APHG U2 Population Density

• Arithmetic Density• Physiological Density• Agricultural Density

Arithmetic Density: The total number of people divided by the total land area.

Arithmetic Density: The total number of people / area of land measured in km² or mi²

Crude density, also called arithmetic density, is the total number of people divided by the total land area.

Physiological Density: The number of people per unit of area of arable land, which is land

suitable for agriculture.

Physiological Density: The number of people per unit of area of arable land, which is land

suitable for agriculture.

Physiologic Population Density

Egypt’s arable lands are along the Nile River Valley.

Moving away from the river a few blocks, the land becomes sandy and wind-sculpted.

•Arithmetic Density= 192/ sq.mi.•Physiological Density=

6,682 /sq. mi.

Egypt and Physiological Population Density

Egypt’s population distribution is closely linked to the proximity of water. In the north, the population clusters along the Mediterranean and in the interior, along

the banks of the Nile River. (2004)

• Observe Egypt below. Egypt’s arithmetic population density is 203 people/sq. mile. However, a better reflection of Egypt’s population pressure is measured in physiological population density.

Egypt has very little arable land. In measuring the people per square mile of arable land (physiological density), Egypt has a physiological density of 6,676/sq mile. This density continues to

rise rapidly.

• Agricultural Density: The number of farmers to the total amount of land suitable for agriculture.