Summary
This controlled experimental study demonstrates that arbuscular mycorrhizal fungi enhance soil nutrient retention capacity under simulated climate-change rainfall scenarios in model grassland communities. The presence of AM fungi reduced phosphorus losses by 50% and nitrogen losses by 40% under high rainfall intensity, suggesting that soil biological communities can substantially mitigate nutrient leaching risks associated with increased precipitation. The findings highlight the ecosystem service value of mycorrhizal associations in climate adaptation, particularly for regions experiencing intensified rainfall patterns.
UK applicability
UK grasslands and arable soils with increased extreme precipitation events could benefit from management practices that preserve or enhance AM fungal communities; however, the study's controlled conditions may differ substantially from field conditions in temperate UK climates, requiring field validation before farm-scale recommendations can be made.
Key measures
Phosphorus leaching loss (%), nitrogen leaching loss (%), rainfall intensity (precipitation amount and frequency)
Outcomes reported
The study measured phosphorus and nitrogen leaching losses from model grassland communities under moderate and high rainfall intensity scenarios, with and without arbuscular mycorrhizal fungi present. Key findings included 50% reduction in phosphorus losses and 40% reduction in nitrogen losses under high rainfall intensity when AM fungi were present.
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