Tag: agriculture
Value chain development in Nicaragua: Prevailing approaches and tools and persistent gaps
This chapter draws on four contrasting cases of value chain development (VCD) in Nicaragua to assess approaches and tools used in design and implementation. We interviewed 28 representatives from the international NGOs leading the interventions, the local NGOs that participated in implementation, principal buyers, and cooperatives. Despite the complexity of market systems, results showed a relatively basic approach to VCD, reflected in: 1) reliance on a single tool for design and implementation; 2) expected outcomes based on technical assistance and training for smallholders and cooperatives; 3) local NGOs and cooperatives with key roles in implementation; and 4) limited engagement with other chain actors, service providers, and researchers. We conclude with a call for a broader approach to VCD, based on a combination of tools to account for multiple, context-specific needs of diverse stakeholders, deeper collaboration between key actors within and outside the value chain, and evidence-based reflection and learning.
The Climate-Smart Village approach: putting communities at the heart of restoration
Land degradation affects 24% of the world’s land surface and 1.5 billion of its people. It is the result of human activities, exacerbated by natural processes, and is closely linked to climate change and loss of biodiversity. In Africa two-thirds of arable land is degraded. In Senegal, 2.5 million hectares are degraded (CSE 2011); the central “groundnut basin” is particularly affected. Increasing the capacity of smallholders to address land degradation and adapt to climate variation is paramount, which is why the Senegalese Institute for Agricultural Research (ISRA) and its partners adopted the holistic and participatory “climate-smart village” approach. Based on innovative local governance, this approach includes seven components: (1) climate forecasts and information; (2) resilient crop varieties and good agricultural practices; (3) agroforestry with fruit and fodder species; (4) farmer managed natural regeneration; (5) inter-village silvopastoral areas; (6) planting of native fruit trees; and (7) small forestry and farm businesses.
Agroecological principles and elements and their implications for transitioning to sustainable food systems. A review
There is consensus that the global food system is not delivering good nutrition for all and is causing environmental degradation and loss of biodiversity, such that a profound transformation is needed to meet the challenges of persistent malnutrition and rural poverty, aggravated by the growing consequences of climate change. Agroecological approaches have gained prominence in scientific, agricultural and political discourse in recent years, suggesting pathways to transform agricultural and food systems that address these issues. Here we present an extensive literature review of concepts, definitions and principles of agroecology, and their historical evolution, considering the three manifestations of agroecology as a science, a set of practices and a social movement; and relate them to the recent dialogue establishing a set of ten iconic elements of agroecology that have emerged from a global multi-stakeholder consultation and synthesis process. Based on this, a consolidated list of principles is developed and discussed in the context of presenting transition pathways to more sustainable food systems. The major outcomes of this paper are as follows. (1) Definition of 13 consolidated agroecological principles: recycling; input reduction; soil health; animal health; biodiversity; synergy; economic diversification; co-creation of knowledge; social values and diets; fairness; connectivity; land and natural resource governance; participation. (2) Confirmation that these principles are well aligned and complementary to the 10 elements of agroecology developed by FAO but articulate requirements of soil and animal health more explicitly and distinguish between biodiversity and economic diversification. (3) Clarification that application of these generic principles can generate diverse pathways for incremental and transformational change towards more sustainable farming and food systems. (4) Identification of four key entry points associated with the elements: diversity; circular and solidarity economy; co-creation and sharing of knowledge; and, responsible governance to enable plausible pathways of transformative change towards sustainable agriculture and food systems. © 2020, The Author(s).
Nurturing Soil Life through Agroforestry: The Roles of Trees in the Ecological Intensification of Agriculture
Soil resources constitute the very foundation of agriculture, so sustainable agriculture is inherently dependent on soil health. Soil health reflects the capacity of soil to respond beneficially to agricultural management, maintaining both agricultural production and the provision of varying ecosystem services, nutrient cycling, and biodiversity conservation in the long term. Soil health depends on the physical, chemical, and biological conditions of the soil that are required for plant growth and development. Ecological intensification differs from current strategies for agricultural intensification by embracing agroecological transitions to more sustainable agriculture and food systems. This chapter discusses the pivotal role that trees play in building and maintaining the soil health and functional resilience that are required for the ecological intensification of agriculture. It summarizes the current knowledge about functions and impacts of trees on soil health, and highlights the tree/soil biodiversity interactions that drive these functions.
Levers for Alleviating Poverty in Forests and Tree-Based Systems
An extensive set of policies, programmes, technologies and strategies have been implemented in the forest sector. Collectively, these ‘levers’ cover a diverse range of approaches, at a variety of scales and are governed by many different stakeholders. It is important for decision-makers to understand which levers might be most useful in achieving poverty alleviation. This chapter seeks to answer the question: which forest management policies, programmes, technologies and strategies have been effective at alleviating poverty? We studied 21 different rights-based, regulatory, market and supply chain, and forest and tree management levers for which we could identify a plausible theory of change of how implementation of that lever might alleviate poverty. For every lever we: define and describe the lever; describe the logic or theory of change by which the lever might plausibly be expected to alleviate poverty; summarise the available evidence showing how the lever has alleviated poverty; and discuss the variables that explain heterogeneity in outcomes. Overall, we found substantial, varied and context-dependent evidence of these levers being associated with mitigating poverty (i.e., by improving well-being). We found limited evidence of these levers being associated with reducing poverty (i.e., moving people out of poverty). Some of the strongest evidence for poverty reduction came from ecotourism, community forest management, agroforestry and, to a lesser extent, payments for ecosystem services (PES). A multitude of cases showing positive outcomes for poverty mitigation came from community forest management, forest producer organisations, small and medium forest enterprises, PES, and tree crop contract production. A combination of more rigorous and long-term research designs, along with examinations of the cost-effectiveness of different levers, would go a long way to contributing to the design of effective interventions for poverty alleviation.
