Agricultural land in large parts of the US is going through a massive degradation cycle. We are heading for dustbowl 2.0 especially now that a bunch of the weird land universities have been shut down. In short its being used wrong and left empty too long, meaning the top soil is blowing away. Not to mention the land drains stopping proper soaking leading to flash flooding and runoff events.

Depending on how the panels are put in place, the land and soil quality will increase significantly because its reverting to fallow and long rooted stabilising plants will have 25 years to build up the biome again. Converting land back to farming is pretty quick.

I understand the point your making, and I do agree with the end of life cycle issues. THere is going to be a lot of lead leaching into water courses if not dealt with properly.