It was such a pleasure to discover a constructed wetland in the heart of Calgary, Canada. I’ll be honest, I didn’t know it was even there until I finally walked to the far side of Prince’s Island Park the other day. I used to work beside the entrance to Prince’s Island Park so I am amazed that I never knew about the wetland. Obviously, if you are close to the river at all in Calgary, you will notice the large population of Canada Geese and various duck species but you would never guess that there is a wetland tucked into the park. The wetland was created to treat storm water before it enters the Bow River, but it also acts as a new habitat for lots of species and increases the biodiversity of the area.
This amazing work has been carried out by the Alberta Conservation Association. By artificially damming water and planting carefully selected plants like Wood’s Rose, Balsam Poplar and Slender Wheatgrass, they have developed a very impressive constructed wetland.
After the initial construction, it is up to nature to take over and that is definitely what has happened here. Whilst walking around the wetland area, you are surrounded by waterfowl, mostly Canada Goose, Mallard and the American Widgeon and the trees that line the pathway are filled with birds. I was treated to a sighting of my first North American Water Vole which was swimming between the banks of the wetland.
Wetlands are an extremely important and useful ecosystem that we need to preserve and learn more about. I love that the pathway takes you all around the wetland banks on Prince’s Island and is filled with information signage to help teach people more about the importance of the flora and fauna of this special habitat. Constructed wetlands are a concept that other large cities should be thinking about; they increase biodiversity, improve water quality and can act as a buffer zone against floods, storms and other extreme weather events, especially along coastlines.