Germplasm Acquisition and Distribution by CGIAR Genebanks
The international collections of plant genetic resources for food and agriculture (PGRFA) hosted by 11 CGIAR Centers are important components of the United Nations Food and Agriculture Organization’s global system of conservation and use of PGRFA. They also play an important supportive role in realizing Target 2.5 of the Sustainable Development Goals. This paper analyzes CGIAR genebanks’ trends in acquiring and distributing PGRFA over the last 35 years, with a particular focus on the last decade. The paper highlights a number of factors influencing the Centers’ acquisition of new PGRFA to include in the international collections, including increased capacity to analyze gaps in those collections and precisely target new collecting missions, availability of financial resources, and the state of international and national access and benefit-sharing laws and phytosanitary regulations. Factors contributing to Centers’ distributions of PGRFA included the extent of accession-level information, users’ capacity to identify the materials they want, and policies. The genebanks’ rates of both acquisition and distribution increased over the last decade. The paper ends on a cautionary note concerning the potential of unresolved tensions regarding access and benefit sharing and digital genomic sequence information to undermine international cooperation to conserve and use PGRFA.
Tropical Montane Forest Conversion Is a Critical Driver for Sediment Supply in East African Catchments
Land use change is known to affect suspended sediment fluxes in headwater catchments. There is however limited empirical evidence of the magnitude of these effects for montane catchments in East Africa. We collected a unique 4-year high-frequency data set and assessed seasonal sediment variation, water pathways, and sediment response to hydrology in three catchments under contrasting land use in the Mau Forest Complex, Kenya’s largest tropical montane forest. Annual suspended sediment yield was significantly higher in a smallholder agriculture-dominated catchment (131.5 ± 90.6 t km−2 yr−1) than in a tea-tree plantation catchment (42.0 ± 21.0 t km−2 yr−1) and a natural forest catchment (21.5 ± 11.1 t km−2 yr−1) (p < 0.05). Transfer function models showed that in the natural forest and the tea-tree plantations subsurface flow pathways delivered water to the stream, while in the smallholder agriculture shallow subsurface and surface runoff were dominant. There was a delayed sediment response to rainfall for the smallholder agriculture and the tea-tree plantations. A slow depletion in sediment supply suggests that the wider catchment area supplies sediment, especially in the catchment dominated by smallholder farming. In contrast, a fast sediment response and depletion in sediment supply in the natural forest suggests a dominance of temporarily stored and nearby sediment sources. This study shows that the vegetation cover of a forest ecosystem is very effective in conserving soil, whereas catchments with more bare soil and poor soil conservation practices generated six times more suspended sediment yield. Catchment connectivity through unpaved tracks is thought to be the main explanation for the difference in sediment yield.
The Ontologies Community of Practice: A CGIAR Initiative for Big Data in Agrifood Systems
Heterogeneous and multidisciplinary data generated by research on sustainable global agriculture and agrifood systems requires quality data labeling or annotation in order to be interoperable. As recommended by the FAIR principles, data, labels, and metadata must use controlled vocabularies and ontologies that are popular in the knowledge domain and commonly used by the community. Despite the existence of robust ontologies in the Life Sciences, there is currently no comprehensive full set of ontologies recommended for data annotation across agricultural research disciplines. In this paper, we discuss the added value of the Ontologies Community of Practice (CoP) of the CGIAR Platform for Big Data in Agriculture for harnessing relevant expertise in ontology development and identifying innovative solutions that support quality data annotation. The Ontologies CoP stimulates knowledge sharing among stakeholders, such as researchers, data managers, domain experts, experts in ontology design, and platform development teams. Digital technology use in agriculture and agrifood systems research accelerates the production of multidisciplinary data, which spans genetics, environment, agroecology, biology, and socio-economics. Quality labeling of data secures its online findability, reusability, interoperability, and reliable interpretation, through controlled vocabularies organized into meaningful and computer-readable knowledge domains called ontologies. There is currently no full set of recommended ontologies for agricultural research, so data scientists, data managers, and database developers struggle to find validated terminology. The Ontologies Community of Practice of the CGIAR Platform for Big Data in Agriculture harnesses international expertise in knowledge representation and ontology development to produce missing ontologies, identifies best practices, and guides data labeling by teams managing multidisciplinary information platforms to release the FAIR data underpinning the evidence of research impact. The deployment of digital technology in Agriculture and Food Science accelerates the production of large quantities of multidisciplinary data. The Ontologies Community of Practice (CoP) of the CGIAR Platform for Big Data in Agriculture harnesses the international ontology expertise that can guide teams managing multidisciplinary agricultural information platforms to increase the data interoperability and reusability. The CoP develops and promotes ontologies to support quality data labeling across domains, e.g., Agronomy Ontology, Crop Ontology, Environment Ontology, Plant Ontology, and Socio-Economic Ontology.
Colliding paradigms and trade-offs: Agri-food systems and value chain interventions
Managing trade-offs for ‘do no harm’ outcomes is central to achieving the Sustainable Development Goals (SDGs) and requires an understanding of impact processes within agri-food systems. However, agricultural programming continues to rely on single point interventions framed by earlier development paradigms at odds with the systemic change goals of the SDGs. The implications of these colliding paradigms are explored using an agri-food systems lens to highlight trade-offs in interventions for pro-poor value chains, nutrition-sensitive value chains and greening of value chains. Analysis reveals problematic assumptions and limited supporting evidence and points to conflicting logics and targets that require societal negotiations about goals and priorities. Steps are outlined to embed a ‘do no harm’ principle in intervention design and evaluation.