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vram22 on Jan 10, 2018 | parent | context | favorite | on: Britain's Next Megaproject: A Coast-To-Coast Fores...

Don't know actual chemistry facts (rusty) but would not be surprised if it was the ash that did.

FreeFull on Jan 10, 2018 [–]

Ash is alkaline, so it would make the ground more basic rather than more acidic.

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