Logging and fires can affect the health of black spruce forests. In areas where fires are rare, logging can lead to a build-up of organic material on the forest floor, reducing tree growth. Different logging methods and prescribed burning can impact soil thickness and tree height. High-severity fires and prescribed burning can result in taller trees with better nutrition, while low-severity fires and careful logging have different effects on ground cover. Thicker organic layers in the soil can hinder tree growth, with a threshold of around 23 cm. Overall, the study found that high-severity fires and prescribed burning can help maintain forest productivity in paludified black spruce stands.