Countries on the edge of the Sahara desert are reversing desertification by just digging half circles.
The ground in these places is too compact for water to soak in during wet season which leads to flooding but digging these holes gives the water a place to stop and soak in. And they’re pushing back the desert with this. By just digging holes.
via what-even-is-thiss
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François @Prague
Als Antwort auf earthling • • •earthling
Als Antwort auf François @Prague • • •@FrancoisPrague
No terraforming is necessary in Sahara, just accessing the water underneath.
en.wikipedia.org/wiki/Nubian_S…
#Sahara
#water
aquifer
Contributors to Wikimedia projects (Wikimedia Foundation, Inc.)Juan Per¢ent🍉🏞️🌊
Als Antwort auf earthling • • •Torsten mag das.
Petra van Cronenburg
Als Antwort auf Juan Per¢ent🍉🏞️🌊 • • •@dacig I think the same. Groundwater is one of the most important treasures for our future - and we see a lot of new desertification where people take too much of it, in countries that never had deserts.
@appassionato @FrancoisPrague
Torsten mag das.
Juan Per¢ent🍉🏞️🌊
Als Antwort auf Petra van Cronenburg • • •Pozos Profundos, deep wells, seem like a good idea at first, making agriculture possible where the sun is plentiful, but they will dry up rather quickly.
Extractivism is not the way forward. Shepherding resources is.
Torsten mag das.
Léo Ducas 🇺🇦 ∀,≡,⊂
Als Antwort auf earthling • • •earthling
Als Antwort auf Léo Ducas 🇺🇦 ∀,≡,⊂ • • •@ducasleo
I don't think so.
en.wikipedia.org/wiki/Great_Gr…
African global initiative against desertification in Africa
Contributors to Wikimedia projects (Wikimedia Foundation, Inc.)Torsten mag das.
Léo Ducas 🇺🇦 ∀,≡,⊂
Als Antwort auf earthling • • •The only difference I spot is that the Sahel is not part of it any more, just Kenya, Tanzania and Senegal. The half moon technique I have already seen in various films on the Great Green Wall.
Don't get me wrong, I'm not making any critique of the new project, just trying to understand its relation to the one I already knew about. The absence of Sahel in particular is regrettable but quite understandable:
standrewseconomist.com/2025/01…
Progress or Empty Promises: The Realities of Africa's Great Green Wall - The St Andrews Economist
Matthew Candau - Africa Section Editor (The St Andrews Economist)Torsten mag das.
Petra van Cronenburg
Als Antwort auf Léo Ducas 🇺🇦 ∀,≡,⊂ • • •A good article - thank you!
@appassionato
Torsten mag das.
levampyre
Als Antwort auf Léo Ducas 🇺🇦 ∀,≡,⊂ • • •@ducasleo I also thought it was part of it. The half moon digging being the method used for the Great Green Wall Project and everybody kinda joining into this one big effort with smaller task forces.
We've tried this technique in Brandenburg, Germany at #ArschDerHeide on our very poor dry sandy soils. Even there you can see its impact. It is not just the water soaking in. It is also the small wind break and shade that helps young plants to sprout & establish in the semi circles.
@appassionato
Dieu
Als Antwort auf earthling • • •earthling
Als Antwort auf earthling • • •The name is semi-circular bund.
See:
en.wikipedia.org/wiki/Semicirc…
#water
#bund
#Ethiopia
rainwater harvesting technique
Contributors to Wikimedia projects (Wikimedia Foundation, Inc.)Strypey
Als Antwort auf earthling • • •> Countries on the edge of the Sahara desert are reversing desertification by just digging half circles
I half-remember some doco I saw through permaculture networks, in which a similar technique was used in the US to rehabilitate land that was part of the Dust Bowl.