Chapter 7 land supply


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Chapter 7 land supply

  1. 1. Chapter 7 Land SupplyReasons for land constraint Reasons demand for land o Population growth  Due to the rapid population growth in the last few years, more land is needed for human activities. o Increasing demand for housing  A growing population will lead to an increase in demand for housing. o Growth of industries  The need to provide jobs for a growing population is an important concern. o Development of transport system  As a country develops, more roads and railways have to be built.  A good transport network is important for the movement of goods and raw materials, as well as to enable workers to travel between their homes and workplace  E.g. In some cities, over 20% of the total land area is set aside for the transport facilities such as roads, railways, and car parks o Increasing demand for arable land  To produce food to feed their increasing populations, countries have to look for more arable land. o Increasing demand for recreational spaces  With more people, more recreational spaces will have to be provided.  E.g. swimming pool, public golf courses, theatres, parks and nature reserves P-T.H.R.I.F. Limited supply of land o Though land makes up 30% of the Earth’s surfaces, not all are usable. o Swamps, marshes and low-lying coastal areas are not usable. o Other uses of land are needed  E.g. water catchment areas, military purposesResponses to rising demand for land Increasing the price of land o Due to more users willing to pay a higher price for the available land, hence pushing up the price of the land. o Discourages some people from using the land, reducing demand.
  2. 2. Increasing the supply of land o Land Clearance  Increase the amount of land available for development Demolishing old buildings or through deforestation May have a negative impact on the environment o E.g. Deforestation cause many plants and animals to die or become extinct →affecting food chain o Land reclamation  Landfill Creating dry land from swampy areas, marshes and shallow parts of the sea. These areas are drained and filled with material like sand to from dry land. o E.g. Singapore Boat Quay and Marina Bay Area  Empoldering A method of reclaiming land from sea Though Empoldering is usually carried out in low-lying coastal areas, it can also be applied to areas that are further inland.  Reclaiming derelict land Usually caused by natural disasters, forest fires or human activities o Improper farming activities  Fertility of arable land may be lost due to improper farming practice. o Mining Activities  Mineral ores, vegetation and soil have to be removed  Heaps of mining wastes are left behind deep holes cause by mining, causing poisonous substance to contaminate the soil. Maximizing use of existing land o Maximizing urban land use o Mixed land use High Density Building Maximizing Agricultural land use Terracing Soil-less farmingConserving Land o As a country develops, demand for land increases for industries and housing and other facilities. o A country’s forests and other nature features should be protected