• Energy Research

Abstract Reduced tillage, permanent ground cover and crop diversification are the three core pillars of Conservation Agriculture (CA). We assess and compare on-farm effects of different practices related to the three pillars of CA on maize yields under ENSO-driven rainfall variability in Kenya and Malawi. Reduced tillage practices increased yields per hectare by 250 kg on average in Malawi under below-average rainfall conditions and by 700 kg in Kenya under above-average rainfall, but did not have any significant effect on yields under below-average rainfall conditions in Kenya. Ground cover had a positive impact on yields in Malawi (dry conditions) but not in Kenya (both dry and wet conditions), where mixed crop and livestock systems limited this practice. Crop diversification had positive impacts in Kenya (both dry and wet conditions), where maize-legume crop rotation is practiced, but not in Malawi where landholdings are too small to allow rotation. Our findings suggest that isolated CA techniques can have positive effects on yields even after only a few years of practice under variable rainfall conditions. This strengthens empirical evidence supporting the value of CA in resilience building of agricultural systems, and suggests that both full and partial adoption of CA practices should be supported in areas where climate change is leading to more variable rainfall conditions.

Agroecology has become an ideological foundation for social and environmental transformation in sub-Saharan Africa. In Senegal, agroecological advocacy coalitions, made up of farmers’ organizations, scientists, NGOs, and IOs, are using agroecology as an umbrella concept for proposing policy changes at multiple scales. We describe the history of the agroecological movement in Senegal in the context of the constitution of a national advocacy coalition. We then examine the “repertoires of collective action” mobilized by the coalition. Four repertoires are identified: technical support and knowledge co-production, territorial governance, alternative food networks, and national policy dialogue. Our analysis highlights the potential that these multi-level approaches have to sustainably transform the current food systems in sub-Saharan Africa. However, our research also reveals the limited agency of farmer organizations and the limitations of a movement that is strongly dependent on NGOs and international donors, leading to a “projectorate” situation in which contradictory policy actions can overlap. We further argue that, although the central government has formally welcomed some of the principles of agroecology into their policy discourse, financial and political interests in pursuing a Green Revolution and co-opting agroecology are pending. This leads to a lack of political and financial autonomy for grassroots farmers’ organizations, limiting the development of counter-hegemonic agroecology. We discuss the conditions under which territorial approaches, and the three other repertoires of collective action, can have significant potential to transform Sub-Saharan Africa in the coming years.

Equity has become a major concern in efforts to conserve nature. However, in the Global South, inequitable social impacts of conservation usually prevail. We investigate barriers to equitable governance of four protected areas through an innovative approach linking the tri-dimensional framing of environmental justice with the notion of telecoupling. We conceptualize the creation, support, and implementation of protected areas as telecoupling processes that involve flows, actors, and action situations, and assess them based on a set of indicators of procedural justice, distributive justice, and recognition. We perform the analysis for parallel or competing telecoupling processes that affect the areas and we then investigate the scope and reach of resistance actions to attain more equitable outcomes. Identified barriers include dependence of the PAs on transnational financial flows, presence of competing extractive demands, negative narratives on local practices, wilderness and Malthusian framings, authoritarian rule, narrow development options, and socio-cultural discrimination. These combined barriers create multiple forms of exclusion. Resistance actions are likely to succeed when actors can mobilize alliances and resources across distance. We conclude that justice framings can make power relationships in telecouplings more visible, and that considering distant interactions can elucidate causes of (in)equity in conservation.

In the last decade, sub-Saharan African countries have taken various measures to plan for and adapt to floods in order to reduce exposure and its impacts on human health, livelihoods, and infrastructure. Measuring the effects of such initiatives on social resilience is challenging as it requires to combine multiple variables and indicators that embrace thematic, spatial, and temporal dimensions inherent to the resilience thinking and concept. In this research, we apply a subjective resilience indicator framework and a before-after-control-intervention (BACI) evaluation to empirically measure the impacts of the “Live with Water” (LWW) project on suburban households in Dakar, Senegal. Our framework is based on an empirically measurable resilience index that combines anticipatory, adaptive, and absorptive capacity—considered as structural dimensions—with the concept of transformative capacity—considered as a temporal reconfiguration of the first three dimensions. Our finding let us estimate that the project increased the absorptive and the anticipatory capacities by 10.6% and 4.6%, respectively. However, adaptive capacity remained unchanged. This may be explained by the fact that the project was more successful in building drainage and physical infrastructures, rather than improving multi-level organizations and strategies to cope with existing flood events. Decoupling implementation time between physical infrastructures and longer term institutional and livelihood based support could both improve projects’ results and their evaluations.