posted 11 years ago
I was thinking one could put in some deep mulch hogs or chickens (or both?) to begin - you'd already pay for the animals, straw/hay, and feed, and the meat would pay off those costs. Fencing may be a problem, tho, unless you have a jackhammer to sink posts into solid rock. Home could be an old trailer with solar panels and some sort of rainwater catching cistern. Or seasonally a tipi or yurt. Of course, it would be pretty easy to find stones to build with... Maybe stone walls would be the way to fence in paddocks. Once the pigs reach market size you've got all that organic matter they've left behind to mix with the dust and a fair start on the bacteria, etc. that soil needs so that's the beginnings of humus - maybe enough to grow vegetables the following year. Aquaponics, again catching rainwater could be another option. They say plants will grow on the bare dust if you add fertilizer, but since there's no humus or real life left in the dust left behind the growth is short-lived; providing "fertilizer" in the form of fish or animal poo would provide the basis for soil life - bacteria, fungi, etc.
As for the polluted waste water left behind, I think Paul Stamets has done some pretty good work using fungi to clean nasty water. It can make it inert so it sinks and eventually is buried under the new life that comes up around it. Humic acid, like from rotting leaves, also binds toxic metals, so I think over time as more and more life come to grow the toxic areas would become less so. Even reeds can clean water somewhat.
Several permaculture people have said that humus doesn't come from soil, it comes from air as the plants grab carbon out of the air and make it into the carbon in their tissues, when they die it is added to the soil and is humus. So you can make dirt/good soil out of almost thin air. Mark Shepard, in "Restoration Agriculture" says there was an experiment where they weighed the soil, planted a tree, and years later weighed the tree and the soil left in the pot. The tree had gained many pounds while the soil had lost only a little.
In desert restoration lack of water is the key factor that limits plant growth and once some trees are established by irrigation or watering the soil returns and life returns. In Appalachia water is no problem, they average 3-5 inches a month, every month. I wonder just how long it would take if you did everything right, to get it fertile and lush again.