Does Scotland not have an equivalent of the Agricultural Land Classification scheme used in England and Wales, which brings a strong presumption against non-agricultural use for good to excellent (Grade 1-3a) land?

Or is the Carse, in fact, only moderate grade ("capable of producing moderate yields of a narrow range of crops or lower yields of a wider range of crops, or high yields of grass") or below?

I actually walked around 3 sides of the Cleve Hill site mentioned in the article a few weeks ago. The land there was also moderate grade - drained salt marsh, previously used for grass and grazing - and, if anything, the solar park helps form a protective barrier between the nature reserves towards the coast and the much more intrusive greenhouses and water treatment works further inland. It certainly didn't feel any less remote than the area did when I was last there a decade ago.