Assessing soil erosion and control factors by the radiometric technique in the Boussouab catchment, Eastern Rif, Morocco

Sadiki, Abdelhamid; Faleh, Ali; Izquierdo, Ana Navas; Bouhlassa, S.

doi:10.1016/j.catena.2006.10.003

Cited by 53 publications

(43 citation statements)

References 11 publications

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“…The 137 Cs was used by Sadiki et al (2007) to quantify erosion rates and identify main factors involved in erosion process in Boussouab catchment, Eastern Rif Morocco. It was found out that at the sampling sites, the 137 Cs activity ranged between 245 and 3670 Bq/m 2 .…”

Section: Northern Africamentioning

confidence: 99%

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

et al. 2018

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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

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Section: Northern Africamentioning

confidence: 99%

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

et al. 2018

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“…Sáez et al, 2011;Vericat et al, 2014), radioisotopic measurements (e.g. Sadiki et al, 2007) and bathymetric surveys (e.g. Grauso et al, 2008) have been sporadically applied in badland studies (Fig.…”

Section: Review: Methodologies For Analysing Geomorphological Processmentioning

confidence: 99%

The application of terrestrial laser scanner and SfM photogrammetry in measuring erosion and deposition processes in two opposite slopes in a humid badlands area (central Spanish Pyrenees)

Nadal‐Romero

Revuelto

Errea

et al. 2015

SOIL

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Abstract. Erosion and deposition processes in badland areas are usually estimated using traditional observations of topographic changes, measured by erosion pins or profile metres (invasive techniques). In recent times, remote-sensing techniques (non-invasive) have been routinely applied in geomorphology studies, especially in erosion studies. These techniques provide the opportunity to build high-resolution topographic models at centimetre accuracy. By comparing different 3-D point clouds of the same area, obtained at different time intervals, the variations in the terrain and temporal dynamics can be analysed. The aim of this study is to assess and compare the functioning of terrestrial laser scanner (TLS, RIEGL LPM-321) and structure-from-motion photogrammetry (SfM) techniques (Camera FUJIFILM, Finepix x100 and software PhotoScan by AgiSoft) to evaluate erosion and deposition processes in two opposite slopes in a humid badlands area in the central Spanish Pyrenees. Results showed that TLS data sets and SfM photogrammetry techniques provide new opportunities in geomorphological erosion studies. The data we recorded over 1 year demonstrated that north-facing slopes experienced more intense and faster changing geomorphological dynamics than south-facing slopes as well as the highest erosion rates. Different seasonal processes were observed, with the highest topographic differences observed during winter periods and the high-intensity rainfalls in summer. While TLS provided the highest accuracy models, SfM photogrammetry was still a faster methodology in the field and precise at short distances. Both techniques present advantages and disadvantages, and do not require direct contact with the soil and thus prevent the usual surface disturbance of traditional and invasive methods.

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“…Direct measurements typically involve monitoring of water flows, sediment concentrations, and turbidity to create rating curves of sediment load and water flows (Cochrane et al 2004) or by tracing radioactive isotopes observed in the eroded soils and reservoir sediments (Lu & Higgitt 2001;Nagle 2002;Sadiki et al 2007;Zheng et al 2007). Numerical models that predict or estimate soil erosion, such as the universal soil loss equation (USLE) and its revised version (RUSLE) are widely used when data from direct measurements are lacking, or to estimate the potential for soil erosion to produce sediments in a given watershed (Renard et al 1994).…”

Section: Introductionmentioning

confidence: 99%

Paying the forest for electricity: a modelling framework to market forest conservation as payment for ecosystem services benefiting hydropower generation

et al. 2011

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SUMMARYThe operation and longevity of hydropower dams are often negatively impacted by sedimentation. Forest conservation can reduce soil erosion, and therefore efforts to maintain upstream forest cover within a watershed contribute to the economic life span of a hydropower facility. The cost of forest conservation can be viewed as an investment in hydropower and be financed via a payment for ecosystem services (PES) scheme. A novel modelling framework is used to estimate payments for forest conservation consisting of: (1) land-use change projection; (2) watershed erosion modelling; (3) reservoir sedimentation estimation; (4) power generation loss calculation; and (5) PES scheme design. The framework was applied to a proposed dam in Cambodia (Pursat 1). The estimated net present value of forest conservation was US$ 4.7 million when using average annual climate values over 100 years, or US$ 6.4 million when considering droughts every eight years. This can be remunerated with annual payments of US$ 4.26 ha −1 or US$ 5.78 ha −1 , respectively, covering forest protection costs estimated at US$ 0.9 ha −1 yr −1 . The application of this type of PES represents a rational option that allows for conservation and development of hydropower watersheds susceptible to erosion and sedimentation.

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Assessing soil erosion and control factors by the radiometric technique in the Boussouab catchment, Eastern Rif, Morocco

Cited by 53 publications

References 11 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

The application of terrestrial laser scanner and SfM photogrammetry in measuring erosion and deposition processes in two opposite slopes in a humid badlands area (central Spanish Pyrenees)

Paying the forest for electricity: a modelling framework to market forest conservation as payment for ecosystem services benefiting hydropower generation

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