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ominous_anonymous t1_iy9nki7 wrote

If you look up "water bunds" it is a very similar concept!

https://www.dutchwatersector.com/news/bunds-are-doing-their-job-regreening-kenya-and-reducing-flooding

>Bunds are pits in the ground in the shape of a crescent moon

https://www.cnn.com/2022/07/18/world/gallery/bunds-land-restoration-tanzania-northern-ireland-climate-scn-spc-intl

>Bunds are simple structures that have been used for thousands of years to keep a liquid in or out. In Kuku, southern Kenya, they have been used as a water management strategy to revive and regreen degraded land.

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