Unit 12 responses to the rising demand for land


Published on

sec 2 unit 12 part 1

Published in: Education, Technology
1 Like
  • Be the first to comment

No Downloads
Total Views
On Slideshare
From Embeds
Number of Embeds
Embeds 0
No embeds

No notes for slide
  • Reflections ( $4000psf); Symphony Heights ($1300psf); HDB 5 rm ($466psf) HDB ¾ rm ($350psf)
  • Click on logo to view both videos
  • Unit 12 responses to the rising demand for land

    1. 1. CHONG BOON SECONDARY SCHOOL Lower Sec Geography Secondary Two Unit 12: Responses to the Rising Demand for Land COPY
    2. 2. Thinking Questions 1.Can we ‘make’ more land? COPY
    3. 3. Unit Objectives 1.Evaluate the effectiveness of different responses to increase land supply. COPY
    4. 4. Increasing Price of Land •How much is the cost of your home? •Cost PSF (per square feet) •HDB flat •Condominium in AMK •Condominium near Sentosa COPY
    5. 5. How much do you think this house cost?
    6. 6. The price mechanism •Controls the allocation of land use. •Process which determines the pricing of products. •Landuse price determines the type of use. •Land nearer to CBD is more expensive. (Central Business District) COPY
    7. 7. Opportunity Cost •The cost (money or non- monetary) of choosing a decision as opposed to another choice. •“The lunch dilemma” COPY
    8. 8. What is for lunch? I have $5, what
    9. 9. Cost of conservation •Conservation of historical building in Singapore has a high opportunity cost. •Valuable land space in CBD area. •Replacement with a new skyscraper will bring more profit. COPY
    10. 10. A conservation area in Singapore
    11. 11. Land Clearance •Deforestation: removal of forested areas for use by humans. •Residential / Commercial / Agricultural •Very rapid rate of deforestation •1850 (20 million sq km of rainforest) •2005 (9-12 million sq km of rainforest left) COPY
    12. 12. Deforestation Video
    13. 13. Commercial logging •Exploitation by large logging companies •Logging for wood to meet global wood demands • Furniture, housing, paper,. • Rising global wealth leads to higher demands for wood products COPY
    14. 14. Agricultural use •Higher global demand for meat •Need for land to do commercial ranching. •Forests cleared to give space for herding. •Commercial Farming (cash crops) •Oil Palm, Corn/Maize/Wheat, etc. COPY
    15. 15. Effects of Deforestation •Loss of Habitat (Animals) • Native animals lose habitat • Move nearer to humans, lead to conflict, hunted down. •Loss of Habitat (Plants) • Destroyed together with rainforest • Loss of plantlife that may have undiscovered potential COPY
    16. 16. Effects of Deforestation cont’ • Soil Erosion • Removal of rainforest leads to higher drainage • Rain brings the topsoil (fertile soil) away • Nutrients now loss and land unable to support plants. • Greenhouse effect • Rainforest helps to recycle Carbon Dioxide (CO2) into Oxygen • Loss of rainforest introduces more CO2 (a greenhouse gas) into the atmosphere. • This will lead to global warming. COPY
    17. 17. Maximising Land Use •There is a limit to reclaiming land. •Land use management is done with land use planning. •Urban and Rural land use COPY
    18. 18. Urban Land Use •Mixed land use • Combine residential and commercial use • Shophouses • SOHO (Small Office Home Office) COPY
    19. 19. Urban Land Use •High-density building • Skyscrapers and super skyscrapers • Saves ground space • Commonly found in Business Centres. COPY
    20. 20. Rural Land Use (Agriculture) •3 key ways to maximise arable land •Terracing •Soil-less farming •Irrigation COPY
    21. 21. Terracing •Converting hills into flat steps. •Cultivation carried on the steps. •Commonly done for wet rice in South East Asia COPY
    22. 22. Soil-less farming • High tech farming methods • Hydroponics • Plants grown by submerging their roots in nutrient solution. • No soil needed, if done in a greenhouse, artificial sunlight can be used. • Aeroponics • Plants grown by suspending them in the air and spraying nutrient solution onto the roots. • No soil needed, if done in a greenhouse, artificial sunlight can be used. COPY
    23. 23. Irrigation •Introduction of fresh water into drylands •Create arable land from desert areas. •Supplement (help) areas with seasonal / unreliable rainfall. •Enable double / multiple cropping. COPY
    24. 24. Land Conservation •Land as a nature reserve •Government Policies •Land Reclamation COPY
    25. 25. Nature Reserve • Protected land area • Flora and fauna (plants and animals) found inside are protected by law • Anti-poaching laws • Recognition of nature as part of the country’s natural heritage. • Bukit Timah Nature Reserve, Yellowstone National Park, etc. COPY
    26. 26. Government Policies •Government imposes landuse policies that restrict certain uses for conservation. •Valuable land is properly planned and used for development. •Less wastage of valuable land. COPY
    27. 27. Land Reclamation (Singapore) •Refer to image on pg 110. •Reclamation has taken place on all except North and North-West coast. •Offshore islands reclaimed to form larger islands / merge to form usable islands. COPY
    28. 28. Land Reclamation (Singapore) •Entire East Coast Park is reclaimed. •East Coast Parkway Expressway once sat in the sea. •Landfill method is used to reclaim land from the sea. COPY
    29. 29. Land Reclamation (overseas) •United Arab Emirates (Dubai) • The Palm Island Resort • Landfill method. • Palm tree shaped resort. COPY
    30. 30. Thinking again “Can we reclaim forever?” Singapore 2080
    31. 31. Mind-mapping time Landfill Method Increasing land supply Draining swamps Increasing price of land Reclaiming derelict land Conservation of land Urban land use Responses to the rising demand for land Empoldering Land reclamation Agricultural land use Maximising land use COPY