Agriculture & Environment
Researchers Recommend System Dynamics Approach in the Management of Wetlands
Wetlands provide goods and services like water and fish as well as water purification and flood mitigation. However, they are used unsustainably leading to degradation. The search for fertile soils and water for animals and agricultural use, as well as papyrus for commercial purposes has heightened degradation. According to a study conducted by researchers from the College of Agricultural and Environmental Sciences (CAES), Makerere University and Michigan State University, food and economic security are the main drivers of encroachment and the main activities carried out within the wetland are farming (40%), vegetation harvesting (25%) and fishing (24%). Although a number of interventions have been made to protect wetlands, encroachment persists. To minimize the challenge, it is important for all stakeholders to understand the structure of the wetland system and its linkage with livelihood activities.
Through a project titled, “Participatory Modelling for Livelihood Security and Ecological Integrity in a Ugandan Wetland-Agricultural System”, the researchers led by Dr Ellen Kayendeke from the Department of Environmental Management, CAES, and Prof. Laura Schmitt Olabisi from Michigan State University conducted a survey among wetland users on the drivers of wetland degradation and how this impacts ecosystem services. The overall objectives of the project were; i) to generate information about the causal links and feedback mechanisms between wetland management and livelihood activities, and ii) to create an improved and shared understanding of the wetland-agricultural system structure among the stakeholders. Other members on the project included Prof. Frank Kansiime from the Department of Environmental Management; and Prof. David Mfitumukiza from the Department of Geography, Geo-informatics and Climatic Sciences, CAES, Makerere University.
According to the research findings, wetland degradation impacts long-term agricultural productivity, which then perpetuates a cycle of food insecurity and poverty. The short term effects of encroachment include reduction in wetland flora and fauna, and reduced ability to supplement food needs. The long term effects include reduction in soil fertility and low yields.
Disseminating their findings to stakeholders on 24th August 2022, the researchers noted that wetland users are aware of the impact of degradation on ecosystem services, but continue to encroach on wetlands. The encroachers claim they cannot vacate the wetlands because of a lack of alternative livelihoods. The researchers advise that efforts to regulate wetland use and educate stakeholders on wise use of wetlands should be complemented with support of alternative livelihoods.
Using a system dynamics approach, the researchers generated visual representations (Causal Loop Diagrams) to illustrate the structure and feedback loops of the wetland-agricultural system in Uganda, with a case study of Naigombwa wetland in Iganga District. According to Prof. Laura Schmitt Olabisi, System Thinking is key when dealing with environmental management given the interconnection between different actors.
During the research dissemination workshop held at Fairway Hotel in Kampala, the project team sensitized participants on System Dynamics (SD) and Causal Loop Diagram (CLD) methodology and its application to natural resources management. The workshop also served as a platform to validate the CLD of Iganga wetland-agricultural system, and to discuss potential policy measures for effective wetland management.
The meeting was attended by the Commissioners, Wetlands Management and Capacity development at the Ministry of Water and Environment; as well as representatives from the National Environment Management Authority; Iganga District Local government; CAES; Ministry of Agriculture, Animal Industry and Fisheries (MAAIF); Institute of Environment and Natural Resources (SIENR), Uganda National Association of Community and Occupational Health (UNACOH), GIZ, the media, and a representative of rice farmers in Iganga District.
The workshop was graced by the Deputy Principal of CAES, Prof. Yazidhi Bamutaze, and the Head, Department of Environmental Management at CAES, Prof. Justine Namaalwa.
Refurbished gate to boost the institute’s aesthetics, security, accessibility, and sustainability
Makerere University College of Agricultural and Environmental Sciences (CAES) has completed the refurbishment of the main gate at the Makerere University Agricultural Research Institute Kabanyolo (MUARIK). The renovation was carried out by students from both CAES and the College of Engineering, Design, Art, and Technology (CEDAT), under the supervision of their academic mentors.
According to the Principal of CAES, Prof. Gorettie Nabanoga, the revamped gate now truly reflects the spirit of Makerere University and will significantly enhance the institute’s visual appeal, security, accessibility, and sustainability. The refurbished gate was officially commissioned by the Vice Chancellor, represented by the First Deputy Vice Chancellor in charge of Academic Affairs, Prof. Buyinza Mukadasi. The ceremony was attended by the Deputy Vice Chancellor in charge of Finance and Administration, Prof. Winston Tumps Ireeta, alongside CAES staff, students, and partners.
About MUARIK
Established in 1953, MUARIK serves as a hub for numerous research projects and facilities within CAES. It houses centres such as the Makerere University Regional Centre for Crop Improvement (MaRCCI), the Makerere University Centre for Soybean Improvement and Development (MakCSID), the Continuing Agricultural Education Centre (CAEC), the Centre of Excellence in Waste Management, and the Consortium for Enhancing University Responsiveness to Agribusiness Development (CURAD).
Additionally, MUARIK hosts KOICA-funded projects, including a modern layers production unit and a climate-controlled greenhouse for vegetable production. These units operate independently but collectively contribute to MUARIK’s dynamic research environment.
MUARIK also houses research units for the School of Agricultural Sciences (SAS) such as the Biotechnology and Tissue Culture Laboratories, experimental fields, Horticulture and Livestock Units, and the black soldier fly project. It accommodates training and research facilities for the Schools of Food Technology, Nutrition, Bioengineering, and the School of Forestry, Environmental, and Geographical Sciences. It also hosts hostels for both local and international students who stay at the Institute to gain practical experience in production and research under typical farming conditions.
Enterprises and Research at MUARIK
Enterprises at MUARIK include approximately 100 acres of pastures, a dairy farm, feed mill, silage production, poultry unit, piggery unit, banana and coffee plantations, maize and soybean crops, horticulture, goat farming, and the recently revived rabbit unit featuring four breeds: New Zealand White, Chinchilla, California White, and Flemish Giant.
