Just having chickens on it is going to 'ruin' it.
Even free ranging is going to ruin parts of your land.
x3 (or 4?) Deep litter (or aart's version of it) provides good drainage* that's better for their feet (and your boots) and helps protect the soil that's underneath. And wood chips sure smell better than poop on bare muddy ground.
* (This is assuming there's no drainage issues in the run.)

Necks stretched out, eyes so big ... They just stood there, frozen. I was in a panic cause the neighbor's dogs came to the fence, tried shushing them back in but that just freaked them out. Dogs started barking & jumping at the fence ... I got their plastic treat container, shook it and they came running in their house. 