Transcript Canada’s Soil Regions Old Making Connections Textbook

Canada’s Soil Regions
Old Making Connections
Textbook pages 144-148
The 4 main ‘components of soil’:
•
Minerals: ________ particles and various nutrients
• This is why _____________ is so important as it moves rocks and
materials
•
Bacteria and Organic Material: _________ stuff
that decays
•
Air: provides CO2 and Oxygen to the plants through
the __________
•
Moisture: absorbed by plants through their ______
Good Dirt???
• Why this
Combo?
Too much or too Little _____?
What are Leaching and Calcification?
•
Leaching:
•
Calcification:
Leaching / Calcification
How is topsoil created?
• Dead stuff falls on the earth and _______
• Fertilize with manure/ compost/ chemicals
– OOOPS!!!
Topsoil Erosion Issue
• Dirty 30s
– Farmers turned over the soil
• New _______ were used too much!!!
• Draught meant no _____to keep top layers of soil
• Winds blew the topsoil away!!!
What is loam and why do farmers
like it soooo much!!!
• is soil composed of sand, silt, and clay in
relatively _______ concentration (Wiki)