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Le dépôt numérique grenier du savoir du Burundi est une collection de documents scientifiques produits par les chercheurs de l'Université du Burundi, y compris des mémoires, des thèses, des revues, des articles, des rapports techniques, etc. Il s'agit du dépôt institutionnel officiel de l'Université du Burundi

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Grenier du Savoir du Burundi

Recent Submissions

La collaboration dans le pluralisme thérapeutique au Burundi : étude menée dans les communes Mukaza et Ntahangwa de la province de Bujumbura
(UB, FLSH, 2026-09)
Iradukunda, Jean-Marie
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Sous la direction de : Dr. Vénérand Nsengiyumva
This research work focuses on collaboration within therapeutic pluralism in the communes of Mukaza and Ntahangwa in Bujumbura Province. It analyzes the interactions between biomedical practitioners, traditional healers, and religious leaders, as well as their effects on patients’ therapeutic pathways and access to healthcare services. The study is based on the observation that the Burundian healthcare system is characterized by the coexistence of multiple therapeutic systems operating simultaneously. The main objective is to examine the dynamics of collaboration, competition, and tension among these actors in order to understand their socio-anthropological implications for healthcare delivery. Data were collected through a qualitative approach, including interviews, life histories, and documentary analysis involving the various stakeholders. The findings show that collaboration among therapeutic actors mainly exists in informal forms, particularly through patient referrals and occasional advice between practitioners. However, this collaboration remains limited by several constraints, including mutual mistrust, cultural and religious differences, the absence of a clear legal and institutional framework, andconflicts over legitimacy between healthcare systems. Patients play a central role in connecting these systems by constructing multiple and circular therapeutic itineraries. The study concludes that therapeutic pluralism is both a resource for the healthcare system. It promotes diversified access to care but also leads to fragmented and sometimes inefficient therapeutic pathways due to the lack of coordination. Therefore, formalizing collaboration, strengthening health education, and valuing local knowledge appear as key strategies to improve comprehensive patient care.
Contribution à l’étude des mouvements de masse dans le bassin versant de la rivière Gikoma
(UB, F S, 2026-03)
Ntawumenya, Joseph
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Sous l’encadrement de : Dr. Désiré Kubwimana
Ground instability is one of the most spectacular and frequent geodynamic phenomena worldwide. Its occurrence causes significant morphological changes to the terrain and affects exposed infrastructure, human activities, and ecosystems. These phenomena result from several factors that contribute to their occurrence. The Gikoma River watershed is located partly in the Imbo plain and partly in the Mirwa region, in the province of Bujumbura. Due to its natural characteristics, this watershed is particularly prone to the development of numerous types of ground instability. These are influenced by several factors, including lithology, pedology, rock fracturing, land use, the hydrographic network, slope and exposure of the slopes. The highly rugged topography, torrential rains and reduced vegetation cover are the main factors contributing to the instability of the terrain in this watershed. During the rainy season, the clay soils become saturated with water and more susceptible to landslides. During the rainy season, clay soils become saturated with water and more prone to slipping. An inventory of ground instability was carried out by analysing aerial images and photographs and based on in situ observations. A total of 78 mass movements were identified: rockfalls (37.20%), translational slides (26.92%), rotational slides (7.69%), complex movements (6.41%), collapses (8.97%), fissures (3.85%), water erosion (3.85%), mudflows (2.56%), scouring (1.28%) and subsidence (1.28%). Slope and torrential rainfall are the main factors playing a major role in the process of land instability in the study area. A diachronic study of land use based on satellite images from 2002, 2014 and 2024 reveals that changes in land use play a major role in triggering ground movements within the Gikoma River watershed. The recent intensification of these phenomena is thought to be mainly linked to the gradual deterioration of the environment in the catchment area. After subjecting the factors responsible for ground instability to hierarchical multi-criteria analysis using an AHP method, the susceptibility map produced showed the stable areas (Buhayira, Giterama and Tenga) and unstable areas (Kindobwe, Kagoma, Kwigere, Masake and along the watercourses: Kigezi, Nkuri and Karunga) in our study area.
Etude de la distribution géographique, du stock et de l’importance socio-économique du raphia Ruwenzorica otedoh au Burundi : cas des provinces Bujumbura et Rumonge
(UB, FS, 2022-03)
Nimbona, Eric
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Sous la direction de: Prof. Jacques Nkengurutse
