What can be used as a technique to reduce soil compaction around trees on a construction site?

Spreading a temporary, thick layer of mulch is an effective technique to reduce soil compaction around trees on a construction site for several reasons. First, mulch serves as a protective barrier that absorbs and distributes the weight applied to the surrounding soil, minimizing direct pressure and preventing compaction. This layer not only helps to keep the soil loose but also retains moisture, promotes healthier root growth, and can enhance soil structure over time. Additionally, mulch can help suppress weeds that compete for resources with the tree, further supporting its health and stability during construction activities.

In contrast, installing drainage systems primarily addresses water management issues rather than directly preventing soil compaction. Utilizing heavy machinery is likely to exacerbate compaction due to the weight and pressure it applies to the soil. Planting shrubs around the base can create additional competition for resources and may not effectively address soil compaction itself. Therefore, adding a thick layer of mulch stands out as the best choice for protecting the soil around trees during construction.