Nova Scotia’s dry summer is causing trees in the province to face worsening conditions, according to experts. The lack of rain in the forecast is a significant concern for the trees, especially newly planted or naturally regenerated ones that are more susceptible to drought due to their small size and fragile state. The Canadian Drought Monitor reported that the entire province has been experiencing drought conditions since late July, with minimal rainfall since then.
In Halifax, urban forestry manager Crispin Wood noted that recently planted trees are struggling, with some already shedding leaves prematurely. While he doesn’t anticipate a high mortality rate among trees, he expects a less vibrant autumn as trees conserve resources by reducing the production of pigments that create colorful fall foliage.
The dry conditions have also raised worries about tree stability. Scott Holman, urban forestry supervisor in Truro, highlighted that many trees are struggling with drought, leading to shriveled roots and decreased stability. With the Atlantic hurricane season peaking in late August and September, there is a heightened risk of storms in Atlantic Canada during late summer and early fall, making tree health crucial to prevent uprooting during severe weather.
In response to the drought, Truro has implemented measures to support tree health, such as using watering bags to provide a slow release of water to the root systems. Planting resilient tree species that can withstand adverse conditions is seen as a long-term management strategy. Wood emphasized the importance of selecting drought-tolerant tree species for planting, considering the ongoing impact of climate change on tree resilience.
Peter Duinker, founder of the Halifax Tree Project, stressed the necessity for further research to understand how trees will be affected by climate change in the long term, including the resilience of their roots during extreme weather events. Adapting tree selection and planting practices to address changing climate conditions is essential to ensure the health and stability of trees in both urban and rural environments.
