Changes in Population Structure as a Global Problem
Transkrypt
Changes in Population Structure as a Global Problem
Rączaszek, A. (2003) Changes in Population Structure as a Global Problem. In: M. Gajos, U. Myga - Piątek (ed.). Geographical Information Systems. Interdisciplinary Aspects. University of Silesia - GIS Forum – SILGIS Association, Sosnowiec – Zagreb, 483-490. Geographical Information Systems - Interdisciplinary Aspects University of Silesia - GIS Forum - SILGIS Association, Sosnowiec - Zagreb 2003 Andrzej Rączaszek Univesity of Economics in Katowice, Poland Changes in Population Structure as a Global Problem The history of homo sapiens on earth lasts a few thousands years already. The rate of changes in the amount of the globe’s habitants had been growing slowly through past centuries but the most important changes in disposition of population and basic demographic indexes are observed during XX century. For the size of population, and partially also for the process of human reproduction, basic significance lies in the average length of life. Already, in XVIII century we could observe activities set for providing for basic social needs. The origins of insurance system were constructed at the end of XIX century, however it embraced small part of the population only, because the average life-length in most European countries, at least at the beginning of XIX century, didn’t exceed over 35 years of age1 (Table 1). If we consider the facts above together, we’ll come to a conclusion that during the endless existence of humans on Earth two main demographic factors determined its evolution: high death-rate, including babies2, and short average of life expectancy3. Although these tendencies have changed a lot, thanks to the achievements of today’s civilisation, there are still huge differences in this sphere between many countries with different level of development4. Table 1 confirms the well-known fact that average length of life has prolonged in XX century, in some countries even by 100%. First substantial increase in the average life-length was noticed already in 20. and 30. In better-developed countries, it was caused by progress in medicine, mainly by introducing antibiotics and by improvement in sanitary conditions in health service. Worth to consider, until World War the Second, only one number was given for the average human life-length, while after 1 Outstanding french demographer J.M.Poursin define the average life expectation of 35 years as „close to traditional demographic system”. J.M.Poursin, La population mondiale. (Ludność świata). PWN, Warszawa 1976, s. 147. 2 The average level of infant mortality in past ages is estimated at 250-300‰, however from 1805 to 1820 in western european countries it was still 185 ‰. R. Pressat, L’analyse démographique. (Analiza demograficzna). PWN, Warszawa 1966, s. 112. 3 In the second half of XVIII century in France the average life expectation was 28,8 years, while in India between 1891 and 1901 the average life expectation was estamated 23,8 years. R. Pressat, L’analyse..., op. cit. s. 160. 4 In the 60. the average life expectation in well-developed countries was estimated between 65 and 75 years, while in developing countries – between 45 and 60. J. M. Poursin, La population..., op. cit., s. 16. 483 Rączaszek, A. (2003) Changes in Population Structure as a Global Problem. In: M. Gajos, U. Myga - Piątek (ed.). Geographical Information Systems. Interdisciplinary Aspects. University of Silesia - GIS Forum – SILGIS Association, Sosnowiec – Zagreb, 483-490. Andrzej Rączaszek Table 1 Length of life in chosen countries at the end of XIX and beginning of the XX century No 1 2 3 4 5 6 7 8 country years e.o.l.. 2 3 4 Austria 1870- 32,4 80 Germany 1871- 37,0 81 France 1877- 42,1 81 England 1871- 43,0 80 Sweden 1871- 47,0 80 Russia 1896- 32,3 97 Japan . . 