I see this as irrigation, as well. I think I've mentioned it on one of the forum threads some time ago. Irrigation in those days (before electric pumps) was based on gravity, the water towers were high, so it would make sense for some of it to look like it was flowing downhill. Not saying this is specifically what it is, but it would not be out of place to look at it that way.
They did have water wheels (this is why I sometimes wonder if the in-between rota might be fountains or water wheels). The grain mills had water wheels, but water wheels were also extensively used in the hotter regions for irrigation, and were often operated by yoked animals walking around the well in endless circles.
We're pretty much in agreement on how we interpret the general parts of this circle. I think it's a garden, an aerial view, I think there are rows of plants, also an X-shaped garden (maybe herbs, maybe decorative), and irrigation. There are others who feel differently.
They did have water wheels (this is why I sometimes wonder if the in-between rota might be fountains or water wheels). The grain mills had water wheels, but water wheels were also extensively used in the hotter regions for irrigation, and were often operated by yoked animals walking around the well in endless circles.
We're pretty much in agreement on how we interpret the general parts of this circle. I think it's a garden, an aerial view, I think there are rows of plants, also an X-shaped garden (maybe herbs, maybe decorative), and irrigation. There are others who feel differently.