The aim of the study is to contribute to the knowledge of Raphia ruwenzorica in Burundi in order to ensure its sustainable conservation. The study took place in the natural region of Mumirwa in the provinces of Bujumbura and Rumonge. The data of number of feet of species were obtained from an inventory carried out along rivers and their tributaries while information regarding the socio-economic importance of the species was collected by survey. The results show that in Bujumbura province the species is present in the communes of Kanyosha, Nyabiraba, Kabezi and Mutambu while in Rumonge province, it is present in the communes of Buyengero and Burambi. A total of 8172 Raffia ruwenzorica plants including 1181 flowering plants, 5918 flowerless plants and 1073 young plants were recorded in the study area. Almost all parts of Raffia ruwenzorica can be used, but the fibers from the leaves of this plant are the most used by the local population in making mats. The fibers are also used for braiding hats. They are still used by the Intore and Umuyebe dancers in various ceremonies across the country. Hives are made from the petioles and trunk of the species. The latter are also used as firewood but also in the construction of fences and stables. The species is in decline in its area of distribution. The results of the present study reveal that the species is regressing in the study area, even though it is the preferred species and ranks the first among the indigenous species important to the population. Thus, it is essential to undertake actions to disseminate seedling and the relative techniques of their production.
Contribution à l’étude spatio-temporelle des problèmes de dégradation de l’environnement en zone urbaine et péri-urbaine de Bujumbura : cas des sites de Kinama et Karama
(UB, FS, 2022-03)
Niyonkuru, Schadrack
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Sous la direction de : Dr Anicet Sindayihebura
The main cause of environmental changes on a global scale is generally the intensification of human activities. Human always tries to cover his well-being by satisfying his needs. In order to achieve his goals, he must use the natural resources whose exploitation requires a conscious mind of future generations. Population growth causes directly an increased demand for natural resources and the expansion of cities. Cities are spread very widely, mixing with rural areas in a diffuse way, preventing a clear and coherent identification of the territory because of the infinite need for space. Urban sprawl is increasing in parallelism with a demand for construction materials, the exploitation of which generates risks of environmental degradation. The city of Bujumbura in Burundi has been growing since the end of the civil war in 2003 and new neighborhoods are springing up day by day after the clearing of agricultural areas and vegetation. It is therefore up to the scientist to make available tools that can help policy makers to remedy the consequent problems of this over-urbanization. For this purpose, a study was undertaken on two peripheral sites of the city of Bujumbura to study the problems of environmental degradation associated with the spatiotemporal dynamics of the two sites between the years 2005 and 2020. The two sites are Kinama located in the in the north of Bujumbura city and Karama, located in the northeast of the city at the foothills of Mumirwa. This is a site that was valued by quarry operators. The ETM 2005, 2010, and OLI-TIRS 2015, 2020 satellite images of the two sites were downloaded and processed by supervised classification in ArcGIS10.4.1. The results obtained showed a regression in the vegetation cover of 631.81 hectares for the Kinama site from 2005 to 2020, while the area covered by buildings increased by 575.58 hectares during this period. The uncovered surface has also increased what puts the site at risk of flooding. The same case was confirmed for the Karama site where the built up surface has increased by 203.84 hectares while the vegetation cover has regressed by 210.31 hectares, with a small regression of the bare surface in favor of the buildings. Our study has stressed the demographic explosion which generates the increased demand for natural resources but also for surplus surfaces for housing. We have not forgotten the effects of climate change associated with human activities. Perspectives relating to the management of house building through the social housing policy, the effective management of births to control population growth and the Burundian population information in terms of environmental management have been issued in order to be able to contribute to the guarantee of a healthy environment.
Action socio-culturelle de l’Eglise Adventiste du Septième Jour auprès de la jeunesse au Burundi de 1935 à 2018
(UB, FLSH, 2022-03)
Niyonkuru, Amos
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Sous la direction du : Pr Emile Mworoha
The title of our research work is “SOCIO-CULTURAL ACTION OF THE SEVENTH DAY ADVENTIST CHURCH NEARBY THE YOUTH IN BURUNDI FROM 1935 TO 2018”. The Seventh-Day Adventist Church's part, like other churches, is indispensable in the life of the society. Indeed, the main objective of our work is to highlight the social domains in which the Seventh-Day Adventist Church participates in order to face the brakes of progress in order to guarantee a sustainable development in Burundi. Firstly, it was a question of reviewing the context of history, dissemination of the doctrine and extension of the Seventh-Day Adventist Church in Burundi. After that, in a second step, it is necessary to analyse the part of the Seventh-Day Adventist Church in the education of the youth in Burundi, which is manifested through families, Adventist churches, camps, Radio "AGAKIZA" and schools. Lastly, we tried to establish the actions of this Church in terms of health, primary prevention based on the consumption of plants instead of industrial and animal products. Definitely, it was shown that from the legal installation of its white missionaries in Urundi until 2018, the Seventh-Day Adventist Church in Burundi has acted favourably in the accomplishment of its educational and health tasks following good relations with the State and the other Protestant churches, Catholic and Muslim through the AMR.