9 Poland a USSR . . years 5 19061910 19101911 19081913 19101912 19111915 19261927 19261930 1927 e.o.l. years e.o.l. years e.o.l. years e.o.l. 6 7 8 9 10 11 12 41,7 1966 67,9/73,5 2000 75,4/81,2 . . 49,1 193234 50,4 192833 53,4 193032 57,9 193135 a . 44,4 45,7 . 61,3 1964- 67,6/73,5 1998 74,5/80,5 65 56,7 1965 67,8/75,0 1999 74,5/82,3 60,8 196365 64,3 196165 . 196566 1966 . 68,1/74,2 1998- 75,1/80,0 2000 71,6/75,7 1999 77,1/81,9 a 66,0/74 1999 59,9/72,4 68,4/73,6 1999 77,1/84,0 45,9 1931- 49,8 1965- 66,8/72,8 2001 70,2/78,4 32 66 Sources: Roczniki Statystyczne GUS e.o.l. = expectation of life the war we usually have two numbers: one for men and another for women, and that’s because a great difference in those numbers was noticed (Table 2). The level of babies’ death-rate factor is in social studies usually treated as a measure of the general level of civilisation’ development, at least as a good reflex of sanitary conditions5. For sure it used to be like that when this measure was 2-3% or more, earlier6. Now, when in the most developed countries this measure doesn’t exceed over 10‰ it’s value, as a cognitive factor is considered much less precise7. Table 2 shows changes in the level of babies’ death-rate factor from before World War 2. The level of the best of those days’ known factors is equal to today’s worst ones. This shows the progress that has been achieved during last 60 years. Obviously, this conclusion applies only to countries for which we know the value of this particular factor. We can assume that for many 3rd World countries this factor’s level (from 20) is still hard to achieve. 5 R. Pressat, L’analyse..., op. cit. s. 114. See: J.Z.Holzer, Demografia. (Demography). PWE, Warszawa 1994. 7 E. Rosset, Trwanie życia ludzkiego. (Expectation of life). PAN, Ossolineum, Wrocław, Warszawa, Kraków, Gdańsk 1979, s. 79. 484 6 Rączaszek, A. (2003) Changes in Population Structure as a Global Problem. In: M. Gajos, U. Myga - Piątek (ed.). Geographical Information Systems. Interdisciplinary Aspects. University of Silesia - GIS Forum – SILGIS Association, Sosnowiec – Zagreb, 483-490. Changes in Population Structure as a Global Problem Table 2 Infant mortality No country 1 2 2 USA 3 Germany 193539 3 53,2 66,3 4 Netherland s 5 Canada 37,4 6 Japan 7 Hungary 110,4 133,5 67,3 8 United 58,5 Kingdom 9 UDSS/Rus 184,0 sia 10 Poland 139,2 1958 1969 1980 1990 2000 4 5 6 7 8 27 20,8 12,6 9,2 a 7,2 Mexico 65,7 40,3 34,0 a 15,8 81 Uruguay Romania Turkey 92,1 Turkey 58 Algeria a 73 54,9 53,3 Colombia Jugoslavia South India 80,0 India b 71,0 100 56,3 Africa 83,3 35 15,3 7,5 4,6 3,2 China 100 Netherlands China 39,3 47,0 41,0 13,1 23 18,6 12,2 7,9 5,6 41 25,8 22,1 17,4 15,5 . 34,4 25,5 19,3 8,1 a 1998 b 1997 Sources: Roczniki Statystyczne GUS; R. Pressat, Analiza demograficzna. PWN, Warszawa 1966 The average life-length, the highest now in countries providing the highest income per capita, could also be a measure of civilisation development. Therefore those two population variables are base of universal studies and, at the turningpoint of XX and XXI century, we can show that XX century has caused changes that were never observed before in this sphere. It is then a positive fact, showing that whole mankind, more or less, uses benefits of progress and development. Infant mortality decreases while expectation of life grows. Those changes can be considered profitable for individual lives, because number of those who now can avoid decease as children grows, and better living conditions allow their life-length to exceed8. These positive effects of demographic changes in XX century are not the only ones observed. Changes in the structure of