Welcome to CGSpace

Identify, locate and download research and other outputs produced across CGIAR and its partners.

Content is organized in communities and collections and includes outputs from CGIAR’s current research and innovation portfolio, outputs of CGIAR research centers and hosted content of other organizations and programs. Read more about the content we hold.

Browse communities and collections

Search using free or controlled terms and filters

Explore, visualize and generate reports

Learn about using and submitting content

Our Research Collections

CGIAR 2030 research and innovation portfolio

CGIAR research centers

All content

Research Themes

Climate adaptation and mitigation

Environmental health and biodiversity

Gender equality, youth and social inclusion

Nutrition, health and food security

Poverty reduction, livelihoods and jobs

Recent Submissions

Who is leaving African agriculture? Nine stylized facts on youth, women, and agrifood employment in 15 countries
(Working Paper, 2026-08-31) Bachewe, Fantu Nisrane; Abay, Kibrom A.; Chamberlin, Jordan; Korir, Josphat
Sub-Saharan Africa faces an unprecedented labor market challenge: over the next decade, hundreds of millions of young people will enter a workforce still concentrated in the agrifood system (AFS). Yet the demographic structure of AFS employment remains poorly understood, i.e., how youth and women participate across farming, processing, trade, and food services across the region. Here we analyze disaggregated employment data across 15 sub-Saharan African countries, differentiating AFS employment by age and sex across three country groups defined by their stage of structural transformation. We report nine stylized facts that challenge prevailing narratives. Contrary to common belief, youth are not disproportionately exiting agriculture relative to adults. Women and youth are more concentrated in the nonfarm AFS, especially in diversified economies where such opportunities are more prevalent, but gender segmentation deepens with transformation as male employment becomes more concentrated in commercial agriculture and women dominate downstream food-service roles. These patterns call for differentiated, transformation-aware policies to make AFS employment more productive and inclusive for Africa's youth and women.
Unlocking local knowledge production for global water systems analysis
(Abstract, 2026-05-03) Buytaert, Wouter; Tilahun, Seifu A.; Paschalis, Athanasios; Bonetti, Sara; Vishwakarma, Bramha; Crespo, Patricio; Drenkhan, Fabian; Agyei-Mensah, Samuel; Ochoa-Tocachi, Boris; Mijic, Ana; Arcucci, Rossella; Moseley, Ben; Howard, Ben
Global freshwater systems are critically threatened by environmental change and overexploitation, stressing the need for novel, transformative solutions. As social-hydrological systems are diverse and complex, water-related risks and decision-making needs are often strongly embedded in a locally specific context. Therefore, such solutions need to be informed by solid scientific evidence while remaining tailored to local realities, knowledge, and practices. However, the current generation of global water system models struggles to produce evidence that is accurate, tailored, and actionable at the local scale. Here we outline an approach to support local knowledge co-production and its integration with existing and emerging data sources in global water system models. We focus on three knowledge sources that are currently underrepresented in global modelling approaches: non-statutory monitoring, citizen observations, and local knowledge. We show how data science methods such as semantic data models, distributed workflows, and machine learning can be leveraged to develop novel knowledge integration pipelines. These pipelines explicitly represent data provenance and track epistemic and aleatoric uncertainties across heterogeneous data sources. When combined with flexible modelling frameworks, this approach provides a blueprint for next generation simulation systems that bridge global modelling and local decision-making. Such systems enable the identification, prioritization, and targeted reduction of local knowledge gaps, thereby enhancing the relevance and legitimacy of global water assessments for regional and community-level action.
Setting priorities: case study of IITA’s root and tuber crops systems program
(Journal Article, 2010) Manyong, V.M.; Okechukwu, R.U.; Ojiambo, P.; Asiedu, R.
