pages, 1.3 MB
pages, 1.3 MB

Deserts as Natural Systems:

  • Systems in physical geography: systems concepts and their application to the development of desert landscapes
  • Inputs, outputs, energy, stores/components, flows/transfers, positive/negative feedbacks and dynamic equilibrium
  • The concepts of landform and landscape, and how related landforms combine to form characteristic landscapes
  • The global distribution of mid + low latitude deserts and their margins (arid and semi-arid)
  • Characteristics of hot desert environments and their margins: climate, soils, vegetation (and their interaction)
  • Water balance and aridity index
  • The causes of aridity: atmospheric processes relating to pressure, winds, continentality, relief and cold ocean currents

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