Summary
This 2023 review examines soil nitrous oxide emissions from four contrasting land-use systems—agroforestry, row-crop agriculture, grassland, and forests—across North America. As suggested by the title and journal focus, the authors synthesise existing field data to characterise emission patterns and drivers, with potential implications for land-use selection and management to mitigate agricultural greenhouse gas contributions. The inclusion of agroforestry and forest comparators suggests the review may explore whether integrated tree-crop systems offer intermediate or reduced N₂O profiles relative to conventional agriculture.
Regional applicability
The study's focus on North American conditions (climate, soil types, agricultural practices) limits direct applicability to United Kingdom farming systems. However, the methodological framework for comparing N₂O emissions across land-use types is transferable, and findings on agroforestry and grassland emission profiles may inform UK policy discussions on land-use change and climate mitigation in agriculture, particularly given growing UK interest in agroforestry expansion.
Key measures
Soil nitrous oxide (N₂O) emission rates; potentially nitrous oxide flux (g N₂O-N m⁻² year⁻¹ or equivalent); land-use type and system comparison
Outcomes reported
This review synthesises data on soil N₂O emissions from agroforestry, row-crop, grassland and forest systems across North America. The study likely compares emission rates and identifies factors driving differences in greenhouse gas fluxes among these land-use types.
Topic tags
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