Título
Agroecology can promote climate change adaptation outcomes without compromising yield in smallholder systems
Autor
Sieglinde Snapp
Yodit Kebede
Eva Wollenberg
Nivel de Acceso
Acceso Abierto
Materias
CIENCIAS AGROPECUARIAS Y BIOTECNOLOGÍA - (CTI) CLIMATE CHANGE - (AGROVOC) CROPS - (AGROVOC) FOOD SUPPLY - (AGROVOC) GAS EMISSIONS - (AGROVOC) GREENHOUSE GASES - (AGROVOC) FARMING SYSTEMS - (AGROVOC) AGROECOLOGY - (AGROVOC) FOOD SECURITY - (AGROVOC) LESS FAVOURED AREAS - (AGROVOC) SMALLHOLDERS - (AGROVOC) YIELDS - (AGROVOC) NUTRIENTS - (AGROVOC) BIOLOGICAL PEST CONTROL - (AGROVOC) CARBON SEQUESTRATION - (AGROVOC) LEGUMES - (AGROVOC)
Resumen o descripción
A critical question is whether agroecology can promote climate change mitigation and adaptation outcomes without compromising food security. We assessed the outcomes of smallholder agricultural systems and practices in low- and middle-income countries (LMICs) against 35 mitigation, adaptation, and yield indicators by reviewing 50 articles with 77 cases of agroecological treatments relative to a baseline of conventional practices. Crop yields were higher for 63% of cases reporting yields. Crop diversity, income diversity, net income, reduced income variability, nutrient regulation, and reduced pest infestation, indicators of adaptative capacity, were associated with 70% or more of cases. Limited information on climate change mitigation, such as greenhouse gas emissions and carbon sequestration impacts, was available. Overall, the evidence indicates that use of organic nutrient sources, diversifying systems with legumes and integrated pest management lead to climate change adaptation in multiple contexts. Landscape mosaics, biological control (e.g., enhancement of beneficial organisms) and field sanitation measures do not yet have sufficient evidence based on this review. Widespread adoption of agroecological practices and system transformations shows promise to contribute to climate change services and food security in LMICs. Gaps in adaptation and mitigation strategies and areas for policy and research interventions are finally discussed.
Fecha de publicación
2023
Tipo de publicación
Artículo
Recurso de información
Formato
application/pdf
Idioma
Inglés
Audiencia
Investigadores
Repositorio Orígen
Repositorio Institucional de Publicaciones Multimedia del CIMMYT
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