population, mentioned in the title of this article, can have, as shown, quality value but also quantitative value. If we 8 See: E. Rosset, Trwanie życia..., op. cit. 485 Rączaszek, A. (2003) Changes in Population Structure as a Global Problem. In: M. Gajos, U. Myga - Piątek (ed.). Geographical Information Systems. Interdisciplinary Aspects. University of Silesia - GIS Forum – SILGIS Association, Sosnowiec – Zagreb, 483-490. Andrzej Rączaszek noticed before that, despite the visible progress, there still are great differences in population measures in countries with different levels of development, we can also see the consequences of this situation. This caused a huge change in spatial disposition of world’s population. As the rate of demographic and economic development of many countries differs, also the present list of the most powerful ones changed. This comparison shows which countries caused, in XX century, greatest effect on the development and changes of today’s world (Table 3). Table 3. The greatest powers of the world - by population in millions No 1 2 3 4 5 6 7 8 9 10 11 country 2 China Russia USA Germany Austria-Hungary Japan England France Italy Turkey 1800 1850 1900 3 4 5 440 . . 39 61 132 5 23 72 25 36 56 45 . . 44 . . 11 21 41 28 36 40 18 24 33 25-30 . . country 6 China India USA Indonesia Brazil Russia Pakistan Bangladesh Japan Nigeria 2001 7 1285 1025 285 215 173 146 145 140 127 117 Sources: Roczniki Statystyczne GUS Although the data for the XIX century shown in the table above are not complete, these are all known for the author. But there’s a possibility of comparing first 10 countries in the world by population at the beginning of XX and XXI century. Those lists, as shown above, differ quite a lot9. At the beginning of the XX century there were 6 European countries, excluding Turkey, in the “greatest 10”. Nowadays of European countries only Russia still hangs on to this list. Other European countries were replaced by ones from 3 other continents, even Third World countries. This shows how population’s geography changes. And this aspect I consider as the most significant here, as it shows the global nature of demographic changes (Table 4). The comparison above shows the rate of increase of population in countries which reached over 100 millions people by the end of 2001. GUS Statistic Yearbooks, also those printed before World War the Second, allow showing data about the population of the greatest countries in the world starting from XIX century. The table 4 shows as well concequences of worlds’ political situation. 9 See: E. Rosset, Eksplozja demograficzna. (Demographic explosion). KiW, Warszawa 1978. 486 Rączaszek, A. (2003) Changes in Population Structure as a Global Problem. In: M. Gajos, U. Myga - Piątek (ed.). Geographical Information Systems. Interdisciplinary Aspects. University of Silesia - GIS Forum – SILGIS Association, Sosnowiec – Zagreb, 483-490. Changes in Population Structure as a Global Problem Table 4. Changes in population of the biggest countries in the world No country 1 2 2 China 3 India 4 USA 5 Russia 6 Japan 7 Pakistan 8 Indonesia 9 Bangladesh 10 Nigeria 11 Brasil 12 Mexico 1800 1850 1900 1933 1940 1950 3 4 5 6 7 8 440 419,0 h 546,8 . . 414,7 206 . a a h 358,3 . 363,1 374,2 5 23 72 126,1 j 152,3 130,2 39 61 132 i ih c 168,0 175,5 113,2 33 44 67,5 j 72,1 82,9 . a a f 75,0 . . . b h 76,7 . . . 63,3 66,3 a a . . . . 19,4 h c . . . 19,4 31,8 3 . 17 44,9 h 51,9 42,4 17,6 h 25,8 . . . 