ag hearths where were plants and animals first domesticated?

Ag Hearths

• Where were plants and animals first domesticated?

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Seed & vegetative Hearths

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Animal Domestication

Subsistence Agriculture

Where & why there?

What are the characteristics of subsistence agriculture?

As we move through this power point think about:

• The characteristics of subsistence ag

• Where and why there?

Climate Type?

How about the climate here?

Pastoral Nomadism

• Nomadic herding is a subsistence practice type of grazing. People raise animals for their own food and move them from place to place to areas of available pasture.

• Nomadic herding still exists in the world today in the areas of Northwest Asia, the Middle East, North Africa and the Arctic Tundra.

Characteristics of nomadic herding are:

• Subsistence • Travel • Sparse forage • Covers a large area of the

earth’s surface • Few products enter world trade • Poor quality livestock • Inadequate diets for livestock

and people • Extensive - takes a large land

area to produce enough food for people to survive

• Found in extreme climates (dry• or cold)• Generally in LDCs (Less

Developed Countries)

Shifting Cultivation

Where and why there?

• rainforest soils are not very fertile

• heavy rainfall leaches out the important nutrients from the soil

• Thus natives of rainforests move their area of cultivation every 3-4 years

• Takes place in tropical climates in South America, Africa and South East Asia

Intensive Subsistence Agriculture

Intensive Subsistence Agriculture

• Intensive = lots of labor per acre of output

• Intensive Subsistence Ag = small landholdings

Farmers must work intensively to subsist on their land

Where: Primarily in S. and SE Asia + Southern and eastern China

What: rice and wheat in Asia, corn and potatoes in the Americas

What explains the patterns here?

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Subsistence Ag Summary