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Projections and impact assessment of the local climate change conditions of the Black Volta Basin of Ghana based on the Statistical DownScaling Model
The uncertainties and biases associated with Global Climate Models (GCMs) ascend from global to regional and local scales which delimits the applicability and suitability of GCMs in site-specific impact assessment research. The study downscaled two GCMs to evaluate effects of climate change (CC) in the Black Volta Basin (BVB) using Statistical DownScaling Model (SDSM) and 40-year ground station data. The study employed Taylor diagrams, dimensionless, dimensioned, and goodness of fit statistics to evaluate model performance. SDSM produced good performance in downscaling daily precipitation, maximum and minimum temperature in the basin. Future projections of precipitation by HadCM3 and CanESM2 indicated decreasing trend as revealed by the delta statistics and ITA plots. Both models projected near- to far-future increases in temperature and decreases in precipitation by 2.05-23.89, 5.41–46.35, and 5.84–35.33% in the near, mid, and far future respectively. Therefore, BVB is expected to become hotter and drier by 2100. As such, climate actions to combat detrimental effects on the BVB must be revamped since the basin hosts one of the largest hydropower dams in Ghana. The study is expected to support the integration of CC mitigation into local, national, and international policies, and support knowledge and capacity building to meet CC challenges.
Goal 13 Climate action / Goal 11 Sustainable Cities and Communities / Sustainable Development Goals / Policies / Temperature / Precipitation / River basins / Climate models / Trends / Impact assessment / Climate prediction / Climate change mitigation / Climate change adaptation
Record No:H052017

Assessment of Shared Socioeconomic Pathway (SSP) climate scenarios and its impacts on the Greater Accra Region
The effects of climate change (CC) have intensified in Ghana, especially in the Greater Accra region over the last two decades. CC assessment under the new IPCC scenarios and consistent local station data is limited. Consequently, CC assessment is becoming difficult in data-scarce regions in Ghana. This study utilizes six different Regional Climate Models under the 6th IPCC Report’s Shared Socioeconomic Pathway scenarios (SSPs) of the CMIP6, which were bias-corrected with CMhyd over Greater Accra using ground station and PUGMF reanalysis data. The study reveals a reduction and potential shift in the intensity of precipitation in the region under the SSPs. Maximum temperature is expected to increase by 0.81–1.45 C, 0.84–1.54 C, 0.96–1.70 C and 0.98–1.73 C, while minimum temperature would likely increase by 1.33–2.02 C, 1.49–2.22 C, 1.71–4.75 C and 1.75–4.83 C under SSP1–2.6, SSP2–4.5, SSP3–7.0, and SSP5–8.5 scenarios, respectively. Thus, temperature will likely increase, especially at night in the near future. Rising temperatures and changes in precipitation have impacts on all strata of society, from agricultural production to power generation and beyond. These findings can help inform Ghanaian policymaking on Sustainable Development Goals 11 and 13 as well as nationally determined contributions within the Paris Agreement.
Goal 13 Climate action / Goal 11 Sustainable Cities and Communities / Sustainable Development Goals / Policies / Temperature / Precipitation / Climate models / Trends / Climate prediction / Urban areas / Assessment / Socioeconomic impact / Climate change
Record No:H052016

How best to incorporate conjunctive water management into international water law: legal amendment, instrument coupling, or new protocol adoption?
International water conventions—e.g., the 1997 United Nations Convention on the Non-Navigational Uses of International Watercourses—include positive but insufficient focus on groundwater and its interaction with surface water. As such, a growing body of literature has proposed modifications to existing frameworks to enable consideration to surface and groundwater and their interactions. While this literature places considerable focus on coupling and amending existing legal frameworks, elaboration and evaluation of a new protocol on conjunctive water management comprises a key gap. To fill this gap, this paper seeks to answer the following question: does formulation and adoption of a new “conjunctive” protocol provide more value than existing proposals centered around modifications to existing law? This paper seeks to compare benefits associated with current proposals to strengthen the international legal framework for management of surface–groundwater interaction, vis-a-vis adoption of a new protocol on conjunctive management of transboundary freshwaters. To do so, the authors use doctrinal legal methods to analyze the existing main instruments globally assessing the degree to which they consider key interlinkages between surface water and groundwater. Then, the paper examines the concept of conjunctive water management and deduces tenets that should be pursued in shared waters to achieve this objective. To identify the preferred option to support conjunctive water management in international water law, the paper explores the degree to which existing proposals vs a new protocol enable an embrace of these tenets of conjunctive water management. The paper finds that while a new protocol may add greater value in advancing conjunctive water management, multiple options can and should be concurrently pursued. In particular, the authors argue that new protocols to the existing treaties must be adopted in combination with the amendment of the Draft Articles on the Law of Transboundary Aquifers. Benefits of doing so include more effective management of transboundary freshwater resources that are interconnected hydrologically, a less fragmented and more consistent international water regime, and ultimately more benefits accruing to the populations and environmental goods dependent on shared water resources.
Treaties / International agreements / Policies / Water resources / Aquifers / Groundwater / Surface water / Conventions / Watercourses / Legal frameworks / Transboundary waters / Water law / International law / International waters / Conjunctive use / Water management
Record No:H052015

