There's a lot of scrub been allowed to develop, and that simply needs cutting. Time for a scrub cutting committee to be formed.

The rich ecology is because the soil is so impoverished. Traditionally, farmers grazed sheep on hills by day and brought them down to the lowlands at night, where their dung enriched the soil. Leaving them all the time will tend to over-enrich the soil and destroy the ecological balance. (Unless there's very few, in which case they won't keep the grass down).

Sounds like an experimental solution, adopted too late. Now where has that been adopted before?