Balsam fir trees in New Brunswick are exhibiting a concerning phenomenon of turning red and perishing following last year’s exceptional drought, sparking worries about the fate of this provincial tree. Prof. Anthony Taylor, a forestry researcher at the University of New Brunswick, has been observing this distressing trend firsthand, noting that these vibrant evergreen trees, often sought after for Christmas decorations, are gradually wilting and succumbing to the adverse effects of the drought.
Taylor, who has been delving into the impact of climate change on New Brunswick’s forests for an extended period, revealed that similar instances of balsam fir die-offs were witnessed after unusually hot and dry summers in 1986 and 2018. He explained that under warm and dry conditions like those of the previous year’s drought, balsam firs struggle to thrive and grow optimally.
The researcher elucidated that during drought conditions, the trees halt the photosynthesis process prematurely, impeding their growth and hindering the production of essential energy reserves needed for vital metabolic functions and defense mechanisms. Consequently, this places the trees at a disadvantage, making them more susceptible to external stressors like pests or diseases, thereby escalating the risk of mortality.
Balsam firs, characterized by shallow root systems, encounter difficulty in accessing sufficient water during dry periods, exacerbating their vulnerability. Peter McKeil, a woodlot owner, noticed signs of damage to balsam firs on his property in June, observing the trees gradually turning red from the lower branches upwards. He estimates a loss of approximately 100 trees thus far and has adjusted his harvesting practices to salvage value from the remaining firs before further losses occur.
McKeil expressed concerns about the future of the species in the face of worsening climate change, particularly in southern New Brunswick, emphasizing the need for adaptation or potential migration of the trees to more suitable environments. Taylor emphasized the importance of taking proactive climate action, underscoring the visible impact of a changing climate on New Brunswick’s iconic balsam fir trees as a poignant reminder of the urgent need to transition away from fossil fuels and promote sustainable forest management practices.