Sahelian transhumance is a seasonal movement of herds based on strategies. These strategies are based on environmental and socio-economic factors. However, it is empirically difficult to establish the influence of each factor on the spatio-temporal distribution of herds. This paper presents a microsimulation software Sahelian transhumance simulator...
Background: The climate and harvest management practices influence forage production in the Sahel. However, the combined effect of these parameters has not been assessed. Aim: This study aims to measure the joint effect of rainfall and harvesting practices on the quantity and quality of forage. Methods: Aboveground biomass samples were collected du...
Since 2012, development actors have promoted supplemental irrigation from farm ponds to cope with rainfall variability in Burkina Faso, but few farmers have adopted the innovation. Although harvesting runoff water in ponds is an old practice in Sahelian Burkina Faso, farmers were not accustomed to irrigating crops with stored rainwater. In the cont...
Monitoring regeneration in woody communities and understanding the drivers of its success is crucial for gaining insight into the long-term persistence of trees in African drylands, where they play key socio-ecological roles. While fire, grazing and water availability are key factors for regeneration in these ecosystems, seed arrival, germination a...
The Great Green Wall (GGW) is an international initiative to combat land degradation and restore native plant life in the Sahel, but due to a lack of monitoring tools, it remains unknown to be considered as success or failure. Here, we quantify the impact of GGW plantations and Corporate plantations (privately owned) in Sahelian Senegal based on re...
Monitoring available feed for livestock is a key factor for developing pastoralism in the Sahel, and satellite images has proven useful in monitoring dry mass on large spatial scales. This approach requires field measurements of dry mass (herbaceous and woody plants) to calibrate such models based on Earth observation data. However, the need for re...
Due to increasing climate uncertainties, optimizing plant traits is essential for sustainable agriculture. This article presents an approach that combines advanced modelling techniques to identify optimal plant traits under various agro-environmental conditions. By integrating a crop model, a climate generator, and our PEQI algorithm (Profile Expec...
L'intérêt du développement de grands périmètres irrigués pour répondre aux enjeux de sécurité alimentaire des pays du Sahel demeure l'objet de nombreuses critiques quant aux effets négatifs de leur mise en place et de leur exploitation : accaparement des terres, dégradation environnementale, vulnérabilité accrue des ménages… Certaines de ces critiq...
Since the 1960s, droughts have caused significant degradation of Sahelian ecosystems, particularly resulting in a reduction in tree cover. Despite the challenges posed by climate change, the rural Sahelian population continues to depend on natural resources for pastoral livestock farming, which remains a critical source of livelihood. To address th...
To assess the extent to which trees in a semi-arid silvopastoral system (SPS) can offset the greenhouse-gas (GHG) emissions of the system's livestock, this study used two process-based models (STEP-GENDEC-N2O and DynACof) to simulate 9 years of agricultural activity and resulting emissions in a SPS that has been operating in sahelian Senegal. STEP-...
