Outdoor seating, a common feature in urban parks, cafes, and public spaces, may have unintended consequences on the soil microbiome beneath it. The presence of benches, tables, or heavy foot traffic can alter soil structure, reduce aeration, and limit moisture penetration, all of which directly impact microbial communities.

Studies suggest that compacted soil under seating areas often hosts fewer beneficial microbes, such as nitrogen-fixing bacteria and mycorrhizal fungi, due to restricted root growth and organic matter decomposition. Reduced microbial diversity can hinder nutrient cycling, making the soil less fertile over time. Additionally, shading from seating structures may lower soil temperatures, slowing microbial activity.

However, some research indicates that well-designed seating with permeable bases or periodic relocation can mitigate these effects. Urban planners and landscape architects are increasingly considering microbiome-friendly designs to preserve soil health in high-traffic areas. Understanding these dynamics is crucial for sustainable urban development and maintaining ecological balance in public spaces.