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Agroecology can promote climate change adaptation outcomes without compromising yield in smallholder systems

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Title Agroecology can promote climate change adaptation outcomes without compromising yield in smallholder systems
 
Creator Dittmer, Kyle M.
Rose, Sabrina
Snapp, Sieglinde S.
Kebede, Yodit
Brickman, Sarah
Shelton, Sadie
Egler, Cecelia
Stier, Milena
Wollenberg, Eva
 
Subject agroecology
climate change mitigation
climate change adaptation
yields
smallholders
agriculture
farm income
nutrient management
pest management
food security
pollution
ecology
 
Description 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.
 
Date 2023-08
2023-04-13T08:50:51Z
2023-04-13T08:50:51Z
 
Type Journal Article
 
Identifier Dittmer, K.M.; Rose, S.; Snapp, S.S.; Kebede, Y.; Brickman, S.; Shelton, S.; Egler, C.; Stier, M.; Wollenberg, E. (2023) Agroecology can promote climate change adaptation outcomes without compromising yield in smallholder systems. Environmental Management, Online first paper (01 April 2023). ISSN: 0364-152X
0364-152X
https://hdl.handle.net/10568/129982
https://doi.org/10.1007/s00267-023-01816-x
 
Language en
 
Rights CC-BY-4.0
Open Access
 
Format application/pdf
 
Publisher Springer Science and Business Media LLC
 
Source Environmental Management