Land Equivalent Ratio (LER)

Key term for OCR GCSE Geography B, used in Global Food Security.

Definition

A metric used to compare the crop yield of polyculture systems to the yield of traditional industrial monocultures.

Exam Context

Land Equivalent Ratio (LER) appears in OCR GCSE Geography B revision content for Resource Reliance, especially Global Food Security and Sustainability of Food Strategies.

Resource Reliance Global Food Security Sustainability of Food Strategies

Found in Revision Notes

Resource Reliance

Small-Scale and 'Bottom-Up' Food Strategies

Global Food Security • Sustainability of Food Strategies

Revise note

Related Key Terms

Appropriate technology Biosecurity Bottom-up approach Closed-loop systems

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