what is physiological density

Physiological density, also known as real population density, is a measure of the number of people per unit area of arable land. It provides insight into the relationship between population and agricultural resources within a specific area. A higher physiological density suggests that the available agricultural land is being used by more people and may reach its output limit sooner than a country with a lower physiological density. This measure is important for understanding the sustainability of agricultural practices and the potential strain on available arable land. It is calculated by dividing the total number of people in a region by the area of arable land.