What are the modes of population growth

There are three main population growth patterns.

I. Primitive (also known as: high high low pattern)

Basic characteristics: high birth rate, high death rate, low natural growth rate.

Scope of distribution: primitive society and individual areas of individual countries in modern Africa.

Causes: Primitive societies and these individual regions, mainly due to the limitations of the natural environment, showing a primitive pattern of population growth. Generally, the natural environment is superior to the region of high natural growth rate, the environment of the region of poor natural growth rate is low.

Traditional (also known as: high-low-high model)

Basic characteristics: high birth rate, low death rate, high natural growth rate.

Scope of distribution: agrarian societies and most developing countries, but excluding Russia.

Causes of formation: the increase in the social workforce and social wealth, which promotes the development of society, as well as the promotion of urbanization, which leads to an increase in the birth rate, while the death rate is reduced, which ultimately leads to a high rate of natural growth.

Third, the modern type (also known as: low-low-low model)

Basic characteristics: low birth rate, low death rate, low natural growth rate.

Distribution: most developed countries, as well as Russia.

Causes of formation: As society breaks further into modern times, the birth rate begins to decline significantly, and the death rate continues to decline and reaches a low level. As a result, the gap between the birth rate and the death rate gradually decreased, and eventually the natural growth rate gradually decreased, and even some developed countries even began to experience negative or zero population growth.

Expanded Information

Population growth pattern, also known as the demographic transition pattern, which reflects the birth rate, death rate and natural growth rate of different countries and regions of a country or region in a certain period of time in the population change.

The main factors that cause population growth are:

(1) natural population growth, i.e., the difference between new births and deaths;

(2) migration growth, i.e., the difference between the population that moves in and the population that moves out. The absolute magnitude of population growth is measured by the net population increase, which is equal to the sum of the natural population growth and the migration growth.

The relative magnitude of population growth is the ratio of the net population increase to the total population. Generally, the population growth rate should be smaller than the economic growth rate, otherwise the GNP per capita will decrease and the living standard of the people will decline.

Baidu Encyclopedia - Patterns of Population Growth