Out here on the left coast, deer pee seems to kill anything that is green or tries to grow.
A couple of years ago, we finally got permission to put a deer fence around our back yard to keep them from eating our roses, tomatoes, and other plants.
The first year our yard guy and I had to spray to weed killer on the ground around the outside perimeter of our deer fence.
The deer hang around that area coveting our plants protected by our fence, they can’t get to. So they pee and defecate several feet outside of the fence and around it.
Nothing is growing there. So any fire hazard due to plant growth outside the fence has been eliminated.
“...we finally got permission to put a deer fence around our back yard...”
You should move to America where we can put a fence around our yard if we want to or need to. No permission asked for or needed.