Predicting optical water quality indicators from remote sensing using machine learning algorithms in tropical highlands of Ethiopia
Water quality degradation of freshwater bodies is a concern worldwide, particularly in Africa, where data are scarce and standard water quality monitoring is expensive. This study explored the use of remote sensing imagery and machine learning (ML) algorithms as an alternative to standard field measuring for monitoring water quality in large and remote areas constrained by logistics and finance. Six machine learning (ML) algorithms integrated with Landsat 8 imagery were evaluated for their accuracy in predicting three optically active water quality indicators observed monthly in the period from August 2016 to April 2022: turbidity (TUR), total dissolved solids (TDS) and Chlorophyll a (Chl-a). The six ML algorithms studied were the artificial neural network (ANN), support vector machine regression (SVM), random forest regression (RF), XGBoost regression (XGB), AdaBoost regression (AB), and gradient boosting regression (GB) algorithms. XGB performed best at predicting Chl-a, with an R2 of 0.78, Nash–Sutcliffe efficiency (NSE) of 0.78, mean absolute relative error (MARE) of 0.082 and root mean squared error (RMSE) of 9.79 g/L. RF performed best at predicting TDS (with an R2 of 0.79, NSE of 0.80, MARE of 0.082, and RMSE of 12.30 mg/L) and TUR (with an R2 of 0.80, NSE of 0.81, and MARE of 0.072 and RMSE of 7.82 NTU). The main challenges were data size, sampling frequency, and sampling resolution. To overcome the data limitation, we used a K-fold cross validation technique that could obtain the most out of the limited data to build a robust model. Furthermore, we also employed stratified sampling techniques to improve the ML modeling for turbidity. Thus, this study shows the possibility of monitoring water quality in large freshwater bodies with limited observed data using remote sensing integrated with ML algorithms, potentially enhancing decision making.
Lakes / Highlands / Monitoring / Satellite imagery / Landsat / Chlorophyll A / Turbidity / Total dissolved solids / Modelling / Neural networks / Algorithms / Machine learning / Remote sensing / Prediction / Indicators / Water quality
Record No:H051963

Evaluations of satellite/reanalysis rainfall and temperature products in the Bale Eco-Region (southern Ethiopia) to enhance the quality of input data for hydro-climate studies
The sparse distribution and lack of meteorological stations due to deficit infrastructure in developing countries is one of the limiting factors for hydro-climate studies, and dependency on globally available data is often prone to various level of errors. Thus, this study aimed to evaluate the performance of satellite/reanalysis rainfall and temperature products in the Bale Eco-Region (BER) in Southern Ethiopia. This study evaluated performances of three rainfall products such as the Climate Hazards Group Infrared Precipitation with Stations, version 2.0 (CHIRPS v2.0), Tropical Applications of Meteorology using SATellite and ground-based observations, version 3.1 (TAMSAT v3.1) and Multi-Source Weighted-Ensemble Precipitation, version 2.8 (MSWEP v2.8). The two temperature products evaluated in this study are ERA5 and Modern-Era Retrospective Analysis for Research and Applications, version 2 (MERRA v2). Evaluations of these satellite/reanalysis rainfall and temperature products were undertaken against observed data (1995–2014) in temperate, sub-tropical and tropical agro-ecological zones (AEZs) across multiple temporal scales ranging from the daily to annual. For assessing the performances of satellite/reanalysis rainfall and temperature products, a point-pixel evaluation approach was undertaken using five continuous evaluation scores such as correlation coefficient (R), mean absolute error (MAE), root mean square error (RMSE), percent bias (PBIAS) and Kling–Gupta efficiency (KGE). Categorical sores such as Probability of Detection (POD), False Alarm Ratio (FAR) and Frequency Bias Index (FBI) were also used for assessing the rainfall products. The findings revealed that MSWEP v2.8 has better performance than CHIRPS v2.0 and TAMSAT v3.1 in temperate and tropical AEZs at the daily, dry season and annual time steps as well as in sub-tropical AEZ in dry season and annual temporal periods, but MSWEP v2.8 displayed comparable performance with TAMSAT v3.1 in the daily time step. CHIRPS v2.0 exhibit superior performance in the monthly time scale in the three AEZs as well as in the wet season in temperate and tropical AEZs, but TAMSAT v3.1 has outperformed than CHIRPS v2.0 in the wet season in sub-tropical AEZ. The finding also indicated that the capability of MSWEP v2.8 to detect the rainy days (79–86%) and frequency of rainy days (0.99–1.79) is better than CHIRPS v2.0 and TAMSAT v3.1, but TAMSAT v3.1 has shown the best performance for identifying the non-rainy days (14–38%) than MSWEP v2.8 and CHIRPS v2.0. With regard to temperature, MERRA v2 outperformed over ERA5 in temperate and tropical AEZs for estimating both maximum and minimum temperatures from the daily to annual time scales, but ERA5 has shown superior performance than MERRA v2 in the sub-tropical AEZ. In view of the finding, we concluded that the best performing rainfall and temperature products for each AEZ can be used for data scarce regions such as the BER. The findings of this study provid
Estimation / Meteorological stations / Agroecological zones / Precipitation / Hydroclimate / Satellite observation / Evaluation / Models / Temperature / Rainfall
Record No:H051974

The place of social transformation in district-level development plans in northwest Ghana
Climate change / Cultural factors / Demography / Technology / Economic aspects / Political aspects / Policies / Social structure / Development plans / Transformation / Social change
Record No:H051973

Eight transformative missions for science-based action for future water security
Youth / Private sector / Multi-stakeholder processes / Sustainability / Climate resilience / Water availability / Partnerships / Water security
Record No:H051972

