Land equivalent ratio¶
The land equivalent ratio is a concept in agriculture that describes the relative land area required under sole cropping (monoculture) to produce the same yield as under intercropping (polyculture).
Core Idea¶
Land equivalent ratio is treated here as the recurring agroecology identity summarized by this source-grounded definition: The land equivalent ratio is a concept in agriculture that describes the relative land area required under sole cropping (monoculture) to produce the same yield as under intercropping (polyculture). The land equivalent ratio is a concept in agriculture that describes the relative land area required under sole cropping (monoculture) to produce the same yield as under intercropping (polyculture). For a scenario where a total of \textstyle m crops are intercropped, the land equivalent ratio LER can be calculated as.
Scope of Application¶
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Applications. The land equivalent ratio can be used whenever more than one type of yield can be obtained from the same area.
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Definition. For a scenario where a total of \textstyle m crops are intercropped, the land equivalent ratio LER can be calculated as.
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Example calculation. The table in this section provides yield values for a hypothetical scenario intercropping a grain crop with a fruit tree crop.
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Example calculation. The first two columns state the yields for intercropping (IY) and sole yields (SY).
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Example calculation. The third column, equivalent area, column calculates the area of sole cropping land required to achieve the same yield as 1 ha of intercropping, at the same management level.
Clarity¶
A clear use of Land equivalent ratio names the carrier, the operative relation, and the conditions under which the source treats the identity as present. The minimal definition is The land equivalent ratio is a concept in agriculture that describes the relative land area required under sole cropping (monoculture) to produce the same yield as under intercropping (polyculture).
Manages Complexity¶
Land equivalent ratio compresses multiple agroecology details into a stable diagnostic relation. The source shows both the central mechanism—the table in this section provides yield values for a hypothetical scenario intercropping a grain crop with a fruit tree crop.—and the practical consequence—an interpretation of this result would be that a total of 1.4 ha of sole cropping area would be required to produce the same yields.
Abstract Reasoning¶
- Type the carrier. Identify the agroecology entities to which the claim applies.
- State the relation. Use the source-grounded identity: The land equivalent ratio is a concept in agriculture that describes the relative land area required under sole cropping (monoculture) to produce the same yield as under intercropping (polyculture).
- Check operation and conditions. The first two columns state the yields for intercropping (IY) and sole yields (SY).
- Demand recognition evidence.
Knowledge Transfer¶
Within the home domain. Knowledge about Land equivalent ratio transfers literally when a new case preserves the same carrier type, relation, and recognition test. The land equivalent ratio can be used whenever more than one type of yield can be obtained from the same area. For a scenario where a total of \textstyle m crops are intercropped, the land equivalent ratio LER can be calculated as. Beyond the home domain. No canonical parent is asserted for Land equivalent ratio.
Relationships to Other Abstractions¶
Current abstraction Land equivalent ratio Domain-specific
Parents (1) — more general patterns this builds on
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Land equivalent ratio is a kind of Ratio Prime
Land-equivalent ratio compares monoculture land required with intercropped land for equal yield.
Hierarchy path (1) — routes to 1 parentless root
- Land equivalent ratio → Ratio → Comparison → Self Checking
Neighborhood in Abstraction Space¶
Land equivalent ratio sits in a sparse region of the domain-specific corpus (84th percentile for distinctiveness): few abstractions share its structure, so a faithful description tends to retrieve it precisely.
Family — Unclustered & Miscellaneous (2551 abstractions)
Nearest neighbors
- Storm Water Management Model — 0.82
- Shields formula — 0.81
- Monoculture — 0.81
- Optimum sustainable yield — 0.81
- Ecological Yield — 0.81
Computed from structural-signature embeddings · 2026-10-08