What effect did overgrazing have on the pampas in Argentina?

Overgrazing in the pampas of Argentina led to significant degradation of the grassland ecosystem, resulting in soil erosion and a decline in soil fertility. The excessive pressure from livestock reduced plant cover, which in turn diminished the land's ability to retain moisture and support diverse flora and fauna. This degradation has adversely impacted agricultural productivity and biodiversity in the region, contributing to long-term ecological damage.