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Protecting Trees during ConstructionWith the onset of spring many homeowners begin landscape or home improvement projects. This often raises concerns for existing trees and shrubs in or near the construction site. While the physical dimensions of your new project may seem to allow for retention of trees, various construction-related activities can produce harmful effects that you may not have taken into account.
Cedar Lawn Tree Service, Inc. has certified arborists available to inspect your landscape and make recommendations before you begin construction. Would you like to make an online request for information or service?
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Most of the more serious damage to trees occurs below the soil surface. Injurious activities include the general compaction of soils, stripping of topsoils, severing of roots during excavation, changes in surface storm water flow that affect soil moisture levels, alterations in soil chemistry and toxicity due to material spills, and loading soils with piles of construction material and/or the addition of fill to permanently change grade.
The consequences of such activities may result in a period of poor growth and even decline in the years following completion of the construction. Regrading around trees, by adding or removing soils over the root zone, will often damage roots and lead to tree decline. Stripping soils, even a few inches, can remove important superficial roots and rob the root zone of organic matter. Adding or compacting soils reduces oxygen levels and respiration and leads to root decline. As roots decline the tree’s capacity to absorb water and nutrients is severely compromised and can eventually result in tree mortality. The ability of a tree to withstand these conditions depends upon factors such as the age and health of the tree, the degree of injury, presence of other stress-producing events (drought, insect or disease problems) and post-injury care.
A consultation with a certified arborist before starting your construction project can assess the damage and recovery potential of your trees and shrubs and help you plan protective measures. Remedial techniques are available to alleviate many problems. These may include vertical mulching, fertilization and/or mycorrhizal applications, and structural pruning. In some cases, however, replacement may be a more feasible option. An arborist can help you weigh the factors and make that decision.