Stable population

Stable population (STABLE population)

Translation
Section	English 703	Arabic 703	Czech 703	German 703	Spanish 703	Finnish 703	French 703	Italien 703	[[pl-I:70#703\|Template:Lang name -pl 703]]	Portuguese 703	Russian 703
703-1	intrinsic rate of natural increase —true rate of natural increase	معدل الصميم للزيادة الطبيعية	koeficient progresivnosti	wesentliche Zuwachsrate	tasa intrínseca de crecimiento natural	vakaa lisääntyneisyysluku	taux intrinsèque d’accroissement naturel	saggio intrinseco d’incremento naturale —saggio vero d’incremento naturale	istotna stopa przyrostu	TAXA de crescimento natural intrínseca —TAXA de crescimento vegetativo legítima	Истинный коэффициент естественного прироста
703-2	stable population	مجتمع المستقر	stabilní obyvatelsvo —stabilní populace	stabile Bevölkerung	población estable	stabiili väestö	population stable	popolazione stabile	ludność ustabilizowana	POPULAÇÃO estável	Стабильное население
703-3	stable age distribution	تركيب عمري مستقر	stabilní věkové složení	stabiler Altersaufbau	composición estable por edades	ikärakenne vakaa	composition par âge stable	distribuzione per età stabile —composizione per età stabile	stała struktura wieku	DISTRIBUIÇÃO estável por idade	Стабильное распределение по возрастным группам
703-4	initial age distribution	تركيب العمري الابتدائي	výchozí věková struktura	Ausgangs-Altersaufbau	composición inicial por edades	alkuperäinen ikärakenne	composition par âge initiale	distribuzione per età iniziale —composizione per età iniziale	początkowa struktura wieku	DISTRIBUIÇÃO inicial por idade	Начальное повозрастное распределение
703-5	growth potential	كمون الزيادة	potenciální růst	potentieller Zuwachs	potencial de crecimiento	kasvupotentiaali	potentiel d’accroissement	potenziale d’incremento	potencjalny wzrost (liczby ludności)	POTENCIAL de crescimento	Потенциальный рост населения
703-6	stationary population	مجتمع المتوقف	stacionární populace	stationäre Bevölkerung	población estacionaria	stationäärinen väestö —vakioväestö	population stationnaire	popolazione stazionaria	ludność zastojowa	POPULAÇÃO estacionaria	Стационарное население
703-7	logistic population	مجتمع اللوجستيكي ״الامدادي״	logistická populace	logistische Bevölkerung	población logística	logistinen väestö	population logistique	popolazione logistica	ludność logistyczna	POPULAÇÃO logística	Логигческий рост населения

It can be shown that when a closed population (701-4) is subjected to constant age-specific fertility and mortality rates (631-8; 412-1) for a sufficiently long period of time, its annual rate of increase will tend to become constant. This constant rate of increase is called the intrinsic rate of natural increase¹ or true rate of natural increase¹, and a population .which has reached this stage is called a stable population². The proportion of persons in different age groups in such a population will be constant, i.e., the population will have a stable age distribution³ which is independent of the initial age distribution⁴ and depends only on the fertility and mortality rates that obtained. Human populations never reach stability in practice, as fertility and mortality rates constantly change, but the computation of a stable population as a model may serve as an index of the growth potential⁵ of a set of age-specific fertility and mortality rates. A stable population in which the rate of natural increase is zero is called a stationary population⁶, in such a population the numbers in a given age group are equal to the integral of the survivorship function (431-3) of the life table taken between the upper and lower age limits of the group. A logistic population⁷ growing in accordance with the logistic law of growth is one in -which the rate of growth decreases as a linear function of the population already alive and which will tend asymptotically to an upper limit.