Soil horizon a — Free Biology Illustration | GPAI | GPAI

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Soil horizon a — Free Biology Illustration | GPAI | GPAI

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Soil horizon a

Soil horizon a

Biology

Soil horizon a

A horizontal A-horizon topsoil layer shown as a rectangular earthy cross-section, dark brown to nearly black and distinctly darker than the lower soil layers. The band has a rich organic topsoil appearance with fine crumbly, dense granular texture, mixed mineral grains, many small roots, and bits of decomposing organic matter.

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