5-Earth Science-Land-Soil-Layers

azonal soil profile

Soil can have no soil profile {azonal soil profile}.

intrazonal soil profile

Soil can have unstable but layered soil profile {intrazonal soil profile}.

zonal soil profile

Soil can have stable soil profile {zonal soil profile}.

pan layer

Hardened soil layers {pan layer} can be below topsoil.

topsoil

Soil surface layers {topsoil} can be porous and 0 to 24 inches thick.

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5-Earth Science-Land-Soil

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Date Modified: 2022.0225