Current research initiatives focus on edible insects and worms as alternative livestock feeds, agroforestry, horticulture, and value addition in food processing. MUARIK maintains a strong partnership with the Uganda Flowers Exporters Association (UFEA), collaborating on the commercial testing of new flower species to diversify Uganda’s flower exports beyond traditional rose bouquets. Collaborative efforts also include identifying native natural enemies to control Chrysanthemum pests, working with UFEA, Wageningen University, breeders, and the National Agricultural Research Organization.
As part of Uganda’s National Agricultural Research System (NARS), MUARIK prioritizes research in biotechnology, tissue culture, plant breeding, improved farming methods, agro-processing, value addition, and marketing.
Tour to Assess the Capacity and Condition of Facilities at MUARIK
As part of the commissioning ceremony, the Principal of CAES, Prof. Gorettie Nabanoga, led visitors on a comprehensive tour of the Makerere University Agricultural Research Institute, Kabanyolo (MUARIK). The purpose of the tour was to provide first-hand insight into the institute’s current infrastructure, operational capacity, and ongoing challenges.
During the visit, Prof. Nabanoga highlighted both the strengths and limitations of the institute. While the tour showcased MUARIK’s potential as a hub for agricultural research and innovation, it also brought to light a number of critical issues affecting its functionality. Chief among these is the persistent challenge of land encroachment, which continues to threaten the integrity and sustainability of the institute’s operations.
In her remarks, Prof. Nabanoga commended Dr. Cyrus Ongom, the outgoing Director of MUARIK, for his unwavering dedication to safeguarding the institution’s land. She acknowledged his resolute efforts in the face of persistent threats and numerous challenges, emphasizing the vital role he played in preserving MUARIK’s integrity. “This year, we aim to further reposition MUARIK as a leading centre for agricultural innovation and production in the region,”said Prof. Nabanoga. “Our focus will be on strengthening research, fostering partnerships with stakeholders, and enhancing the capacity of our infrastructure to support sustainable and impactful agricultural practices.”
The Principal expressed gratitude to all who have supported the transformation journey of CAES. “As we celebrate our achievements today, we take this moment to recognize and honour everyone who has been part of our transformation journey,” the Principal said. “We are especially grateful to the Vice Chancellor, Prof. Barnabas Nawangwe for his unwavering support, which has been instrumental in driving the College forward.”
Delivering his remarks, the Deputy Vice Chancellor in charge of Academic Affairs (DVCAA), Prof. Buyinza Mukadasi, commended the CAES for its remarkable achievements in training and research.
“From my assessment, CAES has consistently excelled across its core mandates – training, research, production, and community outreach. The College has played a crucial role in advancing the agricultural sector through innovative research, high-quality academic programmes, and meaningful community engagement. These efforts have made a significant contribution to Uganda’s national development goals and the transformation of its agricultural landscape. Given its demonstrated success and strategic relevance, CAES is highly deserving of enhanced investment and funding to further expand its impact,” he stated.
CAES Annual Awards and Staff Recognition Ceremony
The CAES Annual Awards and Staff Recognition Ceremony celebrated the outstanding achievements of dedicated teaching, administrative, and support staff. During this special event, several members of staff were acknowledged and honoured for their exceptional performance, commitment, and contributions to the College’s success.
Commenting on the significance of the awards, Prof. Buyinza praised the initiative, emphasizing that such recognition serves as a powerful motivator. He highlighted how acknowledging excellence not only boosts morale but also inspires continued dedication and fosters a culture of high performance.
Click on the link below to access the list of staff recognized for exceptional performance.
More pictures from the event
It is with profound pride, reflection, and vision that I present the 2024 Annual Report for the College of Agricultural and Environmental Sciences (CAES) at Makerere University. This report is more than a summary of the milestones in 2024 – it is a powerful testament to what is possible when a dedicated academic community rallies behind a common purpose. It encapsulates the collective effort, ingenuity, and resilience of our faculty, researchers, administrators, technical teams, students, alumni, and partners – each of whom has contributed meaningfully to advancing our threefold mandate: Teaching and Learning, Research and Innovation, and Knowledge and Technology Transfer Partnerships.
Throughout 2024, we deepened our resolve to nurture not only competent graduates, but also purpose-driven leaders capable of shaping the future of agriculture, environmental stewardship, and food systems across Uganda, Africa, and beyond. Through transformative curricula, cutting-edge facilities, and a strong commitment to STEM-based experiential learning, CAES continues to empower a new generation of innovators – technically sound, ethically grounded, and globally aware.
Our academic programs continued to evolve in both quality and relevance. We offered 48 academic programs—including 15 undergraduate, 19 masters, 11 PhD, and 3 postgraduate diploma programs. A total of 2,339 students were enrolled in 2024, with 60% of undergraduate learning delivered through hands-on, field-based instruction. At the 74th graduation ceremony, 638 students graduated, including 20 PhDs, 104 masters, and 511 bachelor’s degree recipients. Notably, we celebrated 25 first-class graduates who represent academic excellence across disciplines.
Through over 100 partnerships, we translated knowledge into impact. Initiatives like CURAD, FTBIC, and MaRCCI empowered communities in agribusiness, food safety, and climate resilience.
I thank our entire community for your commitment and collaboration. Together, we are not only advancing knowledge but shaping sustainable futures across Uganda and beyond.
Prof. Gorettie Nabanoga
Principal, CAES
Follow the link below to access the full report;
https://drive.google.com/file/d/1nNsX8Cohq7whbC9zkd3j4DpBRa7kygDP/view
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