Africa Agriculture Transformation Scorecard: performance and lessons. Angola
The Malabo Declaration on accelerated agricultural growth and transformation for shared prosperity and improved livelihoods is a set of goals that were adopted by Heads of State and Government of the African Union in 2014 in Malabo, Equatorial Guinea (AUC 2014). To translate the seven Malabo commitments into results, a call for action was made by the Heads of State and Governments, by calling upon the AU Commission and the NEPAD Planning and Coordinating Agency, in collaboration with partners, to initiate a review process to be conducted on a biennial basis starting 2017, with an objective of tracking, measuring, and reporting progress towards achieving the Malabo Declaration commitments by 2025.
Three Biennial Reviews (BR) have been conducted—the inaugural BR in 2017, the second BR in 2019, and the third and most recent BR in 2021. This brief draws on the third BR report to summarize the performance of Angola toward meeting the Malabo Declaration commitments across the three BR cycles, highlights challenges and lessons from the third BR, and outlines policy and programmatic measures required for Angola to meet the Malabo Declaration commitment targets by 2025.
The third BR indicates that Angola is not on track to achieve any of the Malabo Declaration commitments by 2025. Despite the improvements in performance between the first and second BRs, the overall scores for Angola for all three BR rounds were below the benchmark scores.
A key recommendation from the analysis is for Angola to enhance public financial management to improve the quality of public agricultural expenditure and to promote planning of public investments in the agricultural sector, including donor-funded projects. This should be done in close partnership with key stakeholders in the agricultural sector, resulting in an increased allocation of public resources to the sector.
SADC countries / Resilience / Accountability / Poverty / Hunger / Investment / Finance / Policies / Indicators / Declarations / Agricultural development
Record No:H051964

Inclusive diets within planetary boundaries
Our food production system is unsustainable and threatening planetary boundaries. Yet, a quarter of the global population still lacks access to safe and nutritious food, while suboptimal diets account for 11 million adult deaths per year. This Voices asks: what critical barriers must be overcome to enable sustainable, healthy, accessible, and equitable diets for all?
Stakeholders / Economic aspects / Feeding preferences / Nutrition / Food production / Underutilized species / Food systems / Gender / Inclusion / Healthy diets
Record No:H051961

Africa Agriculture Transformation Scorecard: performance and lessons. Zambia
The Malabo Declaration on accelerated agricultural growth and transformation for shared prosperity and improved livelihoods is a set of goals that were adopted by Heads of State and Government of the African Union in 2014 in Malabo, Equatorial Guinea (AUC 2014). To translate the seven Malabo commitments into results, a call for action was made by the Heads of State and Governments, by calling upon the AU Commission and the NEPAD Planning and Coordinating Agency, in collaboration with partners, to initiate a review process to be conducted on a biennial basis starting 2017, with an objective of tracking, measuring, and reporting progress towards achieving the Malabo Declaration commitments by 2025.
Three Biennial Reviews (BR) have been conducted—the inaugural BR in 2017, the second BR in 2019, and the third and most recent BR in 2021. This brief draws on the third BR report to summarize the performance of Zambia in the third BR, in comparison with its performance in the previous BR cycles. The brief takes a look at challenges and lessons from the third BR, reviews policy, programmatic, and investment changes in Zambia resulting from the three BRs and concludes by highlighting the measures Zambia needs to take if it is to meet all seven Malabo commitments by 2025.
While the country showed signs of improvement in four of the seven commitment areas between the second and third BR cycles, it is not on track to achieve them by 2025.
A key recommendation from the analysis is for the government to increase resources to support known key drivers of agricultural growth—these include agricultural research and development, agricultural extension services, agricultural market information, irrigation for smallholder farmers, and feeder roads. All have great potential to stimulate agricultural growth.
SADC countries / Resilience / Accountability / Poverty / Hunger / Investment / Finance / Policies / Indicators / Declarations / Agricultural development
Record No:H051970

Africa Agriculture Transformation Scorecard: performance and lessons. Eswatini
The Malabo Declaration on accelerated agricultural growth and transformation for shared prosperity and improved livelihoods is a set of goals that were adopted by Heads of State and Government of the African Union in 2014 in Malabo, Equatorial Guinea (AUC 2014). To translate the seven Malabo commitments into results, a call for action was made by the Heads of State and Governments, by calling upon the AU Commission and the NEPAD Planning and Coordinating Agency, in collaboration with partners, to initiate a review process to be conducted on a biennial basis starting 2017, with an objective of tracking, measuring, and reporting progress towards achieving the Malabo Declaration commitments by 2025.
Three Biennial Reviews (BR) have been conducted—the inaugural BR in 2017, the second BR in 2019, and the third and most recent BR in 2021. This brief draws on the third BR report to summarize the performance of Eswatini in pursuit of the seven Malabo Declaration commitments. It also reviews policy, programmatic, and investment changes in Eswatini induced by the 2017, 2019, and 2021 BR cycles, highlighting policy actions and programmatic measures Eswatini must take to meet its Malabo Declaration commitments by 2025.
The third BR report shows that Eswatini is not on-track to achieve the Malabo commitments by 2025. This is a setback for the country because, in the first BR, the country’s overall score was above the minimum benchmark, indicating that the country then was on-track to achieve the Malabo targets.
A key recommendation from the analysis is for the government to accelerate the development of the second-generation instrument-based NAIP and the monitoring and evaluation system for the investment plan. The country needs to improve its performance on the overall CAADP process and implement CAADP-based policy and institutional support plans, as deficiencies in this support led to lower scores on this Malabo commitment.
SADC countries / Resilience / Accountability / Poverty / Hunger / Investment / Finance / Policies / Indicators / Declarations / Agricultural development
Record No:H051966
![Gender sensitivity of Ethiopia’s legislation on emigration: findings and recommendations. [Policy Brief of the Migration Governance and Agricultural and Rural Change (AGRUMIG) Project] (05/31/2023) Gender sensitivity of Ethiopia’s legislation on emigration: findings and recommendations. [Policy Brief of the Migration Governance and Agricultural and Rural Change (AGRUMIG) Project] (05/31/2023)](https://publications.iwmi.org/TN/H051962.jpg)
Gender sensitivity of Ethiopia’s legislation on emigration: findings and recommendations. [Policy Brief of the Migration Governance and Agricultural and Rural Change (AGRUMIG) Project]
Institutions / Rehabilitation / Policies / Women / Employment / Rural areas / Agriculture / Governance / Migrants / Gender equality / Legislation / Emigration
Record No:H051962

