Term
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Definition
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- Long, harsh, cold winter; short summer; 4-10 rain
- Poor soil
- No amphibians or reptiles; only warm-blooded animals
- Slow to regenerate
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Term
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Definition
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- Largest biome; extensive lumber resource
- Long severe winter; short growing season; 20 rain
- Acidic soil; some deep permafrost
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Term
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Definition
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- Washington/Oregon/N. California; lumber and pulpwood source
- Mild winters; cool summers; 80-150 rain
- Poor nutrients, some organic material; nutrients leached by rain
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Term
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Definition
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- Hot summers; cold winters; 30-50 rain
- Topsoil rich in organic material
- All types of animals
- Most converted to farms; intensive use -> less fertile
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Term
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Definition
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- Hot summers; cold winters; 10-30 rain, sometimes drought
- Deep and rich soil
- Prairie grasses; occasional trees
- Rarest biome; most converted to farms (90% in America)
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Term
| Tropical Grasslands/Savanna |
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Definition
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- Temperature varies little; seasons regulated by precipitation; 34-60 rain
- Low in nutrients/minerals partly due to leaching
- Susceptible to desertification from overgrazing
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Term
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Definition
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- Both temperate (cold) and tropical (hot) areas
- Temperature extremes; less than 10 rain
- Poor in organic material; high mineralization
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Term
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Definition
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- Dry forest (60-80 rain); rain forest (80-120 rain)
- Warm, moist climate
- Poor soil; most nutrients locked in living tissue
- Highest productivity and biodiversity
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