Population

 

Population refers to the number of people living in a geographic area, like a city, a state, a country, or even the world.

Population growth refers to the change in population size. It can be positive or negative. In instances where there is no change in population, The population growth is said to be zero.

Population relates spatial variations in the distribution, composition, migration, and growth of populations to the terrain. Population involves demography from a geographical perspective. It focuses on the characteristics of population distributions that change in a spatial context. This often involves factors such as where populations are found and how the size and composition of these populations are regulated by the demographic processes of fertility, mortality, and migration. Contributions to population geography are cross-disciplinary because geographical epistemologies related to environment, place, and space have been developed at various times. Related disciplines include geography, demography, sociology, and economics. Since its inception, population geography has taken at least three distinct but related forms, the most recent of which appears increasingly integrated with human geography in general. The earliest and most enduring form of population geography emerged in the 1950s, as part of spatial science. Pioneered by Glenn Trewartha, Wilbur Zelinsky, William A. V. Clark, and others in the United States, as well as Jacqueline Beujeau-Garnier and Pierre George in France, it focused on the systematic study of the distribution of population as a whole and the spatial variation in population characteristics such as fertility and mortality.