How plants in pastures help stop soil from washing away
Using geospatial analysis to detect soil loss in pasture in the Brazilian savanna (Cerrado)
Not medical advice. For informational purposes only. Always consult a healthcare professional. Terms
Surprising Findings
The strongest link between vegetation and erosion was in moderately degraded areas, not the worst-off lands.
People often assume only severely damaged land needs urgent help, but this shows intermediate zones are where vegetation makes the biggest difference.
Practical Takeaways
Farmers and land managers should prioritize restoring vegetation cover in moderately degraded pastures to reduce soil loss.
Not medical advice. For informational purposes only. Always consult a healthcare professional. Terms
Surprising Findings
The strongest link between vegetation and erosion was in moderately degraded areas, not the worst-off lands.
People often assume only severely damaged land needs urgent help, but this shows intermediate zones are where vegetation makes the biggest difference.
Practical Takeaways
Farmers and land managers should prioritize restoring vegetation cover in moderately degraded pastures to reduce soil loss.
Publication
Journal
Australian Journal of Crop Science
Year
2025
Authors
Alisson Neves Harmyans Moreira, D. Casaroli, Rafaella Resende Andrade, Rafael Battisti, Angelina Harmyans Ciappina
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Claims (4)
If you keep chickens on the same pasture all the time without rotating it, the soil gets worse, the grass doesn't grow as well, and there are fewer bugs and plants for the chickens to eat.
Most of the pastureland in this part of Brazil's savanna is somewhat damaged — not the worst, but not healthy either — and this 'medium damage' covers more area than any other type.
Most of the eroded land in a Brazilian savanna watershed is in damaged pasture areas, and the biggest chunk of that land loses soil at a rate of 20 to 40 tons per hectare every year.
The more plants covering the ground in damaged savanna pastures in Brazil, the less soil gets washed away — and plants explain a big chunk of why some areas lose more soil than others.