Topography, management, and extreme precipitation influence greenhouse gas emissions in a cool, humid corn silage system.

Key Points

• The study aims to explore how topography, management practices, and extreme precipitation patterns affect greenhouse gas emissions in corn silage systems.
• Analyzed the effects of inundation duration on GHG emissions, focusing on saturation periods over 40 days, and examined treatment and topography influences.
• Measured soil moisture, nitrogen availability, and organic matter inputs as indirect factors affecting emissions.
• GHG emissions increased significantly after more than 40 days of continuous saturation.
• Topography and treatment were found to explain less than 5% of emissions, primarily acting indirectly through soil conditions.