19,0 1960 1970 1980 1990 2001 9 10 11 12 13 646,6 773,7 996 1155, 1285, 3 0 429,0 539,9 689 834,7 1025, 1 180,7 204,9 228 249,9 285,9 g 117,5 93,2 42,4 94,2 e 139 147,9 130,7 103,5 117 123,5 53,5 85,3 112,0 122,1 152 180,6 145,6 127,3 145,0 214,8 50,3 60,7 88,2 108,1 140,4 d 66,2 80,6 96,2 116,9 55,7 69,7 93,4 121 148,5 172,6 36,0 49,1 69,7 86,2 100,4 a British India, Rocznik Statystyczny 1936 b Netherlands India, as above c 1956 d 1963 e f g h i j 1971 Pakistan East and West 1959 1936 USRR 1938 Sources: Roczniki Statystyczne GUS Among the independent countries for a long time we wouldn’t find India of Nigeria, and independent Pakistan or Bangladesh appears in there even later. It’s worth though, despite past historical and political events, to observe the dynamics of changes in population there. In 1800 USA and Brazil were not yet significant 487 Rączaszek, A. (2003) Changes in Population Structure as a Global Problem. In: M. Gajos, U. Myga - Piątek (ed.). Geographical Information Systems. Interdisciplinary Aspects. University of Silesia - GIS Forum – SILGIS Association, Sosnowiec – Zagreb, 483-490. Andrzej Rączaszek countries by the population. However, that was still the colonial period, preceding great migrations. But it’s possible to compare the situation in particular countries in 1900 and 2001. During this time the population of Brazil had grown 10 times, USA’s population – 4 times, China’s and Japan’s – 3 times, while Russia’s by 10% only. The comparison between year 1950 and year 2001 would give similar results. The population of India, Indonesia or Bangladesh had tripled during this time. The population of Mexico or Nigeria had grown even 4 times. At the same period USA’s population increased by a little less than 100%, while Russia’s only by not even 30%. In any comparison of the population increase dynamics, the Third World countries dominate (Table 5). Table 5. Population in millions by continents from the beginning of XX century year 1900 1920 1930 1940 1950 1960 1970 1980 1990 2000 2001 World Europe Africa North America South America Asia Oceania 1608 401 120 101 43 937 6 1860 479 143 145 60 1024 9 2070 535 164 168 74 1119 10 2295 576 191 185 89 1243 11 2522 547 221 226 113 1373 13 3022 605 277 274 148 1702 16 3696 656 357 324 193 2147 19 4440 693 467 374 242 2641 23 5266 722 615 427 295 3181 26 6055 729 784 482 346 3684 30 6134 726 813 493 351 3720 31 Sources: E. Rosset, Eksplozja demograficzna. KiW, Warszawa 1978; Roczniki Statystyczne GUS As the effect, as presented in the 5th table, during XX century the population of the world had exceeded almost 4 times, however not equally. The smallest growth is observed in European population – by a little over 80%. 4 times increase of population occurs in Asia; 5 times growth appears in North America and Oceania. Even greater increase was observed in the remaining continents, coming to 800 % in South America. Therefore, we can notice that the population of some countries has grown much faster than other ones (Table 6). Table 6 shows the consequences of those distinctive changes in particular continents. If we consider world’s population as 100% then in 1900 Europe occupied ¼, while Asia 60% of it. Africa was then by population almost 3 times smaller than Europe. Today’s participation of Asia in world’s population is almost similar, a little over 60%, while Europe’s “share” reduced to not even 12%. That means Europe’s participation had decreased by half over XX century It’s not only a result of European’s pride that caused 2 world wars, but also a result of changes in mentality, value system, and, what follows, generation’s exchange rate. Apart from reasons from those changes, we have nowadays totally different geography of world’s population. At the cost of Europe and North America’s poor 488 Rączaszek, A. (2003) Changes in Population Structure as a Global Problem. In: M. Gajos, U. Myga - Piątek (ed.). Geographical Information Systems. Interdisciplinary Aspects. University of Silesia - GIS Forum – SILGIS Association, Sosnowiec – Zagreb, 483-490. Changes