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ccafs.cgiar.org/blog/terracing-...ange-east-africa

Land degradation has spread to two-thirds of sub-Saharan Africa due, in part to the increased pressure of agriculture to meet the food needs of a growing population and variabilities caused by climate change. But smallholder farmers are fighting to reclaim and revitalize the land, and their efforts in soil and water conservation may be helping more than anyone knew.

An international group of researchers led by the Karlsruhe Institute of Technology (KIT-Germany) found that the long-term impact of Fanya-juu terraces, a soil and water conservation measure employed in degraded agricultural landscapes, is so effective in both preserving valuable topsoil and promoting plant growth that it has led to the recovery of organic matter levels comparable to those observed in neighbouring semi-natural ecosystems. Farms with such terraces store one-third more soil organic matter than farms under conventional agricultural practices.


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East Africa