Geography SL
Geography SL
10
Chapters
152
Notes
Option A - Freshwater – Drainage basins
Option A - Freshwater – Drainage basins
Option B - Oceans & coastal margins
Option B - Oceans & coastal margins
Option C - Extreme Environments
Option C - Extreme Environments
Option D - Geophysical Hazards
Option D - Geophysical Hazards
Option E - Leisure, Tourism And Sport
Option E - Leisure, Tourism And Sport
Option F - The Geography Of Food & Health
Option F - The Geography Of Food & Health
Option G - Urban Environments
Option G - Urban Environments
Unit 1 - Changing Population
Unit 1 - Changing Population
Unit 2 - Global Climate - Vulnerability & Resilience
Unit 2 - Global Climate - Vulnerability & Resilience
Unit 3 - Global Resource Consumption & Security
Unit 3 - Global Resource Consumption & Security
IB Resources
Option C - Extreme Environments
Geography SL
Geography SL

Option C - Extreme Environments

Unlock the potential of agriculture in arid areas: strategies & crops that thrive

Word Count Emoji
651 words
Reading Time Emoji
4 mins read
Updated at Emoji
Last edited on 16th Oct 2024

Table of content

Hot arid areas & agriculture

Opportunities for agriculture

  • Long growing season due to heat and sunlight.
  • Exotic rivers, desalination, and irrigation can provide needed water for farming.
    • E.g., Oasis at Douz, Tunisia, produces dates, figs, and oranges.
    • In oil-rich countries like Saudi Arabia and UAE, desalination plants provide water, making hydroponics possible.

Challenges for agriculture

  • Lack of freshwater, abundant heat and sunlight, low rainfall, saline soil, dry winds, overgrazing, poor soil, and limited technology.
  • Negative water balance: the output from evapotranspiration and stores of water exceed the input from precipitation (pEVT > ppt).
  • Desert soils are arid and infertile due to low rainfall, high evapotranspiration, low organic content, thinness, lack of clay, and potential toxicity from soluble salts.

Sustainable agriculture approaches

  • Reduce herd size and pressure on limited vegetation.
  • Use solar panels for energy and animal dung for fertilizers.
  • Plant fodder for animals.
  • Use efficient irrigation methods (drip and sprinkler) and line irrigation channels with concrete.
  • Build check dams and diguettes to collect water.
  • Use salt-tolerant (halophytic) plants.

Semi-arid areas & drought-resistant fodder

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IB Resources
Option C - Extreme Environments
Geography SL
Geography SL

Option C - Extreme Environments

Unlock the potential of agriculture in arid areas: strategies & crops that thrive

Word Count Emoji
651 words
Reading Time Emoji
4 mins read
Updated at Emoji
Last edited on 16th Oct 2024

Table of content

Hot arid areas & agriculture

Opportunities for agriculture

  • Long growing season due to heat and sunlight.
  • Exotic rivers, desalination, and irrigation can provide needed water for farming.
    • E.g., Oasis at Douz, Tunisia, produces dates, figs, and oranges.
    • In oil-rich countries like Saudi Arabia and UAE, desalination plants provide water, making hydroponics possible.

Challenges for agriculture

  • Lack of freshwater, abundant heat and sunlight, low rainfall, saline soil, dry winds, overgrazing, poor soil, and limited technology.
  • Negative water balance: the output from evapotranspiration and stores of water exceed the input from precipitation (pEVT > ppt).
  • Desert soils are arid and infertile due to low rainfall, high evapotranspiration, low organic content, thinness, lack of clay, and potential toxicity from soluble salts.

Sustainable agriculture approaches

  • Reduce herd size and pressure on limited vegetation.
  • Use solar panels for energy and animal dung for fertilizers.
  • Plant fodder for animals.
  • Use efficient irrigation methods (drip and sprinkler) and line irrigation channels with concrete.
  • Build check dams and diguettes to collect water.
  • Use salt-tolerant (halophytic) plants.

Semi-arid areas & drought-resistant fodder

Unlock the Full Content! File Is Locked Emoji

Dive deeper and gain exclusive access to premium files of Geography SL. Subscribe now and get closer to that 45 🌟