We had a farmer around here who seems to have learned. He somehow figured out that hedgerows help break the wind and are home to beneficial birds and other animals, even if also probably harboring not so beneficial ones such as rabbits ;)
He subdivided his fields by "planting" hedgerows again but he did it on the cheap. He threw a bunch of old branches/cutoffs around his fields and just left it there for a few years. Over time, birds and other animals probably that used the branches for shelter would drop seeds and over time an actual hedge grew all by itself. FWIW he also built a little pond in the middle of some fields, simply by digging out a hole and piling up the dug out soil around it on 3 1/2 sides.