Look at this Bund-project in Dodoma, Tanzania. The harvesting could be done in different scales depending on local needs. Could be simpler, without concrete, just use what is appropriate at the sites. https://edition.cnn.com/2022/07/18/world/bunds-geoengineering-restoration-climate-scn-spc-intl/index.html
Perhaps this topic could be an independent article about "Bunding"?
Perhaps also evolve one topic on the restoration of peatlands, since those could be large source of methane emissions from dried up, unmanaged peatlands?
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