Impacts of small-scale irrigation on farmers’ livelihood: evidence from the drought prone areas of Upper Awash Sub-Basin, Ethiopia
Irrigation is an important mechanism to mitigate risks associated with the variability in rainfall for the smallholder subsistence farming system. This study analyzed how practicing small-scale irrigation (SSI) impacts the key livelihood assets on farm households’ human, physical, natural, financial, and social capitals in Ethiopia’s upper Awash sub-basin. The household-level survey data, collected from the 396 sample households, was used to carry out the current study. A Propensity Score Matching (PSM) analytical model was applied to match the SSI user and nonuser groups. The difference between the five capital assets of livelihood was estimated using the PSM’s Nearest Neighbor, Radius, Kernel Mahalanobis, and Stratification matching criteria. The results indicated that farmers’ participation in SSI has enhanced the capital assets of the farm households. Compared to the non-users, the irrigation users were better off in the number variety of food consumed (0.28 0.13 Standard Error [SE]), types of crops produced (0.60 0.17 SE), expenditures on land renting, and agricultural inputs (3118 877 SE) measured in Ethiopian Birr (ETB), as well as on-farm (9024 2267 SE ETB) and non-farm (3766 1466 SE ETB) incomes. Challenges such as the involvement of local brokers in the market value chain and the absence of farmers’ marketing cooperatives have reduced the benefit of irrigated agriculture. Hence, the expansion of SSI schemes for the non-user farmers should consider improving the water usage mechanism and productivity, establishing proper water allocation institutions between up and down streams and limiting the role of brokers in the irrigation product marketing chain be future policy directions.
Poverty / Socioeconomic aspects / Rainfall / Drought / Assets / Social capital / Natural capital / Human capital / Propensity score matching / Livelihoods / Farmer participation / Smallholders / Small-scale irrigation
Record No:H051960

Africa Agriculture Transformation Scorecard: performance and lessons. Comoros
The Malabo Declaration on accelerated agricultural growth and transformation for shared prosperity and improved livelihoods is a set of goals that were adopted by Heads of State and Government of the African Union in 2014 in Malabo, Equatorial Guinea (AUC 2014). To translate the seven Malabo commitments into results, a call for action was made by the Heads of State and Governments, by calling upon the AU Commission and the NEPAD Planning and Coordinating Agency, in collaboration with partners, to initiate a review process to be conducted on a biennial basis starting 2017, with an objective of tracking, measuring, and reporting progress towards achieving the Malabo Declaration commitments by 2025.
Three Biennial Reviews (BR) have been conducted—the inaugural BR in 2017, the second BR in 2019, and the third and most recent BR in 2021. This brief draws on the third BR report to summarize the performance of Comoros in pursuit of the seven Malabo Declaration commitments, assesses the challenges faced and the lessons learned by the country, and highlights policy actions and programmatic measures Comoros must take in order to meet its Malabo Declaration commitments by 2025.
Overall, the third BR report shows that Comoros is not on track to achieve the Malabo commitments by 2025. The country still has quite a long way to go regarding putting in place policies to attract its youth into agricultural value chains and increasing spending for agriculture research and development as a share of GDP. Comoros needs to implement many of the recommendations emanating from the third BR to ensure progress across all seven Malabo commitments so they can be met by 2025.
Another key recommendation from the analysis is for the country to increase total agricultural research spending as a share of agricultural GDP. Efforts to increase the adoption of improved technologies, both in the livestock and crops sectors, are needed for increased agricultural productivity and greater food availability to contribute to improved food security.
SADC countries / Resilience / Accountability / Poverty / Hunger / Investment / Finance / Policies / Indicators / Declarations / Agricultural development
Record No:H051965

Impact of climate smart agriculture on households’ resilience and vulnerability: an example from Central Rift Valley, Ethiopia
Climate change is causing serious challenges for smallholder farm households, especially in sub-Saharan Africa. The overarching objectives of this study are as follows: (i) to estimate household resilience and vulnerability indices, (ii) identify factors that explain these indices and (iii) to examine the impact of climate-smart agriculture (CSA) on households’ resilience and vulnerability, and (iv) to identify which CSA package performs better in enhancing resilience and reducing vulnerability. For this study, 278 farm households from 4 districts and 8 kebeles from the Central Rift Valley (CRV) of Ethiopia were randomly selected using a three-stage proportional to size sampling procedure. Cross-sectional data applying a structured and pretested survey questionnaire was collected for 2020/21 production season. Household resilience and vulnerability indices were estimated using resilience index and measurement analysis and indicators approaches, respectively. Multinomial endogenous switching regression was used to estimate the average treatment effects (ATEs) of the adoption of CSA practices on households’ resilience and vulnerability. The results show that livestock holding, land size, level of education, and state of food consumption are major explaining factors of resilience, whereas educational level of households, livestock holding, and access to credit are found to be major factors explaining vulnerability. The estimated ATEs indicate that households which adopted more diversified combinations of CSA packages were more resilient and less vulnerable than non-adopter households. The impacts of soil fertility management and conservation agriculture practices have better performance in improving resilience, whereas conservation agriculture and small-scale irrigation performed better in reducing the vulnerability of rural households in CRV. Boosting resilience and reducing vulnerability, hence, requires scaling up CSA among smallholder farmers by diversifying and raising farm households’ income, educational status, and livestock holding.
Food consumption / Livestock / Rural areas / Mitigation / Agricultural practices / Climate change / Farmers / Smallholders / Indicators / Vulnerability / Climate resilience / Households / Climate-smart agriculture
Record No:H051959

