Total number of people divided by total land area
In a region, the number of people supported by a unit area of arable land
The ratio of the number of farmers to the total amount of arable land.
The number of years needed to double a population, assuming a constant rate of natural increase.
Natural Increase Rate (NIR)
The percentage by which a population grows in a year.
Total Fertility Rate (TFR)
The average number of children a woman will have throughout her childbearing years.