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This study aims to explore landscape-scale variations in denitrification rates and the soil properties influencing these patterns.

Landscape‐Scale Variations in Denitrification

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This study aims to explore landscape-scale variations in denitrification rates and the soil properties influencing these patterns.
Established a 110 by 110 m sampling grid in an irrigated field in southern Saskatchewan.
Correlated various soil properties, including denitrification rate and moisture content, with landform elements.
Identified landscape-scale patterns of denitrification activity based on soil properties.
Denitrification rates were lowest in shoulder elements and highest in level-concave elements.
Hot spots of denitrification activity were predominantly associated with level-concave elements.
Volumetric water content had the highest correlation with denitrification in level landform elements (r_s = 0.448**).

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Randomized trial examines denitrification rates in agricultural soil, suggesting topography plays a key role.

Pennock et al. (1992) studied this question.

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