Use of 137Cs technique for soil erosion study in the agricultural region of Casablanca in Morocco

Nouira, Asmae; Sayouty, E.H.; Benmansour, M.

doi:10.1016/s0265-931x(03)00025-0

Cited by 39 publications

(30 citation statements)

References 13 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The isotopes reach the soil through precipitation and they are then strongly bound to the soil particles where they can only be moved by erosion ( Saç and İçhedef, 2015). The use of radionuclides in determining soil erosion rates, aids in modelling soil redistribution within the catchment or the landscape (Nouira et al, 2003;Porto et al, 2014b). Further, use of the radionuclides provides a fast and robust way of determining spatial soil redistribution .…”

Section: Introductionmentioning

confidence: 99%

A review of radiometric analysis on soil erosion and deposition studies in Africa

et al. 2018

View full text Add to dashboard Cite

Soil erosion is one of the main soil degradation phenomena that threaten sustainable use of soil productivity thus affecting food security. In addition, it leads to reservoir storage capacity loss because of sedimentation. This not only affects water quantity but also water quality. Worldwide, annual loss in reservoir storage capacity due to sedimentation is 0.5 to 1%. Similarly, about 27% of land in Africa is largely degraded by erosion. As a result, there is need to minimize soil erosion and deposition through site specific estimation of soil erosion and deposition rates in the reservoirs. To achieve this, Fallout RadioNuclides (FRNs) are some of the methods in use. The most common radionuclides include; 137 Cs, 210 Pb and 7

show abstract

Section: Introductionmentioning

confidence: 99%

A review of radiometric analysis on soil erosion and deposition studies in Africa

et al. 2018

View full text Add to dashboard Cite

show abstract

“…Due to the fact that the proportional model does not take into account the dilution of 137 Cs concentrations in the plough layer after surface lowering by soil erosion, the results obtained may underestimate the actual rates of soil loss (Nouira et al 2003).…”

Section: Models Used For Erosion Rates From 137 Cs Measurementsmentioning

confidence: 95%

“…According to SMBM, the mean annual soil loss rate (t ha −1 year −1 ), Y is expressed as follows: (Nouira et al 2003).…”

Section: Models Used For Erosion Rates From 137 Cs Measurementsmentioning

confidence: 99%

“…The advantages of using the 137 Cs technique to study soil erosion are that it (a) requires a single sampling trip to the field; (b) provides results quickly; (c) allows retrospective assessment of soil erosion rates (average losses for 35-40 year period thus is less influenced by extreme events); (d) provides estimates of soil erosion rates, deposition rates, and export rates and (e) allows a sampling strategy to provide any spatial resolution required (Nouira et al 2003).…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Estimates of soil erosion using cesium-137 tracer models

Saç

Uğur

Yener

et al. 2007

Environ Monit Assess

View full text Add to dashboard Cite

The soil erosion was studied by 137Cs technique in Yatagan basin in Western Turkey, where there exist intensive agricultural activities. This region is subject to serious soil loss problems and yet there is not any erosion data towards soil management and control guidelines. During the soil survey studies, the soil profiles were examined carefully to select the reference points. The soil samples were collected from the slope facets in three different study areas (Kirtas, Peynirli and Kayisalan Hills). Three different models were applied for erosion rate calculations in undisturbed and cultivated sites. The profile distribution model (PDM) was used for undisturbed soils, while proportional model (PM) and simplified mass balance model (SMBM) were used for cultivated soils. The mean annual erosion rates found using PDM in undisturbed soils were 15 t ha(-1) year(-1) at the Peynirli Hill and 27 t ha(-1) year(-1) at the Kirtas Hill. With the PM and SMBM in cultivated soils at Kayişalan, the mean annual erosion rates were obtained to be 65 and 116 t ha(-1) year(-1), respectively. The results of 137Cs technique were compared with the results of the Universal Soil Loss Equation (USLE).

show abstract

“…Several investigations in different regions of Morocco (Alhoceïma, Rif, Mohammedia, Azrou, Zaër, etc. ), have confirmed the potential of this technique; however the majority has concerned agricultural plots (Benmansour, 2000;Bouhlassa et al, 2000;Nouira et al, 2003Nouira et al, , 2004Nouira et al, , 2008Duchemin et al, 2008). In this work we tried to use the 137 Cs measurements to estimate soil loss in a low density area of cork oak forest in Sehoul.…”

mentioning

confidence: 98%

The efforts for cork oak forest management and their effects on soil conservation

et al. 2010

Self Cite

View full text Add to dashboard Cite

The Shoul oak grove is a forested ecosystem inherited from a Holocene phase of ecological optimum; its evolution, through the double geologic and human temporality, and in relation with several processes of degradation, led to the progressive loss of its environmental equilibrium and further to the reduction of its economic contributions. The fragility of these forests is the consequence of the convergence of two main factors, i) the intrinsic fragility of the forested environment based on an unstable balance between the tree, the leached soils and their moisture content ; ii) the anthropological action on the forest environment and its degradation with the change of its floristic composition.During the colonization the new context was at the origin of the new social and economic relation between the forest and the surrounding populations. The current use of this oak grove is in a classic scheme of the reports society / forest in Morocco. The population is especially of pastoral main activity in the bordering communes.But the oak groves of Mamora-Shoul are integrated into the area of influence of several cities, what exposes the forest to the risks of uncontrolled urbanization. These oak groves are thus in the centre of interest of several stakeholders with opposite behaviour and a new paradigm of relation rural/urban.Through a double approach, environmental and socio-economic, this paper will try to bring elements of answer by analyzing the interactions between a forest which reached an alarming threshold of degradation and a society affected by important changes in its modes of intervention and exploitation.Key words: Morocco, Atlantic Meseta, Shoul plateau, Forest management, water and soil conservation, assisted regeneration of cork oak. ResumenLos esfuerzos para dirección de bosque de alcornoque y sus efectos sobre conservación de suelo, la meseta Shoul, región de Rabat, Marruecos La arboleda de roble Shoul es un ecosistema arbolado heredado de una fase de Holocene de grado óptimo ecológico; su evolución, por la doble temporalidad geológica y humana, y en relación con varios procesos de degradación, conducida a la pérdida progresiva de su equilibrio ambiental y con relación a la reducción de sus contribuciones económicas. La fragilidad de estos bosques es la consecuencia de la convergencia de dos factores principales, i) la fragilidad intrínseca del ambiente arbolado basado en un equilibrio(saldo) inestable entre el árbol, los suelos leached y su contenido de humedad; ii) la acción antropológica sobre el ambiente forestal y su degradación con el cambio de su composición floristic.Durante la colonización el nuevo contexto estaba en el origen de la nueva relación social y económica entre el bosque y las poblaciones circundantes. El empleo corriente de esta arboleda de roble está en un esquema clásico de la sociedad de informes/el bosque en Marruecos. La población es sobre todo de actividad pastoral principal en las comunas de lindar.Pero las arboledas de roble de Mamora-Shoul son integradas en el área...

show abstract

Use of 137Cs technique for soil erosion study in the agricultural region of Casablanca in Morocco

Cited by 39 publications

References 13 publications

A review of radiometric analysis on soil erosion and deposition studies in Africa

A review of radiometric analysis on soil erosion and deposition studies in Africa

Estimates of soil erosion using cesium-137 tracer models

The efforts for cork oak forest management and their effects on soil conservation

Contact Info

Product

Resources

About