1 / 17

POPULATION

POPULATION. Created by Ms. McFadden. Thomas Malthus. -English economist and demographer 1798: “Principal of Population” Positive Population checks - wars, disease, famine Negative Population checks- family planning, later marriage, celebacy. “Doomsday”.

brit
Télécharger la présentation

POPULATION

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. POPULATION Created by Ms. McFadden

  2. Thomas Malthus -English economist and demographer 1798: “Principal of Population” Positive Population checks - wars, disease, famine Negative Population checks- family planning, later marriage, celebacy

  3. “Doomsday”

  4. However, according to his predictions none of us would be here today. Things he did not take into account: • Direct Substitution- natural gas for oil • Tecnological Substitution- innovative farming machinery, Green Revolution, genetic engineering • Lifestyle substitution- value of people are changing, want more than basic necessities • Recycling- cuts back on resource consumption

  5. Still some environmentalists (Paul Ehrlic, William Catton) believe we will reach a doomsday if nothing is done to control population. • 15 people are born every second • This means almost 1 billion are born every year • Today the population is 6.3 billion + • By 2050 this is expected to double.

  6. The Problem…

  7. Death rate is decreasing due to: cures/eradication for diseases like smallpox and malaria, ORT, improvements in communications/transportation As a result….there are more people on the same area of land! • William Catton coined the term “carrying capacity”. This is defined as the amount of people that the land/resources can support. This is why doomsday may still happen----we are exceeding our carrying capacity!!!!!!!

  8. Where are the population problems? • Developing/LDCs/Third World countries • India, Most African countries, Malaysia • Stage 2 of the DTM • Haven’t had technological changes, lifestyle changes or economic improvement. • Result = Increasing stress on these environments

  9. How can these populations be controlled? • Education • Equality for women • Family planning

  10. A model for the world….CHINA Present Population = 1.3 billion (20% of the world’s population) Problem – only 11% of China’s land is arable and this has already been in cultivation for many years. Therefore, the land can not support many more people than what exists now.

  11. The Government of China predicted this and issued a birth control policy in 1971 called “wan xi shao” This means “later, longer, fewer” Later marriages- mid 20’s for women and late 20’s for men Longer intervals between births- 3-4 years between children Fewer children- 2 in urban, 3 in rural

  12. 1979-One Child Policy -Couples are given “planned birth certificates” (permission to have a child) -Used advertising campaigns -Spys in workplace and community -Strong pressure to confirm Rewards Punishments -free medical care -no medical care -increased wage and bonuses -decreased wage - free vacations for sterilizations/abortions -forced sterilizations/abortions -preferential housing -free daycare -benefits cease -free tuition for children -no university acceptance -extra pension income -decreased pension -guaranteed job when graduate -pay back financial benefits from first child -extra maternity leave

  13. Demographic Transition Model

  14. File • File history • File links • ChinaDemography.svg‎ (SVG file, nominally 874 × 591 pixels, file size: 30 KB) China’s Population

  15. Problems with this policy: • Infringement of Human rights • Sexual Discrimination- preference to male children has lead to female infanticide and abandonment, upset sex ratio(300 000 more boys than girls are born in China each year), “little emperors”. • Possible labour shortage; not enough children to support parents and grandparents. • Personal/Emotional Distress-from forced sterilizations/abortions, many couples want a boy and a girl • 80% of China’s population is rural so extra hands are needed to help with rice/farm production. • Couples living together who aren’t married/having children

  16. Relaxing the policy: • Rural areas, couples are now allowed to have another child after 4 years if the first is a girl • Cash bonuses higher for couples with female baby • Girls can now support parents in old age and have jobs and possessions handed down to them. • Old age pension is increased for compliance • Ultrasounds to find out sex is prohibited

  17. However, still amazing…. • Birth rate mid 60’s: 44 per 1000 • Birth rate by 1980: 18 per 1000 • Birth rate today: 14 per thousand No other country has decreased their birth rate so successfully or quickly.

More Related