15. Population geography plan

 
A.I.Voeykov came to the conclusion that not natural conditions played a decisive role in the 
territorial distribution of the population, but the people themselves. This meant that the 
anthropogeographic doctrine that prevailed during that period was not completely incorporated. 
He noted the importance of the distribution of the population between 
Demographic scientists B.S.Orlanis, V.A.The criterion for assessing the birth rate by 
borisovs using the total birth rate was determined. If, according to the general criterion, the total 
birth rate in the studied area or population group is less than 16 promille. The birth rate is low: if 
there are 16-24 promillehigh, if there are 25-29 promillehigh and above 40 promillehigh birth 
rate is very high1. 
Special coefficients of tugshshsh clearly indicate changes in the birth rate, are used in a 
thorough study of fertility. This coefficient can be attributed to a separate group of men and 
women iisbatan. In demographic studies, it is mainly used in relation to women of reproductive 
age (15-49yosh). Demogicheskiy enoiklopedechieskiy slovarh. M, 1985 s goal 
In the special birth rate, the number of children born in relation to women every 1000 
years of age 15-49 is determined and expressed as follows: 
F
15-49
=
TW
N
49
-
15
F15-49-special birth rate. 
N15-49-the number of children born in women aged 15-49 years in the period under 
study. 
T-the period under study (year). 
W-the number of women of reproductive age (15-49 years old, in countries with a low 
birth rate, women aged 15-44 years are taken. 
The special birth rate is ham compared to men. It is determined by the number of 
children born in relation to men every 1000 years of age 15-49 (for 14-54 years of age). 
Private birth coefficients are the most accurate coefficients in the study of fertility and 
represent the birth rate in certain age groups. This coefficient is usually every 1000 15-19, 20-
24, 25-29, 30-34, 35 - 39,40-44 and it is used in determining the number of children born in 
women of the 45-49 age group and is expressed as follows: 
F
xg‘y
=
1000
1
/



y
y
TWx
y
x
Nx
Fxgy-the coefficient of birth by a special age group. 
Nxgxqy is the number of children born to mothers of a certain age group. 
T - period under study (year) 
W is the average number of women in the age group under study. 
The coefficient of fertility accumulation (summarnhgy) is the indicator that most 
accurately represents the birth rate, which is used to represent the level of fertility in world 
regions, states and certain population groups. When comparing the birth rate by area, the ham is 
mainly used the fertility rate. The fertility rate is the average number of children who give birth 
during the life of each woman belonging to a certain generation (regardless of mortality and 
changes in the age structure, with the birth rate in each age group maintained).