The approach is called holistic management. Basically, you make sure cows stay in one place until they've grazed (or trampled, doesn't matter) the tall grasses

The approach is called holistic management. Basically, you make sure cows stay in one place until they've grazed (or trampled, doesn't matter) the tall grasses away. Then you move the cows to another place and let nature do its job. On average, the places where tall grasses were converted to natural fertilizer, do much better vs. ungrazed places. It's all about the thickness of the humus layer and the presence of the accompanying microorganisms. He received a lot of criticism, but the evidence shows it's working. https://www.theguardian.com/sustainable-business/2014/aug/19/grazing-livestock-climate-change-george-monbiot-allan-savory https://www.theguardian.com/sustainable-business/2014/aug/19... The places where it's not working are usually overgrazed or missing other elements that prevent erosion. The problem of desertification can be solved everywhere, though it's not always easy. You need to: - prevent wind erosion by adding the right grasses - prevent wind erosion by creating terraces - make sure leaves, branches and other dead materials are added to the humus layer - protect the vegetative cover by adding trees - cycle nutrients through grazing - trap water in the humus layer, pits, ditches Also, look up the work of John D. Liu, he did great work in the Löss plateau in China and Jadav "Molai" Payeng, who created a 300 hectare forest mostly by himself.