Indicateurs des risques de ruissellement et d′érosion en vue d′une gestion durable des eaux et sols

Bensalah, N.; Sabir, Mohamed; Roose, Éric; Laouina, Abdellah

doi:10.4000/books.septentrion.9220

Cited by 4 publications

(5 citation statements)

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“…Sand particles have larger sizes, so they are resistant to movement (Kavian et al, 2014). These results are similar to those found by several authors, among others Bensalah et al (2012); Moussadek et al (2011), who showed that the erosion of Moroccan soils is strongly related to soil texture.…”

Section: Correlation Between Physical-chemical Properties Runoff and ...supporting

confidence: 89%

“…Several studies have found similar results. Indeed, (Bensalah et al, 2012) showed that cultivated soils in the Bouregrag watershed (Morocco) show very different hydrological behaviours compared to natural forest soil depending on their textural nature and changes in their surface states. Martinez-Mena et al (2008) found that conversion of forest to agricultural land in a semi-arid area of southeastern Spain increased the average sediment concentration seven times more than forest.…”

Section: Runoff and Soil Erosionmentioning

confidence: 99%

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Deforestation effects on soil properties and erosion: a case study in the central Rif, Morocco

MAZİ

HMAMOUCHİ

Saber

et al. 2022

EJSS

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In the Central Rif in the north of Morocco, forest ecosystems have suffered a very sharp decline in favor of crops. Deforestation followed by cultivation illustrates the important environmental, economic and social roles of forests. The objective of this work is to assess the impact of deforestation on soil properties and erosion in the southern Central Rif. The loss of fertility of cleared soils was assessed using physico-chemical analyses after 2, 8 and 20 years of cultivation. A manual rainfall simulation was used to assess the impact of cultivation on the hydrodynamic behavior of the soil. The results show that the conversion of forests into agricultural areas has multiple consequences on the natural system. The general trend of soil texture elements after cultivation shows a significant increase in sand content, and a decrease in clay and silt content. Soil erodibility measured by USLE-K factor increased 3.5 times in the cultivated soil for 20 yrs. compared to the forest soil. Subsequent tillage of cultivated land increases bulk density and fragments large aggregates into smaller ones. Cultivation for 8 and 20 yr decreased SOM by 41 and 82% respectively. Total Nitrogen decreased by 45%, acidity increased by 0.8 unit after 20 years of cultivation. Conversion of natural forest to agricultural land significantly increases soil erosion. The erosion rate becomes higher in the cultivated the 8 and 20 yr cultivation, with an average of 219.60 ± 19.3 and 989.17 ± 68.4 g m-2 h-1 respectively. This degradation hinders agricultural productivity, leading farmers to abandon the land and seek new plots at the expense of forests to meet their agricultural land needs.

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Section: Correlation Between Physical-chemical Properties Runoff and ...supporting

confidence: 89%

Section: Runoff and Soil Erosionmentioning

confidence: 99%

Deforestation effects on soil properties and erosion: a case study in the central Rif, Morocco

MAZİ

HMAMOUCHİ

Saber

et al. 2022

EJSS

View full text Add to dashboard Cite

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“…According to (Bensalah 2008), the climate in the catchment area is influenced both by the altitude, especially in the north where it can reach 1,630 m, and by the opening to the Atlantic Ocean, which provides humidification and temperature moderation. We collect data on some climatic parameters of the SMBA catchment.…”

Section: Climate In the Smba Watershedmentioning

confidence: 99%

Coupling of Space Remote Sensing and GIS for Detection of Areas at Risk of Degradation (Sidi Mohammed Ben Abdellah Dam Case (Morocco))

Ouakil¹,

Badr²,

Kaoutar³

et al. 2022

Ecol. Eng. Environ. Technol.

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Sidi Mohamed Ben Abdellah dam watershed is one of the most vulnerable areas of the risk of soil degradation due to its wide exposure, lithological heterogeneity and varying climatic factors. In this sense, the qualitative study of the spatial-temporal evaluation of ground-level occupancy from satellite visualisation data (acquired by the Landsat TM 5 and Landsat TM 8) device derives a land-use map that shows the areas at risk of degradation after the integration of a combination of multiple factors into a GIS geographic information system (climate, terrain, pedology, vegetation cover and human intervention (anti-erosive practice); The results require adaptive vision to better control the phenomenon, to reduce its severity in areas at high risk of soil degradation.

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“…The plan's conclusions concern the classification of watersheds according to the severity of erosion and the approach to watershed management. They also take into account the financial consequences of the extremely costly inaction, particularly at the agricultural level, in terms of the lifespan of the dams and more generally on the economic and social development of the country (Bensaleh et al, 2012).…”

Section: The National Watershed Management Planmentioning

confidence: 99%

Sixty years of the development projects and combating the environment and natural resources degradation in arid and semi-arid areas in Rif mountains in Morocco

Motaki¹,

El-Fengour²,

Bouzidi³

2021

Geografia, Riscos E Proteção Civil. Homenagem Ao Professor Doutor Luciano Lourenço. Volume 2

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The development programs have been carried out to deal with the degradation phenomena since 1960 in Rif Mountains in northern Morocco. These conservation and preservation projects of natural resources implemented using either mechanical or biological techniques. The objective of this text is to evaluate the strategy undertaken for water and soil conservation to curb poor land-use practices and to assess the investment in water and soil conservation actions adopted the administrative approach that does not involve the locals by encouraging their effective participation in the identification, formulation, programming, execution, and monitoring of the actions to be carried out.

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Indicateurs des risques de ruissellement et d′érosion en vue d′une gestion durable des eaux et sols

Cited by 4 publications

References 0 publications

Deforestation effects on soil properties and erosion: a case study in the central Rif, Morocco

Deforestation effects on soil properties and erosion: a case study in the central Rif, Morocco

Coupling of Space Remote Sensing and GIS for Detection of Areas at Risk of Degradation (Sidi Mohammed Ben Abdellah Dam Case (Morocco))

Sixty years of the development projects and combating the environment and natural resources degradation in arid and semi-arid areas in Rif mountains in Morocco

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