Cocoa Agroforestry in a Warming World: A Critical Synthesis of Shade Design, Carbon, Biodiversity, Yield and Climate Resilience

Summary

This critical narrative review synthesises evidence from 2000–2026 on cocoa agroforestry design and its capacity to deliver simultaneous adaptation, carbon, biodiversity and livelihood benefits in warming and variable climates. The authors argue that agroforestry cannot be prescribed as a universal shade percentage; rather, shade-tree selection must account for species-specific functional traits, canopy architecture, rooting patterns and phenology to balance microclimate benefits against crop competition, water stress and disease pressure. Aboveground carbon gains are well supported, but soil carbon responses are inconsistent, biodiversity benefits depend on landscape context, and yield alone is an inadequate measure of farm performance.

Regional applicability

Cocoa is not grown commercially in the United Kingdom; however, the review's framework for evaluating agroforestry trade-offs, shade design principles and measurement validity may inform UK policy on tropical commodity supply-chain resilience, import sourcing standards, or the application of agroforestry principles to indigenous UK tree crops and temperate mixed farming. The findings are most directly applicable to cocoa-producing regions in West Africa, Central America and Asia-Pacific.

Key measures

Shade canopy characteristics (crown height, leaf phenology, canopy closure percentage); microclimate regulation (temperature, humidity); cocoa yield; aboveground and soil carbon; biodiversity metrics; water competition; pest and disease occurrence; economic farm performance

Outcomes reported

The review evaluates how shade-tree species identity, functional traits, canopy architecture, density and spatial arrangement mediate trade-offs between microclimate regulation, yield, pest and disease dynamics, carbon storage, and biodiversity in cocoa agroforestry. It synthesises evidence on whether agroforestry can simultaneously deliver climate adaptation, carbon sequestration, biodiversity benefits and farmer livelihoods.

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