Africa Agriculture Transformation Scorecard: performance and lessons. Lesotho
The Malabo Declaration on accelerated agricultural growth and transformation for shared prosperity and improved livelihoods is a set of goals that were adopted by Heads of State and Government of the African Union in 2014 in Malabo, Equatorial Guinea (AUC 2014). To translate the seven Malabo commitments into results, a call for action was made by the Heads of State and Governments, by calling upon the AU Commission and the NEPAD Planning and Coordinating Agency, in collaboration with partners, to initiate a review process to be conducted on a biennial basis starting 2017, with an objective of tracking, measuring, and reporting progress towards achieving the Malabo Declaration commitments by 2025.
Three Biennial Reviews (BR) have been conducted—the inaugural BR in 2017, the second BR in 2019, and the third and most recent BR in 2021. This brief draws on the third BR report to summarize the performance of Lesotho in pursuit of the seven Malabo Declaration commitments. It assesses the challenges faced and the lessons learned by the country.
For the third BR, the benchmark score, the minimum score for a country to be considered on track to achieve the Malabo Declaration commitments by 2025, was 7.28 (AUC 2021). Lesotho achieved an overall performance score of 3.98 in the third BR. This score, which is far below the benchmark, indicates that the country is not on track to meet the Malabo commitments by 2025.
A key recommendation from the analysis is for the government to improve on the BR Process by putting in place inclusive institutionalized mechanisms for mutual accountability and peer review in the agricultural sector. The country should also improve its capacity for evidence-based planning, implementation, and monitoring and evaluation. To do so, Lesotho must increase funding to support increased data generation, management, analysis, and utilization in the agriculture sector.
SADC countries / Resilience / Accountability / Poverty / Hunger / Investment / Finance / Policies / Indicators / Declarations / Agricultural development
Record No:H051967

Africa Agriculture Transformation Scorecard: performance and lessons. South Africa
The Malabo Declaration on accelerated agricultural growth and transformation for shared prosperity and improved livelihoods is a set of goals that were adopted by Heads of State and Government of the African Union in 2014 in Malabo, Equatorial Guinea (AUC 2014). To translate the seven Malabo commitments into results, a call for action was made by the Heads of State and Governments, by calling upon the AU Commission and the NEPAD Planning and Coordinating Agency, in collaboration with partners, to initiate a review process to be conducted on a biennial basis starting 2017, with an objective of tracking, measuring, and reporting progress towards achieving the Malabo Declaration commitments by 2025.
Three Biennial Reviews (BR) have been conducted—the inaugural BR in 2017, the second BR in 2019, and the third and most recent BR in 2021. This brief draws on the third BR report to summarize the performance of South Africa in pursuit of the seven Malabo Declaration commitments and assesses the challenges faced and the lessons learned by the country.
South Africa is considered not on track to achieve the Malabo commitments by 2025. Moreover, the overall performance score for South Africa has been relatively stagnant, if not declining, across the successive BRs, with the lowest performance registered in the second BR.
A key recommendation from the analysis is for South Africa to improve on the overall CAADP process and the CAADP-based policy and institutional support system. The country fell short on most indicators relating to this commitment, including the CAADP process completion index; the existence and the quality of a multi-sector and multi-stakeholder coordination body; and having in place evidence-based policies, supportive institutions, and corresponding human resources required.
SADC countries / Resilience / Accountability / Poverty / Hunger / Investment / Finance / Policies / Indicators / Declarations / Agricultural development
Record No:H051969

Africa Agriculture Transformation Scorecard: performance and lessons. Madagascar
The Malabo Declaration on accelerated agricultural growth and transformation for shared prosperity and improved livelihoods is a set of goals that were adopted by Heads of State and Government of the African Union in 2014 in Malabo, Equatorial Guinea (AUC 2014). To translate the seven Malabo commitments into results, a call for action was made by the Heads of State and Governments, by calling upon the AU Commission and the NEPAD Planning and Coordinating Agency, in collaboration with partners, to initiate a review process to be conducted on a biennial basis starting 2017, with an objective of tracking, measuring, and reporting progress towards achieving the Malabo Declaration commitments by 2025.
Three Biennial Reviews (BR) have been conducted—the inaugural BR in 2017, the second BR in 2019, and the third and most recent BR in 2021. This brief draws on the report for the third BR to summarize the performance of Madagascar in pursuit of the seven Malabo commitments and assesses the challenges faced and the lessons learned by the country across the three BRs.
At the time of the third BR in 2021, Madagascar was not on-track to achieve any Malabo commitment by 2025. This represented a setback from the first and second BRs, which found Madagascar to be on track for achieving three and two commitments, respectively.
A key recommendation from the analysis is for the government to increase the proportion of rural women that are economically empowered and successful in agriculture. The country should promote initiatives that facilitate participation by women in gainful and attractive agribusiness opportunities.
SADC countries / Resilience / Accountability / Poverty / Hunger / Investment / Finance / Policies / Indicators / Declarations / Agricultural development
Record No:H051968

