Dynamique d’occupation du sol des zones humides urbanisées de Dakar (Sénégal) de 1942 à 2014

Aimée, Diop; Sambou, Hyacinthe; Diop, Cheikh; Elysée, Ntiranyibagira; Dacosta, Honoré; Sambou, Bienvenu

doi:10.4000/vertigo.20120

Cited by 3 publications

(1 citation statement)

References 4 publications

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“…From example, Li et al (2012) have employed in their study an evaluation support system to accommodate the prevalent scenario structures of the Liaohe River Delta wetlands. Remote sensing was used to classify wetlands in central North Dakota (Rover et al, 2011) and Geographic Information System (GIS) was applied to analyze the land cover spatial dynamics of the wetlands located in Dakar (Aimée et al, 2018). Recently, Abalo et al (2021) have calculated the Normalized Difference Vegetation Index and used Google Earth images to evaluate the land use of wetlands in Togo, particularly in the Ogou basin and have practice the «LECOS» extension of the Quantum GIS software to calculate landscape fragmentation.…”

Section: Introductionmentioning

confidence: 99%

Ecosystem behavior face to climatic changes and anthropogenic actions. Case study: a north-eastern urban wetland, Tunisia

Allouche¹,

Ajmi²,

Boussema³

et al. 2022

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Wetlands environments are ecosystems threatened by climate change and urban sprawl. Studying the behavior of Sabkhaof Sousse, the green lung of the industrial region of Sidi Abd Elhamid in north-eastern Tunisia, is necessary to improve the living conditions of the population living within this ecosystem. This study analysis the impact of climate change and human activities on the seasonal and pluriannual behavior of this Sabkha by using multitemporal series of high-resolution satellite imagery, and a survey among the inhabitants of the area. Shorelines from 2003 to 2019 were vectorized in GIS environment using georeferenced images from Google Earth platform. Then, Land Use Land Cover changes were detected by using Environment Visualizing Imageries software. Results show that built-up and cultivated areas have increased by 4.3 % and 18.5 % respectively in the North and East side of the study area. Moreover, climatic changes during the seasons lead to changes in the soil occupation. Hence the importance of setting up strategies to preserve this brittle ecosystem. The development of an urban park around the Sabkha will enhance the local population's living conditions while also protecting the Sabkha from degradation.

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Section: Introductionmentioning

confidence: 99%

Ecosystem behavior face to climatic changes and anthropogenic actions. Case study: a north-eastern urban wetland, Tunisia

Allouche¹,

Ajmi²,

Boussema³

et al. 2022

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High Level of Salmonella Contamination of Leafy Vegetables Sold around the Niayes Zone of Senegal

et al. 2023

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Foodborne diseases are an important public health concern worldwide. Following a first global estimate of the burden of these diseases by the World Health Organization in 2015, many high-income countries implemented the generation of national data as a part of strategies to limit the transmission of pathogens through the food chain. In contrast, low-income countries, especially in the sub-Saharan Africa region, have limited data available on the burden and the source of contamination of produce destined for human and animal consumption. In this study, we analyzed Salmonella contamination of vegetables sold in supermarkets and open wet markets of five cities located in the Niayes zone, an area of high market gardening activities in the north western area of Senegal. We found high levels of Salmonella contamination of leafy vegetables, including mint leaves, parsley and lettuce. Contamination was higher in samples from supermarkets compared to open markets. Our results stress the need for an active surveillance of the microbiological quality of vegetables in Senegal, especially the presence of Salmonella, in order to prevent the risk of transmission of this bacterium through the food chain.

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Spatio-Temporal Dynamics of Land Use Units in the Kadzel Sub-Catchment Basin in Diffa, Niger

Kaoulé,

Boubacar,

Abdorhimou

et al. 2024

JGIS

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Dynamique d’occupation du sol des zones humides urbanisées de Dakar (Sénégal) de 1942 à 2014

Cited by 3 publications

References 4 publications

Ecosystem behavior face to climatic changes and anthropogenic actions. Case study: a north-eastern urban wetland, Tunisia

Ecosystem behavior face to climatic changes and anthropogenic actions. Case study: a north-eastern urban wetland, Tunisia

High Level of Salmonella Contamination of Leafy Vegetables Sold around the Niayes Zone of Senegal

Spatio-Temporal Dynamics of Land Use Units in the Kadzel Sub-Catchment Basin in Diffa, Niger

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