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