Operational and structural diagnosis of sewerage and drainage networks in Cte d’Ivoire, West Africa
In Cote d’Ivoire, the failure of urban sewage systems is a crucial problem for the drainage of wastewater and rainwater. This failure is due to many factors and therefore, calls for diagnostic studies. The present study aimed at analyzing these networks in order to identify the dierent factors that contribute to the operational and structural degradation in selected sewerage and drainage networks in Abidjan, Cote d’Ivoire. The method used in the study involved semi-structured interviews, video camera inspection and socio-environmental field surveys (geographical survey and household survey), followed by descriptive statistics. The results revealed that many structural, environmental and behavioral practice contribute to the progressive degradation of urban sewage systems. These factors are essentially those that prevent the normal flow of wastewater in the pipes such as the illegal dumping of solid waste, the unauthorized connection of wastewater networks, unsustainable urban agricultural practices, as well as the high concentration of vegetation on both sides of the network and the dilapidated infrastructure of the wastewater and rainwater networks. It was found that these factors are at the origin of the clogging and degradation of the sewers since 85% of the residents used these sewers as a dumping ground for solid waste.
Models / Vegetation / Rainwater / Sanitation / Environmental factors / Socioeconomic aspects / Anthropogenic factors / Urbanization / Infiltration / Waste disposal / Household wastes / Solid wastes / Wastewater / Waste management / Drainage systems / Sewerage
Record No:H051958

Addressing climate vulnerability in Nepal through resilient inclusive WASH systems (RES-WASH)
Infrastructure / Water supply / Local government / Communities / Capacity development / Risk / Policies / Social inclusion / Women / Gender equality / Extreme weather events / Vulnerability / Climate change / Water, sanitation and hygiene
Record No:H051909

A review of sewerage and drainage systems typologies with case study in Abidjan, Cte d'Ivoire: failures, policy and management techniques perspectives
The failure of sewage and drainage systems in SubSaharan African cities is frequent and can be considered as a critical issue, both from an environmental standpoint and in terms of associated maintenance costs. This study analyzes the state of the sanitation systems, the elements behind the failures, the environmental concepts used to classify the problems, and the tools and methodological alternatives for ranking the various management solutions. This research illustrates the causes that contribute to the dysfunctions in the sewage systems of Abidjan as a typical example of sewerage systems management challenges in SubSaharan Africa’s large cities. Poor solid waste and wastewater management practices by residents, e.g., illegal dumping of solid waste into the sewers, unauthorized and defective connections to the network, structural dysfunctions related to the age of the network (cracked, denuded, or broken), urban agriculture in the vicinity of the channels, natural phenomena such as erosion, landslides in the undeveloped parts, and the high concentration of vegetation in the network, wholly contribute to the degradation of the network. A variety of decision support systems for the management of the assets of the urban sewage network were presented. The instruments have been categorized based on their capacity and functionality. The operating concept of each of these tools has been outlined, as well as their respective data needs. In addition, the study analyzes challenges related to the usage of existing decision support systems and provides an outlook on future research requirements in this area. This study offers a detailed analysis of the issues of sanitation management and could serve as a reference for other emerging nations in SubSaharan Africa.
Case studies / Institutions / Models / Decision support systems / Sanitation / Wastewater / Solid wastes / Cities / Urban areas / Management techniques / Policies / Drainage systems / Sewerage
Record No:H051899

A spatio-temporal dataset on food flows for four West African cities
Gaining insight into the food sourcing practices of cities is important to understand their resilience to climate change, economic crisis, as well as pandemics affecting food supply and security. To fill existing knowledge gaps in this area food flow data were collected in four West African cities - Bamako (Mali), Bamenda (Cameroon), Ouagadougou (Burkina Faso), and Tamale (Ghana). The data cover, depending on the city, road, rail, boat, and air traffic. Surveys were conducted for one week on average during the peak harvest, lean, and rainy seasons, resulting in a dataset of over 100,000 entries for 46 unprocessed food commodities. The data collected includes information on the key types of transportation used, quantity, source, and destination of the food flows. The data were used to delineate urban foodsheds and to identify city-specific factors constraining rural-urban linkages. The data can also be employed to inform academic and policy discussions on urban food system sustainability, to validate other datasets, and to plan humanitarian aid and food security interventions.
Modes of transport / Virtual water / Food products / Food security / Datasets / Cities / Markets / Commodities / Food systems / Rural-urban food supply chains
Record No:H051896