in Population Structure as a Global Problem population growth, the share of Africa and South America in world’s population increased considerably. A little growth was also noticed in Asia’s participation. Table 6. Population in percents by continents from the beginning of XX century year 1900 1920 1930 1940 1950 1960 1970 1980 1990 2000 2001 World Europe Africa North America South America Asia Oceania 100 100 100 100 100 100 100 100 100 100 100 24,9 25,5 25,8 25,1 21,7 20 17,7 15,6 13,7 12,0 11,8 7,5 7,7 7,9 8,3 8,8 9,2 9,7 10,5 11,7 12,9 13,3 6,3 7,8 8,1 8,1 9,0 9,1 8,8 8,4 8,1 8,0 8,0 2,7 3,2 3,6 3,9 4,5 4,9 5,2 5,4 5,6 5,7 5,7 58,2 55,1 54,1 54,1 55,5 56,3 58,1 59,6 60,4 60,9 60,7 0,4 0,4 0,5 0,5 0,5 0,5 0,5 0,5 0,5 0,5 0,5 Sources: as above Well-developed countries produce most worlds’ national income. Simplifying a little, we can include here countries placed in Europe, North America and Oceania. Over XX century their share in worlds’ population had decreased from 30 to 20%. It’s not a profitable change, considering producing income that enables worlds’ progress. But it is, as shown, a global problem and therefore the author of this article wouldn’t venture to form conclusions other than presented. Bibliography 1. Poursin J.M., 1976: Ludność świata. (La population mondiale). PWN, Warszawa. 2. Pressat R, 1966: Analiza demograficzna. (L’analyse démographique). PWN, Warszawa. 3. Rosset E., 1979: Trwanie życia ludzkiego. (Expectation of life). PAN, Ossolineum, Wrocław, Warszawa, Kraków, Gdańsk. 4. Rosset E., 1978: Eksplozja demograficzna. (Demographic explosion).KiW, Warszawa. 5. Holzer J.Z., 1994: Demografia. (Demography). PWE, Warszawa. 6. Statistical Yearbook, GUS, Warszawa. 7. Demographical Yearbook, GUS, Warszawa. 489 Rączaszek, A. (2003) Changes in Population Structure as a Global Problem. In: M. Gajos, U. Myga - Piątek (ed.). Geographical Information Systems. Interdisciplinary Aspects. University of Silesia - GIS Forum – SILGIS Association, Sosnowiec – Zagreb, 483-490. Andrzej Rączaszek Andrzej Rączaszek Uniwesity of Economics in Katowice, Poland Changes in Population Structure as a Global Problem S u m m a r y During XX century we experienced changes on Earth that present global character. This relates to politics, military potential and economic life. Great changes concern also demographic relations. We have here positive changes-in quality, such as an extension of average life-length and a drop in babies’ death rate. But there are also negative consequences caused by quantitative changes, such as a drop in participation in worlds’ population of those continents that cause the biggest effect on economic growth, and these are Europe, North America and Australia. Keywords: demography, demographic relations, qualitative changes, quantitative changes, populations structure, percentage share, global problem Andrzej Rączaszek Akademia Ekonomiczna w Katowicach, Polska Zmiany w Strukturze Ludności jako Problem Globalny S t r e s z c z e n i e W XX wieku nastąpiły na kuli ziemskiej zmiany, które mają charakter globalny. Dotyczy to polityki, potencjałów militarnych i życia gospodarczego. Daleko idące zmiany dotyczą także stosunków demograficznych. Można tu zauważyć zmiany jakościowe, pozytywne dla ludzkości, takie jak wydłużanie się przeciętnego trwania życia czy spadek umieralności niemowląt. Negatywne konsekwencje będą miały natomiast globalne zmiany ilościowe, w tym głównie spadek udziału w liczbie ludności świata mieszkańców tych kontynentów, które w największym stopniu przyczyniają się do wzrostu gospodarczego, a więc Europy, Ameryki Północnej i Australii. Słowa kluczowe: demografia, stosunki demograficzne, zmiany jakościowe, zmiany ilościowe, struktura ludności, udział procentowy, problem globalny 490