APHG U 2 Population Part II Population Density

APHG U 2 Population Part II: Population Density Arithmetic Density Physiological Density Agricultural Density

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

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

Most Densely Populated Areas World’s Most Densely Populated Countries Most Densely Populated U. S. Cities (people/sq. mi. ) 1. Monaco 1. Los Angeles, CA 2. Macao 2. San Francisco, CA 6, 266 3. Singapore 3. San Jose, CA 5, 820 4. New York City, NY 5, 319 5. Las Vegas, NV 6, 999 4, 525 *Atlanta, GA 1, 707

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

FPhysiological Density: The number of people per unit of area of arable land, which is land suitable for agriculture.

FPhysiological 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. • Physiological Density is one that tells the whole story for geographers. It is sometimes referred to as food growing capacity or “Real” Population Density. It is calculated by taking the population of a state and dividing by the arable land area of the state (sq. mi or km)

Egypt and Physiological Population Density Observe Egypt below. Egypt’s arithmetic population density is 90 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 3, 503/sq mile. This density continues to rise rapidly. 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. Egypt is now #15 in population worldwide. Their population has increased by 30 million in the last 15 years. Potential problems for Egypt?

Countries with High Physiological Densities States with High Physiological Density: Egypt, Monaco, Japan, Oman, Netherlands, Belgium, S. Korea, Iceland, Colombia, Sri Lanka Physiological density provides insights into the relationship between the size of a population and th availability of resources in region. The relatively larg physiological densities of Egypt and the Netherland demonstrates that crops grown on a hectare of lan in these two countries mu feed far more people than in the United States or Canada, which have muc lower physiological densities. The highest physiological densities are found in Asia, sub-Sahara Africa, and South America The lowest are in North America, Europe, and South Pacific.

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

Agricultural Density What does agricultural density truly tell us about the economic development of a country?