- Use heavy plastic tarps to cover areas where materials like concrete or sheetrock are being worked with.
- Never clean paintbrushes or tools over tree roots, and always dispose of chemical wastes properly.
An ecosystem is a naturally occurring community of plants, animals, and microorganisms working together within a particular environment. In southern Wisconsin, this collaboration of life has evolved over thousands of years to form distinct native plant communities, such as prairies, woodlands, wetlands, and aquatic ecosystems. Each community is supported by a delicate balance of interdependent species, each with its unique requirements. The introduction of invasive species and pests poses significant challenges to these ecosystems, and we are prepared to help manage and restore balance in these habitats through a combination of knowledge, skill, and care.
Soil Compaction
Soil compaction is a major concern in construction projects, especially during concrete installation. The compaction of soil limits the movement of air and water to tree roots, slowly suffocating the trees over time. The effects are often not immediately visible, but they can manifest years later in the form of stunted growth or decline. To protect tree roots from compaction, we recommend using barriers to keep machinery away from the root zones—specifically within the tree’s dripline. Orange construction fences are a simple and effective way to designate protected areas and prevent unnecessary damage.
Raising the Existing Grade
When altering the grade around an established tree, it’s crucial to take steps to prevent harm before making any changes. While it might be more costly to take preventative measures, doing so is far less expensive and far more effective than trying to correct issues after the fact. The best course of action involves removing all vegetation beneath the tree’s canopy, including underbrush and grass, and carefully loosening the top few inches of soil. This will improve the bond between the existing soil and the new fill, promoting healthy root growth. Fertilizing the area will also provide nutrients to support the tree’s recovery.
To further protect the tree, construct a circular barrier of open-joint materials, such as brick or stone, around the trunk. This “tree well” should maintain a gap of at least two feet between the trunk and the wall, and the wall should extend to the height of the new grade. This creates a space that allows the tree to breathe and access the air and water it needs.
Additionally, an aeration system using perforated PVC pipe can be installed in a radial pattern around the tree. This system allows for moisture drainage while ensuring that the tree’s root system stays well-oxygenated. Covering the pipes with gravel helps promote drainage and prevent clogging, while a layer of woven plastic or another porous material will keep soil from filtering into the system. When filling the tree well, use high-quality topsoil, and consider adding coarse gravel to discourage rodents from entering the system.
The tree well can be left open, or it can be covered with decorative mulch or gravel, providing both aesthetic appeal and functionality for tree health.
Severing Roots
Though some root disturbance may be unavoidable, careful planning can minimize damage to important tree roots. When routing underground utilities, avoid straight lines that might cut through the root systems of significant trees. If this isn’t feasible, tunneling beneath the roots is a gentler alternative that reduces the potential for harm. Instead of digging deep trenches for foundation work, consider using posts or pillars, which minimize disruption to the soil and roots below.
Prairie Restoration
In Wisconsin, less than 10,000 acres of the original 2.1 million acres of native prairie remain. These prairies are incredibly diverse and important for biodiversity, ecosystem health, and local wildlife. Their restoration is an essential ecological effort, and we are here to assist with soil preparation, seeding, and the ongoing care needed to restore these landscapes.
Invasive species like Buckthorn, Honeysuckle, Multiflora Rose, and Garlic Mustard threaten the delicate balance of these ecosystems. We employ a variety of methods to control and manage these invasive plants, carefully considering the best approach for each individual project’s scope and budget.
Other Problems
Construction activities that alter the land’s natural drainage can lead to long-term challenges for tree health. If excess water begins pooling in wooded areas, trees can suffer from a lack of oxygen, eventually leading to decline. Conversely, changes in water flow may leave some areas too dry, stressing the trees and making them more susceptible to disease. It may be necessary to incorporate drainage systems or irrigation to ensure that existing trees continue to thrive.
Another concern is the damage caused by construction equipment, which can inadvertently break limbs or damage trunks. Always be vigilant in repairing any injuries promptly. Additionally, construction materials, chemicals, and waste—like paints, oils, and solvents—can alter the pH and chemistry of the surrounding soil, potentially harming the tree’s roots. To mitigate these risks:
Through careful planning and ongoing maintenance, we can help preserve the health of the trees and landscapes we cherish.