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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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Analyse économique de la culture du maïs et évaluation de l’effet du sarrasin comme engrais vert sur la culture du haricot à Kabarore ( KAYANZA, BURUNDI )
(UB, FS, 2025-12) Nduwayo, Aimé Claude; Sous la Direction de : Pr Salvator Kaboneka (PhD)
Burundian agriculture is largely dominated by subsistence family farming systems. It faces numerous challenges related to declining soil fertility, low yields of food crops, and the increasing impacts of climate change. In this context, the present study aims to analyze the economic profitability of maize ( Zea mays L.) cultivation and to assess the agronomic impact of using buckwheat ( Fagopyrum esculentum Moench) as green manure on the productivity of common bean ( Phaseolus vulgaris L.) in Kabarore Commune, Kayanza Province.
The methodology adopted for this study combines experimental and economic approaches. Sixteen experimental plots belonging to different farmer-researchers were selected for maize cultivation, while four additional plots were used for bean cultivation. An economic analysis based on production costs and revenues was carried out in order to evaluate the profitability of maize cultivation under local conditions. The value–cost ratio (V/C) obtained for the sixteen farmers ranged from a minimum of 1.1 to a maximum of 5.6, with an average of 2.6. Based on the profitability criterion set at a minimum V/C of 2, it was observed that 14 out of the 16 farms studied (nearly 90%) exhibited good to very good economic profitability.
As for the bean experment, field trials were established using a randomized complete block design to compare three treatments on dwarf bean (Mukungugu). In terms of average yield, the results revealed very low yield values: 56 kg/ha for T0 (absolute control + lime), 207.83 kg/ha for T1 (farmyard manure + Fomi-Imbura + lime), and 65.5 kg/ha for T2 [buckwheat (Fagopyrum esculentum Moench) + lime]. Although the trial can be considered an agronomic success, the results indicate that the buckwheat treatment was not more advantageous than the limed control treatment. Moreover, under the harsh conditions of the experiment (severe water deficit during the growing period), it was significantly inferior (by about 30%) to treatment T1 (farmyard manure + Fomi-Imbura + lime). At present, and without further repetition of the experiment, it is not possible to draw definitive conclusions about the fertilizing potential of buckwheat under the agro-ecological conditions of Kabarore Commune, Kayanza Province.
La Mairie de Bujumbura : Gestion des espaces verts et ses incidences socio-économiques, de l’indépendance aux années 2000
(UB, FLSH, 2025-04) Ntiranyibagira, Prosper; Sous la direction de : Dr. Niyongabo Thomas
Elements of culture and prestige, green spaces are, above all, a means of access for all or part of the population to a protected and maintained natural space, dedicated in particular to recreational or decorative purposes. Generally defined as “open and accessible spaces planted with plants”, green spaces include urban parks, monuments, gardens, playgrounds, street trees, etc.; green spaces play numerous roles in urban environments. In the urban planning of the city of Bujumbura, a legacy of colonization (now the economic capital of Burundi), the colonizers intended green spaces for a green urban living environment, allowing for relaxation and beautifying the city. It boasts green spaces linked to its political identity, historical and cultural monuments, and important plant landscapes that bear witness to the value of its past. To this end, it would be preferable to pay particular attention to this heritage with a view to preserving and enhancing it, as it can contribute, on the one hand, to stabilizing the foundations of the Burundian people's culture and identity, and, on the other hand, contribute as a source of income to the country's development. The city of Bujumbura must have a distinct architectural appearance, a green city adorned with trees and flowers, roads with clear rights-of-way allowing easy, unobstructed traffic, the area of various networks available to facilitate operation by network concessionaires, and buildings erected in strict compliance with standards and best practices. A city built according to a planned order with the aim of rationalizing green spaces and allowing for its growth.
