A $14.5 million fundraising campaign
The city of Montréal will invest at least one dollar in the Pathway for every dollar raised by the Foundation, to cover the estimated $14.5 million cost. To date the Foundation has raised over $1.2 million, thanks to contributions by Echo Foundation, RBC and the Québec Mining Association, making it possible to develop the Filtering Marshes station, and donations by the Claudine and Stephen Bronfman Family Foundation and the J. Armand Bombardier Foundation, which will go to promoting the educational aspects of the project.
Filtering marshes (Aquatic Garden)
The roots of the aquatic plants along with the bacteria and microorganisms present in the Aquatic Garden’s two filtering marshes will serve to purify the water feeding the plant collection basins in a closed circuit. Monitoring: comparative measure of the two marshes’ filtering efficiency.
Decontamination (Research zones)
A zone for research into phytoremediation for decontamination purposes will be created and comprise an invaluable source of information and concrete applications for managing the contaminated soil in place and the soil coming from the excavation for the Biodôme’s quarantine building, built in 2017 in the Louis-Dupire greenhouse area. Monitoring: follow-up on contaminant levels in the soil (copper, zinc, lead, PAHs, MAHs, C10-C50 hydrocarbons) and in plants; comparison of the effectiveness of the different species; tracking of variations in microbial biodiversity.
Controlling invasive plants (Frédéric Back Tree Pavilion)
Rehabilitation of the Frédéric Back Tree Pavilion pond will make it possible to treat the current issue of unwanted plants, while illustrating the various rehabilitation techniques for controlling them. Significant measures will be taken towards offering inspiring viewpoints over this wetland. Monitoring: follow-up on the dynamics of plant populations and on their biodiversity.
Cold islands (Main parking lot)
The entranceway to the Jardin, the parking lot at this time is an immense asphalt surface. The creation of water filtration and retention zones will allow for better rainwater management. This new layout will reduce the heat-island effect, and water runoff will be diverted to rain gardens. Monitoring: comparative follow-up on precipitation and runoff levels; temperature comparisons.
Living plant wall (Exhibition garden)
Installation of a living plant wall will make for a vertical ecosystem that purifies the air, increases humidity levels, serves as a sound barrier, and provides shelter for birds and insects. With its varied colors and contours it will beautifully brighten up the landscape of an exhibition garden and lend the setting an unusual touch of verticality. Monitoring: measure of the decibel levels; resistance of the various plants after a winter.
Stabilizing banks (The big ponds)
Phytotechnologies will be used to stabilize the banks and limit the spread of invasive plants in the pond area. The components will adhere to an architectural concept that makes visitor access to the water easier while demonstrating the efficiency of plant stabilization techniques. No monitoring anticipated.
Green roof and filtering marshes (Youth Gardens)
The new sanitary building to be added close to the Youth Gardens will be covered with a green roof, and its wastewater may be purified by filtering marshes according to existing requirements. The station will become just the right place for learning phytotechnologies from an early age. Monitoring: establishment of plant growth on the roof; follow-up on the quality of water at the entrance and at the exit depending on the extent of building use.