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Soil erosion is tearing DRC cities apart: what’s causing urban gullies, and how to prevent them

By Matthias Vanmaercke, Associate professor BOF Faculty of Science, KU Leuven

In fast-growing cities like some in the Democratic Republic of Congo (DRC), heavy rains are carving huge scars into the land. Known as urban gullies, these deep erosion channels can swallow homes, destroy roads and displace entire communities.

They can grow to hundreds of metres long and dozens of metres wide, splitting neighbourhoods in two. Once established, they keep expanding…

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