Appraisal of complementarity of subsurface drip fertigation and conservation agriculture for physiological performance and water economy of maize
The Indo-Gangetic Plains (IGP) in north-west (NW) India are facing a severe decline in ground water due to prevalent rice-based cropping systems. To combat this issue, conservation agriculture (CA) with an alternative crop/s, such as maize, is being promoted. Recently, surface drip fertigation has also been evaluated as a viable option to address low-nutrient use efficiency and water scarcity problems for cereals. While the individual benefits of CA and sub-surface drip (SSD) irrigation on water economy are well-established, information regarding their combined effect in cereal-based systems is lacking. Therefore, we conducted a two-year field experiment in maize, under an ongoing CA-based maize-wheat system, to evaluate the complementarity of CA with SSD irrigation through two technological interventions–– CA+ (residue retained CA + SSD), PCA+ (partial CA without residue + SSD) – at different N rates (0, 120 and 150 kg N ha-1) in comparison to traditional furrow irrigated (FI) CA and conventional tillage (CT) at 120 kg N ha-1. Our results showed that CA+ had the highest grain yield (8.2 t ha-1), followed by PCA+ (8.1 t ha-1). The grain yield under CA+ at 150 kg N ha-1 was 27% and 30% higher than CA and CT, respectively. Even at the same N level (120 kg N ha-1), CA+ outperformed CA and CT by 16% and 18%, respectively. The physiological performance of maize also revealed that CA+ based plots with 120 kg N ha-1 had 12% and 3% higher photosynthesis rate at knee-high and silking, respectively compared to FI-CA and CT. Overall, compared to the FI-CA and CT, SSD-based CA+ and PCA+ saved 54% irrigation water and increased water productivity (WP) by more than twice. Similarly, a greater number of split N application through fertigation in PCA+ and CA+ increased agronomic nitrogen use efficiency (NUE) and recover efficiency by 8–19% and 14–25%, respectively. Net returns from PCA+ and CA+ at 150 kg N ha-1 were significantly higher by US$ 491 and 456, respectively than the FI-CA and CT treatments. Therefore, CA coupled with SSD provided tangible benefits in terms of yield, irrigation water saving, WP, NUE and profitability. Efforts should be directed towards increasing farmers’ awareness of the benefits of such promising technology for the cultivating food grains and commercial crops such as maize. Concurrently, government support and strict policies are required to enhance the system adaptability.
Technology / Economic analysis / Crop yield / Leaf area index / Residues / Tillage / Water-use efficiency / Irrigation methods / Irrigation water / Irrigation management / Photosynthesis / Maize / Water productivity / Nitrogen-use efficiency / Drip irrigation / Drip fertigation / Subsurface irrigation / Conservation agriculture
Record No:H051898

Determining the marketing margin for irrigation technologies in Ethiopia: a supply chain analysis. Adaptive Innovation Scaling - Pathways from Small-scale Irrigation to Sustainable Development
Households / Policies / Private sector / Non-governmental organizations / Government agencies / Multi-stakeholder processes / Climate variability / Drought / Agricultural productivity / Investment / Willingness to pay / Imports / Taxes / Costs / Credit / Financing / Market demand / Pumps / Solar powered irrigation systems / Farmer-led irrigation / Smallholders / Sustainable development / Innovation scaling / Supply chains / Marketing margins / Technology / Small-scale irrigation
Record No:H051897

Enhancing gender and youth inclusion in Ghana’s irrigated vegetable value chain. Adaptive Innovation Scaling - Pathways from Small-scale Irrigation to Sustainable Development
Financing / Project design / Agricultural development / Water user associations / Integrated water resources management / Collaboration / Learning / Intervention / Strategies / Regulations / Policies / Governmental organizations / Non-governmental organizations / Institutions / Multi-stakeholder processes / Employment / Women farmers / Farmer-led irrigation / Smallholders / Sustainable development / Small-scale irrigation / Innovation scaling / Agricultural value chains / Vegetable growing / Irrigated farming / Inclusion / Youth / Gender
Record No:H051895

Urban agriculture during economic crisis: lessons from Cuba, Sri Lanka and Ukraine. Policy brief
Economic crises take different forms and occur for various reasons, such as political conflicts and pandemics. What all these crises have in common is that they cause disruption to rural-urban food supply chains, resulting in food shortages for the urban poor, with the most direct impact being an increase in food prices. It is within this challenging context that we present empirical examples of the role of urban agriculture.
Pandemics / War / Conflicts / Resilience / Food security / Rural-urban food supply chains / Cities / Economic crises / Urban agriculture
Record No:H051894

Estimating the potential of spices for mineral provision in a refugee context in East Africa
Micronutrient deficiency remains an enormous problem in refugee settings. Transforming refugees’ food systems through the scaling up of kitchen gardening and fortifying relief food crops with minor food components including nutrient-dense spices can help improve the quality of staple foods. Globally, spices are indispensable in the daily diet and play an important role in the socio-cultural setting of different communities. Forty turmeric and curry powder samples were collected from different market establishments and geographic locations in East Africa. The samples were analyzed for selected elements using Portable X-Ray Fluorescence (PXRF). The contents of potassium (K), calcium (Ca), zinc (Zn) and strontium (Sr) in turmeric powder were statistically different among geographic origins (Ethiopia, Kenya and Uganda). We also aimed to determine if a small portion of spices (turmeric (5 g) and curry (4 g)) would contribute to an adequate intake (AI) or recommended dietary allowance (RDA) for selected minerals, for refugee men and women aged between 19 and 50 years as defined by the Food and Nutrition Board of the Institute of Medicine (IOM). For the reference groups, the contributions of turmeric and curry powder to AI/RDA for K, Ca and Zn varied between 0.48 to 4.13%. On the other hand, turmeric was identified to contribute gt; 20% AI/RDA for refugee men and women aged between 19 and 50 years for two micro minerals: manganese (Mn) and iron (Fe). Considering turmeric and curry powder of East African origins are good sources of minerals and present acceptable toxic metal(loid)s loads coupled with low cost, these spices particularly turmeric should be more widely popularized and recommended for food-to-spice fortification among the refugee population located in East Africa.
Turmeric / Minerals / Spices / Nutrition / Recommended dietary allowances / Refugees
Record No:H051893

