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by samatman
1412 days ago
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'Literally nothing' is of course hyperbole, but I'd like to point out that there are remediations short of removing and landfilling the topsoil available. Much as crops can be planted to enrich the soil with nitrogen, arsenic hyperaccumulators can pull arsenic out of the soil: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5513893/ As I understand it, strategies for lead involve binding it into a mineral form with very low water solubility, such that plants won't accumulate it in the first place, it's not hard to find permaculture folks who will talk your ear off all day about this stuff. |
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Permaculture people will talk your ear off all day about this stuff, but almost none of them have any clue on the actual application of said concepts beyond backyard urban gardens.
Farm scale permaculture is mostly a fantasy, almost nobody is doing it, except maybe Mark Shepard but in his case the actual profitable business on his farm is an organic market gardening operation and the 'regenerative agriculture', keyline design, permaculture stuff is frankly a side show.
It's one thing to lay down piles of sheet mulch and make nice "food forests" in your urban reclaimed vacant lot or whatever. It's another to do anything similar to that across many many acres. Too much of what they talk about is hand labour focused and not automation friendly.
Also a lot just doesn't work. Like, doesn't produce a crop. Just sounds nice. A whole sub-culture full of opinionated dudes (almost always) regurgitating a lot of pop philosophy and "natural wisdom" without a lot of effective science to show.