Soil

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Soil

affected by

time

parent material

relief

organisms

climate

Layers

bedrock “R”

just rock

“C horizon”

bedrock and soil

subsurface “B horizon”

mostly large rocks and some soil in between

roots

biomantle “A horizon”

soil and soil organisms

upper most “O”

dead organic matter

weathering and erosion

loam

best convination

silt

sand

clay

Hecho por Sol Valle Carrillo y Violeta Sarubbi

Soil Orders:

doesn’t depend on latitude scheme:

Vertisol

located in Su Dan

it's dry

mainly formed by clay

Histosol

located in Canada and river Deltas

acid

rich in organic matter

wetland soils

Andisol

located in volcanic Andes

rich in nutrients

it’s volcanic soil

Oxisol

located in Amazon and Congo

rich in iron

most developed horizons

found in rainforests

Mollisol

located in American midwest, the Pampas, Russia

great for agriculture

found in grassland regions

dark soils

Aridisol

located in Arabia, Australia, northern Chirowa and western Chiroway

occur in human places or desert places

luck of water

Ultisol

rich in Iron

found in subtropical or humid areas

Alfisol

located in east coast USA

fair in horizon development

rich on Fe and Al

found in deciduous forest and broadleaf

Spodosol

located in Canadian east coast and Scandinavia

non-fertile

very acid

coniferous forest and boreal forest biomes

found in the equator areas

Gelisol

located in the northern of Russia and Canada

has permafrost

found in mountain areas

Inceptisol

starts development of “B horizon”

Entisol

more common

no soil horizons