Digital ethnography? Our experiences in the use of SenseMaker for understanding gendered climate vulnerabilities amongst marginalized agrarian communities
Digital innovations and interventions can potentially revolutionize agri-food systems, especially in coping with climate challenges. On a similar note, digital research tools and methods are increasingly popular for the efficient collection and analysis of real-time, large-scale data. It is claimed that these methods can also minimize subjective biases that are prevalent in traditional qualitative research. However, given the digital divide, especially affecting women and marginalized communities, these innovations could potentially introduce further disparities. To assess these contradictions, we piloted SenseMaker, a digital ethnography tool designed to capture individual, embodied experiences, biases, and perceptions to map vulnerabilities and resilience to climate impacts in the Gaya District in Bihar. Our research shows that this digital tool allows for a systematic co-design of the research framework, allows for the collection of large volumes of data in a relatively short time, and a co-analysis of the research data by the researchers and the researched. This process allowed us to map and capture the complexities of intersectional inequalities in relation to climate change vulnerability. However, we also noted that the application of the tool is influenced by the prior exposure to technology (digital devices) of both the enumerators and researched groups and requires significant resources when implemented in contexts where there is a need to translate the data from local dialects and languages to more dominant languages (English). Most importantly, perceptions, positionalities, and biases of researchers can significantly impact the design of the tool’s signification framework, reiterating the fact that researcher bias persists regardless of technological innovations in research methodology.
Social aspects / Technology / Transdisciplinary research / Agriculture / Women / Gender / Marginalization / Communities / Vulnerability / Climate change / Ethnography
Record No:H051885

Are farmers’ climate change adaptation strategies understated? Evidence from two communities in northern Ethiopian highlands
Research and policy analyses of climate change adaptation in Africa are often centre to examine adjustments in agricultural operations. This mainly bases on a misconception that rural households merely depend on agriculture for their livelihoods. This research aimed at positioning livelihood (farm and non-farm activities) as the centre of climate adaptation strategies to better understand rural households’ adaptation strategic options and capacities, using two rural communities in the Northern highlands of Ethiopia. The result showed that rural households have broader options both in farm and non-farm strategies for combating adverse climate condition than previously reported. A strong and positive association are found between wealth indicators such as farm size (0.08) and productive assets (0.0917) with farm-level adaptation strategies such as short maturing crop and irrigation. Non-farm adaptation strategies (such as business activities and wage employment) are, mainly, influenced by household demographic characteristics such as age of the household head (0.01) and adult household size (0.09). This indicates that there is no specific adaptation strategy panacea for rural households. Rather, rural households use a mix of strategies to meet the particular agro-ecological settings (for farm-level adaptation strategies), and infrastructure and the location of the community, which enable to access market and other services (for non-farm adaptation strategies). Thus, national level climate policies and strategies need to be tailored to address the specific agro-ecology, and infrastructure of the local area and the socio-economic context of the households in the two communities. In this regard, the different levels of government and nongovernmental organizations should provide more adaptation measures on agricultural extension services, access to loans, roads, transport, market, knowledge and creation of wage employment and business opportunities in the vicinity of rural communities and its surrounding towns.
Migration / Socioeconomic aspects / Rainfall / Irrigation / Soil conservation / Rural communities / Households / Livelihoods / Strategies / Farmers / Climate change adaptation
Record No:H051884

Occurrence and distribution of long-term variability in precipitation classes in the source region of the Yangtze River
Various precipitation-related studies have been conducted on the Yangtze River. However, the topography and atmospheric circulation regime of the Source Region of the Yangtze River (SRYZ) differ from other basin parts. Along with natural uniqueness, precipitation constitutes over 60% of the direct discharge in the SRYZ, which depicts the decisive role of precipitation and a necessary study on the verge of climate change. The study evaluates the event distribution of long-term variability in precipitation classes in the SRYZ. The precipitation was classified into three precipitation classes: light precipitation (0–5 mm, 5–10 mm), moderate precipitation (10–15 mm, 15–20 mm, 20–25 mm), and heavy precipitation (gt;25 mm). The year 1998 was detected as a changing year using the Pettitt test in the precipitation time series; therefore, the time series was divided into three scenarios: Scenario-R (1961–2016), the pre-change point (Scenario-I; 1961–1998), and the post-change point (Scenario-II; 1999–2016). Observed annual precipitation amounts in the SRYZ during Scenario-R and Scenario-I significantly increased by 13.63 mm/decade and 48.8 mm/decade, respectively. The same increasing trend was evident in seasonal periods. On a daily scale, light precipitation (0–5 mm) covered most of the days during the entire period, with rainy days accounting for 83.50%, 84.5%, and 81.30%. These rainy days received up to 40%, 41%, and 38% of the annual precipitation during Scenario-R, Scenario-I, and Scenario-II, respectively. Consequently, these key findings of the study will be helpful in basin-scale water resources management.
Vegetation / Dry spells / Hydrological factors / Time series analysis / Drought / Rainfall / Rivers / Trends / Precipitation / Climate change
Record No:H051888
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Population pressure and increasing water competition in a changing climate require us to take stock of the availability and use of water across scales. Water availability not only influences farmers’ commercial prospects but also irrigation-related enterprises and agri-businesses. Greater water scarcity could jeopardize irrigation and agricultural markets while excessive water use can lead to declining ecosystems, water quality and soil health. IWMI advises development partners and the public and private sectors on all aspects of water resource availability and use through a variety of advanced modeling and remote-sensing products and tools, including
The ability of farmers to engage in or expand irrigation depends on the prevailing socioeconomic, ecological and political contexts, which are often complex, non-linear and changeable. Overcoming systemic barriers to farmer-led irrigation development while taking advantage of existing opportunities
A lack of affordable credit, particularly for women and resource-poor farmers, is one of the main barriers to expanding farmer-led irrigation in low- and middle-income countries. But
Scaling farmer-led irrigation requires strengthening human capacity and knowledge exchange among all actors and stakeholders involved. IWMI takes an action research approach, working with national and international research institutions, governments, extension agents and public and private organizations to co-develop the scaling ecosystem and strengthen capacity to drive scaling networks and collective action. We support the