A new simple approach to assess sediment yield at a large scale with high landscape diversity: an example of Morocco

Gourfi, Abdelali; Daoudi, Lahcen; Vente, Joris de

doi:10.1016/j.jafrearsci.2020.103871

Cited by 7 publications

(6 citation statements)

References 53 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Meseta domains are formed by a Paleozoic basement of Cambrian to Carboniferous age and consist mainly of sedimentary terrain with intense bimodal volcanic activity in the Visean; it is generally characterized by low to moderate relief, well-developed soils and a semi-arid to mediterranean climate. The domain of Anti-Atlas and Sahara (where is the lowest point of the country, at 55 meters below sea level) which is formed by a Proterozoic basement and characterized by a desert climate (P < 100 mm), a vegetation cover dominated essentially by bare areas and sparse desert steppes, and very poor soils (Gourfi et al, 2020;Verner et al, 2018;Michard et al, 2008). Namely, in a semi-arid environment in northwest Morocco that is affected by the formation of severe gullies, where the effects of extreme rainfall are clearly demonstrated (Shrestha and Jetten, 2018).…”

Section: Study Areamentioning

confidence: 99%

Soil water erosion assessment in Morocco through modeling and fingerprinting applications: A review

Lamane

Moussadek

Baghdad

et al. 2022

Heliyon

View full text Add to dashboard Cite

Section: Study Areamentioning

confidence: 99%

Soil water erosion assessment in Morocco through modeling and fingerprinting applications: A review

Lamane

Moussadek

Baghdad

et al. 2022

Heliyon

View full text Add to dashboard Cite

“…Numerous studies have used the accumulated sediments in reservoirs and lakes to estimate sediment yield (SY), while its comparison with estimated gross soil erosion rates also provides a better understanding of sediment transport and sediment sinks (Grauso et al, 2008;Zhang et al, 2006Zhang et al, , 2009Zhao et al, 2017). Reservoir sedimentation can also be used for calibration and validation of erosion models (de Vente et al, 2008;Gourfi et al, 2020;Kotti et al, 2018;Quiñonero-Rubio et al, 2016;Zhao et al, 2018).…”

Section: Introductionmentioning

confidence: 99%

“…Our current understanding of erosion rates in semi‐arid to arid settings owing to overland flow and gully erosion is still limited, despite significant advances in recent years (Armoza‐Zvuloni et al, 2022; Diani et al, 2023; Mor‐Mussery & Laronne, 2020). One of the main challenges in evaluating erosion rates in these regions is the variability of the landscape and the complexity of the erosion processes (de la Torre‐Robles et al, 2023; García‐Ruiz et al, 2013; Gourfi et al, 2020). In arid and semi‐arid areas, rainfall is often infrequent and intense, leading to flash floods that can cause rapid erosion and transport of sediment (Farhan & Ayed, 2017).…”

Section: Introductionmentioning

confidence: 99%

Clay minerals in soils and sediment as tracers of provenance: The case study of the N'fis watershed, Morocco

Gourfi,

Daoudi,

Daoud

et al. 2023

Soil Use and Management

Self Cite

View full text Add to dashboard Cite

Reservoir siltation remains a complex and challenging problem worldwide. Understanding the sources of sedimentation will be of great interest to preserving reservoir storage capacity as well as addressing land loss. This study selected the Takerkouste reservoir, at the outlet of the N'fis basin (High Atlas of Morocco). Four sediment cores and 30 soil samples were collected in the basin. Size distribution and mineralogy of soil and sediment samples were compared and used as tracers to identify the provenances of the sediments reaching the reservoirs from different tributaries. Results show that sediments in the Takerkouste reservoir are illite‐rich minerals with high crystallinity mainly originating from the erosion of schist formations situated in the northern part of the watershed. In parallel, mineralogy, illite crystallinity and chemistry indices of sediments in the reservoir indicate a change in sources because of the construction of a new dam upstream.

show abstract

“…Vegetation lowers ground surface temperatures by providing shade [12,13]. Trees and vegetation decrease ambient air temperature through the process of evapotranspiration, where they release water vapour into the atmosphere [14,15]. In fact, areas with very high temperatures are characterised either by an absence of vegetation or by predominantly artificial impermeable surfaces, such as roads, buildings, pavement, etc.…”

Section: Introductionmentioning

confidence: 99%

The Surface Urban Heat Island and Key Mitigation Factors in Arid Climate Cities, Case of Marrakesh, Morocco

et al. 2022

Self Cite

View full text Add to dashboard Cite

The use of vegetation is one of the effective methods to combat the increasing Urban Heat Island (UHI). However, vegetation is steadily decreasing due to urban pressure and increased water stress. This study used air temperature measurements, humidity and an innovative advanced earth system analysis to investigate, at daytime, the relationship between green surfaces, built-up areas and the surface urban heat island (SUHI) in Marrakesh, Morocco, which is one of the busiest cities in Africa and serves as a major economic centre and tourist destination. While it is accepted that UHI variation is generally mitigated by the spatial distribution of green spaces and built-up areas, this study shows that bare areas also play a key role in this relationship. The results show a maximum mean land surface temperature difference of 3.98 °C across the different city neighbourhoods, and bare ground had the highest correlation with temperature (r = 0.86). The correlation between the vegetation index and SUHI is decreasing over time, mainly because of the significant changes in the region’s urban planning policy and urban growth. The study represents a relevant overview of the factors impacting SUHI, and it brings a new perspective to what is known so far in the literature, especially in arid climate areas, which have the specificity of large bare areas playing a major role in SUHI mitigation. This research highlights this complex relationship for future sustainable development, especially with the challenges of global warming becoming increasingly critical.

show abstract

A new simple approach to assess sediment yield at a large scale with high landscape diversity: an example of Morocco

Cited by 7 publications

References 53 publications

Soil water erosion assessment in Morocco through modeling and fingerprinting applications: A review

Soil water erosion assessment in Morocco through modeling and fingerprinting applications: A review

Clay minerals in soils and sediment as tracers of provenance: The case study of the N'fis watershed, Morocco

The Surface Urban Heat Island and Key Mitigation Factors in Arid Climate Cities, Case of Marrakesh, Morocco

Contact Info

Product

Resources

About