Here in the Tamar Valley, there is a lot of land which until recently was more or less economically valueless. It was ex-mining land, covered in hazel, beech and oak plus in some places the leftovers of old orchards, or small conifer plantations that someone thought might make a few bob once upon a time. The fields are steep and small, and some of them are probably contaminated as well: access is poor and there are areas of woodland that exist pretty much because it wasn't worth anyone's time to keep the land cleared.
Now the wood is worth the effort, people have started to cut the hedges (today I saw overgrown oaks in a hedge cleared that must have been fifty years old at least) and clear the coppices. It will be interesting to see if this change persists and results in a move to more traditionally coppiced woodland, or if the land is cleared once then put to some other purpose.