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ENVIRONMENTAL PROBLEMS IN ASIA<br />
Environmental Problems in Asia<br />Two major factors:<br />Unparalleled economic development of the different countries i...
Desertification<br />Salinization<br />Alkalization<br />Intensified use to meet food supply needed<br />
Contamination<br />Problems in waste disposal<br />Rapid population growth<br />
Land degradation<br />AAZLINNOTISI<br />SALINIZATION<br />ZLAAKATNILOI<br />ALKALIZATION<br />NRDSCEIEIFIATTO<br />DESERTI...
Salinization and Alkalization<br />When salts come to the surface of the land or are carried in by water<br />When water w...
Desertification<br />Transformation of fertile land into a desert through soil erosion or overcultivation<br />If it persi...
Overgrazing<br />
As the size of animal herds increases, more pressure is wielded on the grazing lands<br />Iraq: sustains 11 million sheep ...
ZIIBRANNAUTO<br />URBANIZATION<br />
Urbanization in Asia<br />Led to the proliferation of depressed or slum areas<br />
SWEAT  AISSODLP<br />WASTE  DISPOSAL<br />
Problem on Solid waste disposal<br />Two types of wastes:<br />Domestic<br />Industrial<br />Health risks, degradation of ...
Loss of Biodiversity<br />Introduction of non-indigenous species of flora and fauna in a particular region<br />Pollution ...
POLLUTION<br />LOLOUNPTI<br />
Pollution<br />Air	- sulfur & coal<br />		- Traffic in major cities (Beijing, Korea,     	   etc.)<br />		- gas pollutants...
Water Pollution<br />Two most common water pollutants:<br />Solid waste<br />Untreated wastewater from industries and fact...
Water Pollution<br />Freshwater<br />Pollution caused by rapid urbanization and industrialization<br />Industrial effluent...
Water Pollution<br />Freshwater<br />Siltation<br />Accumulation of fine-grained sandy sediment carried by water<br />	 t...
Clearing of forest trees <br />Loss of natural habitat <br /> flora and fauna endangered<br />Causes of deforestation:<br...
North Asia: environmental problems<br />Pollution: due to waste<br />	- radioactive uranium plants in Kazakhstan<br />	- w...
The importance of ecological balance in asia<br />
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Lesson 3 (environmental problems in asia)

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Transcript of "Lesson 3 (environmental problems in asia)"

  1. 1. ENVIRONMENTAL PROBLEMS IN ASIA<br />
  2. 2. Environmental Problems in Asia<br />Two major factors:<br />Unparalleled economic development of the different countries in Asia<br />Incessant increase of human population<br />
  3. 3. Desertification<br />Salinization<br />Alkalization<br />Intensified use to meet food supply needed<br />
  4. 4.
  5. 5.
  6. 6.
  7. 7. Contamination<br />Problems in waste disposal<br />Rapid population growth<br />
  8. 8. Land degradation<br />AAZLINNOTISI<br />SALINIZATION<br />ZLAAKATNILOI<br />ALKALIZATION<br />NRDSCEIEIFIATTO<br />DESERTIFICATION<br />Remember SAD<br />
  9. 9. Salinization and Alkalization<br />When salts come to the surface of the land or are carried in by water<br />When water well are overused, the water table lowers and saltwater or brackish water start to permeate<br />Bangladesh<br />
  10. 10. Desertification<br />Transformation of fertile land into a desert through soil erosion or overcultivation<br />If it persists  will bring about serious health hazards; food scarcity, dust storms<br />China<br />
  11. 11. Overgrazing<br />
  12. 12. As the size of animal herds increases, more pressure is wielded on the grazing lands<br />Iraq: sustains 11 million sheep which exceeds the lands’ grazing capacity<br />
  13. 13. ZIIBRANNAUTO<br />URBANIZATION<br />
  14. 14. Urbanization in Asia<br />Led to the proliferation of depressed or slum areas<br />
  15. 15.
  16. 16. SWEAT AISSODLP<br />WASTE DISPOSAL<br />
  17. 17. Problem on Solid waste disposal<br />Two types of wastes:<br />Domestic<br />Industrial<br />Health risks, degradation of the environment<br />
  18. 18. Loss of Biodiversity<br />Introduction of non-indigenous species of flora and fauna in a particular region<br />Pollution of soil, water and air<br />Rapid growth of the population<br />Intensification of the use of land<br />Deforestation<br />Exploitation of natural resources<br />? <br />
  19. 19. POLLUTION<br />LOLOUNPTI<br />
  20. 20. Pollution<br />Air - sulfur & coal<br /> - Traffic in major cities (Beijing, Korea, etc.)<br /> - gas pollutants affect the quality of air<br /> - lead to respiratory diseases<br />
  21. 21.
  22. 22. Water Pollution<br />Two most common water pollutants:<br />Solid waste<br />Untreated wastewater from industries and factories<br />Marine Water:<br />Oil spills<br />Residues of pesticides<br />Red tide <br /> dinoflagellates<br />  may lead to poisoning of people<br />
  23. 23. Water Pollution<br />Freshwater<br />Pollution caused by rapid urbanization and industrialization<br />Industrial effluents, heavy chemicals and solid wastes  directly released to inland bodies of water<br />Mine tailings (rejected materials from mining processes)<br />Siltation <br />
  24. 24. Water Pollution<br />Freshwater<br />Siltation<br />Accumulation of fine-grained sandy sediment carried by water<br />  two main causes:<br /> 1. Deforestation<br /> 2. Soil erosion<br />Tonle Sap<br />
  25. 25. Clearing of forest trees <br />Loss of natural habitat <br /> flora and fauna endangered<br />Causes of deforestation:<br />Commercial logging<br />Slash and burn agriculture<br />Cutting down of trees for fuel wood and forest fires<br />NEODFTESAROTI<br />DEFORESTATION<br />
  26. 26. North Asia: environmental problems<br />Pollution: due to waste<br /> - radioactive uranium plants in Kazakhstan<br /> - waste dumped in rivers: threaten water source<br /> - extensive soil erosion<br />Uranium radioactivity causes mutations and growth of cancer cells<br />Uzbekistan’s water is under radioactive threat<br />
  27. 27. The importance of ecological balance in asia<br />
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