Taken as in active use or as in the hands of private land owners? Not uniformly so, in either case. As someone else has mentioned, within the built environment

Taken as in active use or as in the hands of private land owners? Not uniformly so, in either case. As someone else has mentioned, within the built environment would be at the top end. As far as solar power plants go, geographically altered, old agricultural, and wildfire affected lands.