where environmental conditions and the species pool are maintained by natural processes.

They can also be described as the following:
* "Semi-natural grasslands are one of the world's most biodiverse habitats on a small spatial scales."
* "Semi-natural grasslands belong to the most species rich ecosystems in the world."
* "...have been formed over the course of centuries through extensive grazing and mowing."
* "...without the use of pesticides or fertilisers in modern times."

There are many different types

1.Previous
3.Next