This report presents results from a priority setting exercise conducted on the strategic objectives and activities of the Root and Tuber Systems Program as a part of a process to develop strategic plans to guide the activities of IITA for the following 10 years. The scoring method was applied to rank activities and statistical tests were used to validate the ranking from the scoring method. Thirty-five Project members participated in data generation.The results indicate the proportion of each strategic objective between 18 and 22%. Within each strategic objective, the score of each activity relative to the maximum achievable score resulted in the ranking of activities. Statistical tests showed some activities to be significantly not different in ranking from others. There is a clear importance attached to activities of strategic objective 1, compared to those of the others. Activity 4 of strategic objective 1 emerged as a top activity among all the activities. The disciplines of scientists did not affect the scores significantly or the perceived importance of activities. It is advocated that priority setting is an iterative process that needs to be implemented continuously in various steps to improve the efficiency of the project operations.
Scaling Climate-Resilient Irrigation: Partnership Alignment, Coordinated Pathways, and Learning in Nigeria
(Report, 2026-08-31) Oluwaseun, Ojeleye Adebayo; Oke, Adebayo; Balana, Bedru; Kirui, Oliver Kiptoo; Tilahun, Seifu A.; Owolabi, Mubaraq Adetunji; Calvin, Ojeleye
The Scaling Climate-Resilient Irrigation Workshop, held in Abuja on March 24, 2026, provided a strategic pathway to address Nigeria’s irrigation deficit and strengthen year-round agricultural production. Under the CGIAR Scaling for Impact (S4I) Program, IWMI and IFPRI presented a three-year roadmap for 2026–2028 to accelerate the adoption of solar-based irrigation solutions, particularly through farmer-led irrigation development. The program targets 120,000–150,000 smallholder farmers across priority northern states, marking a shift from isolated pilot interventions to coordinated, large-scale deployment. A central message from a workshop on Scaling Resilient Irrigation in Nigeria was that scaling solar irrigation requires more than technology alone; it depends on an integrated ecosystem that connects farmers, finance, technology providers, policymakers, and institutions. Stakeholders identified weak institutional coordination as a major constraint, despite the availability of relevant technologies, programs, and financing opportunities. Financial institutions emphasized that organizing farmers into clusters and cooperatives is essential for reducing investment risk and improving access to affordable finance. Drawing on lessons from India’s large-scale solar irrigation experience, participants advocated a coordinated demand–finance–technology–linkage approach, supported by smart subsidies, tariff waivers, or affordable credit. The workshop concluded with commitments to strengthen coordination, digital extension services, localized financing models, and partnerships to establish a sustainable national system for climate-resilient irrigation.
Weed biomass dynamics in planted fallow systems in the humid forest zone of southern Cameroon
(Journal Article, 2007-07-03) Banful, B.K.; Hauser, S.; Ofori, K.; Kumaga, F.K.
Interest in planted fallow systems has focused on soil fertility improvement, neglecting other potential benefits of such systems. It is important to quantify other processes responsible for crop yield increases under planted fallows, such as weed control. The suppressive potential on weeds of Flemingia macrophylla [(Willd.) Merrill] and Pueraria phaseoloides (Roxb.) Benth, planted fallows was evaluated in field trials in three villages in southern Cameroon. In each village, experiments were set up in 4–5 year-old bush fallow dominated by Chromolaena odorata (L.) R. M. King & H. Rob. and 20 year-old secondary forest. Total aboveground biomass production of P. phaseoloides was 7.45 Mg ha−1, 4.2 times higher than F. macrophylla (1.78 Mg ha−1 ; P < 0.05). The high biomass of P. phaseoloides resulted in a significantly greater reduction in total weed biomass compared to Flemingia macrophylla in both wet and dry seasons. In the wet season (11 and 18 MAP), there were significant fallow system × land use and fallow system × village interactions for total weeds and broadleaf weeds. P. phaseoloides in bush (0.55 Mg ha−1), and P. phaseoloides at Ngoumou (0.09 Mg ha−1) had the lowest total weeds in the wet seasons. After the dry season, the lowest total weed mass was consistently recorded in P. phaseoloides while the highest was in the natural regrowth. The population of grasses was always higher in the F. macrophylla system than in P. phaseoloides system throughout the wet and dry seasons. Grass biomass in the P. phaseoloides-forest LUS was the least (0.01 Mg ha−1), 58 times lower than in F. macrophylla-bush (0.58 Mg ha−1). Biomass production of P. phaseoloides was highly significantly correlated with total weed biomass (r = −0.64; P = 0.004) while no relationship was found between biomass production of F. macrophylla and total weed biomass (r = −0.08, P = 0.747). It was concluded that P. phaseoloides was a suitable leguminous species for weed control. But for F. macrophylla, its low biomass production coupled with a compact plant architecture compromised it as an appropriate species for weed control in a planted fallow system.