This 25 April 2020 video from the USA says about itself:
The Cleveland Museum of Natural History preserves and protects over 10,000 acres of native habitats in Northeast Ohio. One of the most important parcels of land in this collection is Mentor Marsh. The once-thriving wetland habitat was destroyed in the 1970s by industrial salt-mine tailings, which allowed the invasive reed grass Phragmites australis to take over.
After years of painstaking work, the Museum’s expert naturalists have begun to win the battle against Phragmites as native wildlife makes its comeback. Learn more about this conservation success from the Museum’s Restoration Ecologist, Dr. David Kriska.