a-horizon

• Camada superior do perfil do solo, geralmente rica em matéria orgânica e húmus, onde ocorre a maior parte da atividade biológica.

The top layer of a soil profile, typically rich in organic matter and humus, where most biological activity occurs.

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1. Topsoil layerC1formalscientific

   The uppermost layer of a soil profile, rich in organic matter and humus, where most biological activity occurs.

   Horizonte A

   • The A-horizon is crucial for plant growth due to its high nutrient content.
   • Farmers often test the A-horizon to determine soil fertility.
   • Earthworms are most abundant in the A-horizon of the soil.

   Sinônimossurface soiltopsoil