Soil and Soil Erosion (Grade 11 NSC Matric Geography): Flashcards
📚Flashcards
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10 cards from this deck
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Practise the cards
10 cards from this deck
Soil's role in agriculture
Soil's role in agriculture
Fundamental/central role in food production
Human settlement & fertile soil relationship
Human settlement & fertile soil relationship
People settle where fertile soils can support crops
River Nile's impact on Ancient Egypt farming
River Nile's impact on Ancient Egypt farming
Annual floods deposited nutrient-rich soil on farmland
Definition: arable land
Definition: arable land
Land that can be used for growing crops
% of SA soils suitable for crop farming
% of SA soils suitable for crop farming
12%
SA arable land feeding capacity
SA arable land feeding capacity
35 million people
USA arable land feeding capacity
USA arable land feeding capacity
800 million people
Is soil renewable or non-renewable?
Is soil renewable or non-renewable?
Essentially non-renewable (takes many years to regenerate)
3 factors limiting SA soil quality
3 factors limiting SA soil quality
Shallow soils, hard parent rock, low rainfall
Global pattern: population & soil fertility
Global pattern: population & soil fertility
Clear correlation - high fertility areas have dense populations