Topic 2.1: Population Patterns

Distribution, Density, and Carrying Capacity (PSO-2)

1. Where do people live? (Factors)

Humans avoid the "Too's" (Too Hot, Too Cold, Too Wet, Too High). Select a biome to settle.

2. Density Visualizer

Manipulate the variables to see how "Pressure on the Land" changes.

Drastically reducing this shows high Physiological Density.

Arithmetic Density

Total Pop / Total Land

10
people per sq mi

"How crowded is the country overall?"

CRITICAL

Physiological Density

Total Pop / Arable Land

20
people per ARABLE sq mi

"How much pressure is on the food supply?"

Agricultural Density

Farmers / Arable Land

4
farmers per ARABLE sq mi

"Is the farming efficient (MDC) or manual (LDC)?"

The "Egypt Paradox"

Egypt has a low Arithmetic Density (98 people/km²) because most of the country is empty desert.

However, almost everyone lives along the Nile River. This creates a massive Physiological Density (3,500+ people/km²).

Takeaway: Arithmetic density can be misleading. Always check Physiological density to understand the real carrying capacity.
Total Land Area