GEOG 151 Chapter Notes - Chapter 2: Demographic Transition, Ecumene, Total Fertility Rate
Document Summary
Agricultural density: the ratio of the number of farmers to the total amount of arable land (land suitable for agriculture). Arithmetic density: the total number of people divided by the total land area. Crude birth rate: the total number of live births in a year for every 1,000 people alive in the society. Crude death rate: the total number of deaths in a year for every 1,000 people alive in the society. Dependency ratio: the number of people under age 15 and over age 64 compared to the number of people active in the labor force. Doubling time: the number of years needed to double a population, assuming a constant rate of natural increase. Ecumene: the portion of earth"s surface occupied by permanent human settlement. Elderly support ratio: the number of working-age people (ages 15-64) divided by the number of persons 65 and older.
