This is an indigenous knowledge learn post.
It's about farming on hills. I remember a trip to Scotland a few years back and how I was flabbergasted by the tilt of some of the farmland. They were mostly used for grazing sheep. But what about growing food on steep hills?
Run-off threatens to wash away planted goods. Rain seems like a disadvantage for hill-farms. But like a lot of innovation, constraint = opportunity. Many places around the world have their own indigenous knowledge of what to do about the rain. In BURKINA FASO they use stone walls at the upper side of farmland to change the
dangerous run-off into a slow trickle of helpful watering. This indigenous practice disappeared for a while during a period of political instability, but was revived by some in the 1970s. The International Fund for Agricultural Development later helped spread that revival throughout Burkina Faso's central plateau area, where yields have subsequently increased by 40%.
In other places such as MEGHALAYA hills are employed for bamboo drip irrigation; gravity takes water reserves (natural or otherwise) from the top of the hill down through bamboo pipes to water plants lower down:
I'm sure there are hill farms out there that could be improved by the replication of this indigenous knowledge.