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12 Cards in this Set

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  • Back

Alfisols

Soils of deciduous forests of temperate moist climates

Andisols

Form in recent volcanic materials, parent materials are weathered particles or volcanic glass which provide a very distinctive soil

Aridisols

Soils of arid climate of cool to hot deserts and scrublands

Entisols

The least developed of the soil orders, lacks well developed horizons

Gelisols

Very cold soils of the tundra, cold dessert or high peaks, very fragile, very large carbon sink.

Histosols

Form from decaying organic matter in wetlands, function as large carbon sink

Inceptisols

"Young" soil but better developed than entisols, weakly developed horizons appear

Mollisols

Rich dark soils of the grasslands , must be a deep dark A horizon with high base saturation, richest of agriculture soils

Oxisols

High weathered soils of the tropics, A horizon is low in organic matter and the soil is largely comprised of granules of iron oxide clays that behave like sand, red yellow color

Spodosols

Often formed under coniferous conditions in cool, moist regions, lightly colored, acidic, course soils

Ultisols

Highly weathered soils of warm and humid climates but not as weathered as oxisols

Vertisols

Forms from parent materials very high in clays that shrink and swell during drying and wetting cycles, such that large soil cracks from.