agricultural Policies on the Sustainable Greenhouse Development in Biskra Region (Algeria)

Aplicación de métodos geoestadísticos en el modelado espacio-temporal de los niveles de agua subterránea del acuífero Valle de Sébaco, Nicaragua.

Application of mapping and statistical study for the assessment of surface water quality in the Safsaf River (North-Eastern Algeria)

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