Transforming the typical Australian farm dam into an ecological 'wonderland'
(www.abc.net.au)https://www.abc.net.au/news/2021-05-02/sustainable-dam-project-yields-amazing-result/100095698To revive a dam, Dr Scheele says, livestock access must be restricted to reduce the amount of animal waste washed into the water.
That allows vegetation to establish itself on the surrounding walls and filter out material as it gets washed in.