Assessment of the influence of food security, eating pattern and physical activity on nutritional status among lactating women in Bujumbura, Burundi
(UB, EANSI, 2026-01) Mkwandu, L Victoria; Sous la direction de : Prof. Dr. Nahimana Hilaire
Lactating women have increased nutritional requirements to maintain maternal health and support optimal infant growth. This study assessed the influence of food security, eating patterns and dietary diversity, daily physical activity on nutritional status among lactating women in Bujumbura. A one-month cross-sectional study using consecutive sampling was used. Data were collected using structured questionnaires on socio-demographic and obstetric characteristics, dietary diversity assessed by the Minimum Dietary Diversity for Women (MDD-W), food security classified according to WHO/FAO guidelines, physical activity measured in MET-minutes/week, and anthropometric measurements. Among 384 participants, 53.3% were aged 20-30 years, 92.7% were married, 64.8% were unemployed, and 72.7% had attained at least secondary education. Most women were 1-4 months postpartum (44.8%) and had fewer than three children (61.8%). Achieving minimum dietary diversity was protective against underweight (AOR = 0.274; 95% CI: 0.077-0.971; p = 0.045) and associated with overweight (AOR = 2.734; 95% CI: 1.053-7.097; p = 0.039). Low physical activity was associated with obesity (AOR = 19.774; 95% CI: 1.741-4.539; p = 0.016) and underweight (AOR = 7.8; 95% CI: 1.484-4.007; p = 0.015), while high physical activity was positively associated with dietary diversity (AOR = 8.918; 95% CI: 2.869-27.719; p = 0.001). Food security alone showed no significant association with nutritional status. Dietary diversity and physical activity were stronger determinants of nutritional outcomes than food security alone, highlighting the need for interventions promoting diverse diets and active lifestyles alongside food access programs.
Inégalités sociales en matière d'accès aux soins de santé au Burundi: une étude sur l'accessibilité à la carte d’assurance maladie pour les groupes vulnérables de la commune Gisagara en province Buhumuza
(UB, FLSH, 2025-11) Bimenyimana, Louis; Sous la direction de : Dr Soeur Rosette Minani
This study examines social inequalities in access to hearthcare in Burundi ,focusing on the accessibility of hearth insurance cards for vulnerable groupes in commune Gisagara at BUHUMUZA province. The main research question explored why inequalities persist despite the legal obligation for every citizen to subscribe to health insurance.The results confirm that health insurance card significantly facilitates access to healthcare for vulnerable populations,validating the central hypothesis .However ,structural and socio- economic barriers sach as registration fees ,distance to health centers ,and administrations delays limit the effectiviness of this policy .Local health institutions play a crucial role in guiding and assisting beneficiaries ,yet their capacity is constrained by limitedlimited resources and staf shortages.Contraly to initial expectations ,discrimination based on residency and lack of information are not major obstacles ,as these minor hyopheses were disproved .Health policies theoretically address inequalities, but their implementation remains uneven and poorly adapted to local realities . The findind indicate that health insurance is an effective tool improving access to healthcare, but alone it con not eliminate disparities . The stady recommends strengthening local institutions, decentralizing services, and implementing targeted support measures to insure truly equitable access for vulnerable populations .
Problématique de la mobilité urbaine : Cas de l’insecurité routière en mairie de Bujumbura (2010 - 2020)
(UB, FLSH, 2022-01) Ciza, Diane; Sous la direction de : Pr. Ir. Bernard Sindayihebura
The city is a place of high concentrations of people who are subject to frequent displacement for various reasons. Means of transport are therefore very necessary to facilitate these daily trips. Modern life has multiplied these movements and tends to reinforce the distances to be covered. However, with the increase in the urban population and the vehicle fleet, we are witnessing congestion problems with considerable loss of time. The urban road in Bujumbura is ill-suited to the traffic it has to withstand in relation to all the means of transport superimposed on the same track. The growth of the vehicle fleet, the poor condition of the roads, their structure, the absence of bus stops, the insufficiency of adequate road signs increase the number of traffic accidents.
The overall objective of this work is to contribute to the improvement of road safety in Bujumbura Town Hall. To achieve this goal, three specific goals have been set. The first specific objective is to identify the causes of road accidents in the city of Bujumbura in order to prevent the risks associated with them. The second is to show that the growth of the car park in the city of Bujumbura is obvious, while the last allows to assess the reception capacity of the urban road network in order to prevent feel the solutions that can increase its capacity to respond to surplus traffic.
As part of this study, two hypotheses were put forward : H1. Road accidents are more frequent on primary roads. The superimposition of the different means of transport on the primary road is the main cause of these accidents.
H2. The increase in the vehicle fleet is the cause of the accidents and congestion observed in the city of Bujumbura.
The methodology used during this work consists of a qualitative approach based on the technique of direct observation. The results of this research showed that the primary roads of Bujumbura are saturated during peak hours (from 7 to 8 a.m. and from 5 to 6 p.m.) and that 67.5 of the accidents occur following collisions between two vehicles while overall, 87.3 of the accidents involve the vehicle component. Also, the cases of rolling accidents occur differ depending on the type of track. Thus, during the year 2019, 50.5 of accidents occurred on primary roads, 43.5 of accidents on secondary roads and the remaining 6 occurred in crossroads.