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The main objective of this study is to analyse the trends and variability of extreme weather indices in the Boucle du Mouhoun region of Burkina Faso. To this end, meteorological data for the period 1991 to 2021 were obtained from the National Meteorological Agency of Burkina Faso. These meteorological data (rainfall, temperature) were integrated into the Rclimdex software to generate extreme climate indices (rainfall, temperature). These data were then analysed by means of homogeneity tests (Pettitt and von Neumann ratio), trend tests (Mann-Kendall, Sen's slope) and the frequency of the return period of the extreme climate indices using XLSTAT (Statistical Software for Excel) 2023. The study shows that the precipitation indices are overall homogeneous (p-value ≥ 0.05) and that there is no significance (p-value ≥ 0.05) for the trend of the extreme precipitation indices from 1991 to 2021. Conversely, the temperature indices are not homogeneous (p-value ≤ 0.05), and a significant upward trend was observed for the maximum temperature index (p-value ≤ 0.05) and the minimum temperature index (p-value ≤ 0.05). The extreme climate indices also show considerable variability over the period 1991-2021. Moreover, the return periods for the occurrence of extreme climate indices are shorter, ranging from 0 to 10 years. It is therefore important that regional authorities in the area develop strategies to consolidate water infrastructures and provide financial support to producers, especially banana producers.

Les petits barrages sont importants pour le monde rural au Burkina Faso. À Lapara, dans la commune de Boromo, leur exploitation a permis l’émergence d’une véritable filière de la banane douce qui touche la Boucle du Mouhoun, la région des hauts bassins et la région du Centre du Burkina Faso. Cependant, ces dernières années, le système de culture dans les bananiers de jadis a été recomposé et de nouveaux systèmes de culture à base de banane émergent. L’objectif principal de cette étude est d’analyser les déterminants de la recomposition des systèmes de culture dans les bananiers autour du barrage de Petit Balé, du village de Lapara. Pour ce faire, une méthodologie a été mise en place. Elle a consisté en une revue de la littérature relative à la thématique de recherche, un échantillonnage de la population cible à investiguer, des enquêtes de terrain auprès de cent (100) producteurs, et des observations pour se faire une idée de la réalité du terrain. Les résultats de l’étude montrent que huit (08) systèmes de culture à base de bananiers ont été identifiés en raison de l’introduction de la culture maraîchère. Cette recomposition est principalement le résultat de facteurs sociodémographiques, économiques, géographiques et la survenue de la pandémie Covid-19 dans la zone et dans le reste du Burkina Faso.

Purpose. The objective of the study is to assess the sustainability of adaptation strategies promoted by farmers in agroforestry systems in Burkina Faso through the sustainable development analysis guide (SDAG). For this purpose, primary data were collected by the survey method. One hundred and four (104) people were interviewed using a questionnaire. Secondary data were also used. Descriptive statistics and the Excel logical test were used to analyse the collected data. Results. The results show that in a context of climate variability, farmers mobilize several strategies such as: proactive, reactive and combined strategies. The adaptation strategy index shows that proactive strategies are strongly used, followed by combined proactive strategies, reactive strategies and silvicultural techniques. However, the first three strategies are used more by farmers. Moreover, the evaluation of the strategies used by farmers was based on the first three strategies. It was found that proactive and combined strategies are more sustainable than reactive ones, as farmers have difficulties in assessing the climate risks they face. Thus, the environmental component of sustainable development is strongly impacted by reactive strategies, which is reflected in the low weighting of respondents and experts. Scientific novelty. The novelty is the use of the sustainable development analysis guide, which allows the sustainability of farmers’ adaptation strategies to be assessed. The tool made it possible to compare the results of field survey and the opinions of experts (through a literature review) with dimensions of sustainable development (social, economic, environmental). Thus, for each dimension, variables and indicators were associated. Thanks to the tool, the results were achieved. Practical value. The advantage of this approach is that sustainability assessment can be done through empirical data (from surveys). This is important for developing countries such as Burkina Faso where assessments based on economic techniques are difficult, as the rural population is mostly illiterate.

Context and background Climate variability is a reality in Burkina Faso, and climatic disasters are the visible effects. This poses huge challenges for governments and local populations alike. However, it is difficult to implement any real policy without understanding the phenomenon and its social and environmental consequences. Consequently, the main hypothesis of the study is that natural disasters are dynamic and therefore cause socio-environmental problems in the country. Goal and Objectives: The main objective of the study is to analyze climate-related disasters in Burkina Faso between 1960 and 2020 and their socio-environmental impacts. This involves analyzing the dynamics of climatic disasters between 1960 and 2020, identifying the areas affected by climatic disasters and analyzing the socioenvironmental impacts of climatic disasters. Methodology: The study is based on combining quantitative and qualitative methods. Results: The results show that droughts and floods are the main climatic disasters in Burkina Faso over the period 1960-2020, although a succession of droughts (57.14%) and floods (42.86%) was observed over the period 1960-1999. Conversely, there were more floods than droughts over the period 2001-2020. Furthermore, the socio-environmental and territorial impact of climatic disasters varies according to Burkina Faso's climatic zones. In addition, many waterworks have been destroyed, with negative external effects on the environment. In view of these results, the government of Burkina Faso would be well advised to review the specifications for the country's waterworks in order to adapt them to the new conditions. In addition, the agricultural seeds promoted by Burkina Faso's agronomic research institutes should be geared towards seeds that can adapt to water. This will reduce the impact of climate disasters in the years to come. [ABSTRACT FROM AUTHOR]

Contexte et contexte La variabilité climatique est une réalité au Burkina Faso, et les catastrophes naturelles en sont les effets visibles. Cela pose d’énormes défis tant aux gouvernements qu’aux populations locales. Cependant, il est difficile de mettre en œuvre une véritable politique sans comprendre le phénomène et ses conséquences sociales et environnementales. Par conséquent, l’hypothèse principale de l’étude est que les catastrophes naturelles sont dynamiques et provoquent donc des problèmes socio-environnementaux dans le pays. But et objectifs : L'objectif principal de l'étude est d'analyser les catastrophes liées au climat au Burkina Faso entre 1960 et 2020 et leurs impacts socio-environnementaux. Il s’agit d’analyser la dynamique des catastrophes naturelles entre 1960 et 2020, d’identifier les zones touchées par les catastrophes naturelles et d’analyser les impacts socio-environnementaux des catastrophes naturelles. Méthodologie: L'étude repose sur la combinaison de méthodes quantitatives et qualitatives. Résultats: The results show that droughts and floods are the main climatic disasters in Burkina Faso over the period 1960-2020, although a succession of droughts (57.14%) and floods (42.86%) was observed over the period 1960-1999. Conversely, there were more floods than droughts over the period 2001-2020. Furthermore, the socio-environmental and territorial impact of climatic disasters varies according to Burkina Faso's climatic zones. In addition, many waterworks have been destroyed, with negative external effects on the environment. In view of these results, the government of Burkina Faso would be well advised to review the specifications for the country's waterworks in order to adapt them to the new conditions. In addition, the agricultural seeds promoted by Burkina Faso's agronomic research institutes should be geared towards seeds that can adapt to water. This will reduce the impact of climate disasters in the years to come.