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saudi pivot irrigation.jpeg

Agriculture in Hot, Arid Areas


Examine the opportunities for agriculture in hot, arid areas, the distinction between aridity and infertility, the importance of irrigation and risk of salinization, and the processes and factors involved in desertification.

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Agriculture in Hot, Arid Areas


Examine the opportunities for agriculture in hot, arid areas, the distinction between aridity and infertility, the importance of irrigation and risk of salinization, and the processes and factors involved in desertification.

Desert Agriculture, Zagora, Morocco (Source)

What are the opportunities and challenges for agriculture in hot, arid areas? 

 

keywords

Define the following key words:

  • aridity
  • infertility
  • irrigation
  • salinization
  • leach (v)
 

TASK

  1. Read "Problems for Farming" - p 88 of the study guide
  2. What is negative water balance and how can this be overcome?
  3. Explain why desert soils are arid and infertile.
  4. What causes salinisation and what are its effects on plant growth?
 
 

case study: date production in the draa valley, morocco

 
 
 

TASK

  1. Watch and read the resources above.
  2. Create a case study document about date production in Morocco
  3. Include:
    • Map showing the location of named places of production
    • Data and facts about the date industry
 

 

desertification

Desertification is the degradation of land and vegetation, soil erosion and the loss of top soil and fertile land in arid, semi-arid and dry sub-humid areas, caused primarily by human activities and climatic variations
 
 
 

TASK

  1. Watch the video individually with headphones
  2. Pause to note key information, facts and data
  3. Read and make notes on the BBC article
  4. Make a copy of the flow chart below on A4 paper
  5. Add colour and illustrations
 
 

causes and development of desertification

 
 

CASE STUDY: desertification IN SENEGAL

 
 
 
 

acacia project, senegal

 
 
 

case study: DESERTIFICATION IN niger

 
 
 
 
 

TASSA METHOD IN NIGER

SUSTAINABLE FARMING IN THE SAHEL

 
 
 

greening the desert: ted talk

 
 

exam practice

"Agriculture in hot, arid areas inevitably results in desertification". Discuss this statement. (10 marks)

 

mark scheme

Candidates are expected to consider points on both sides of this question. The strongest responses may choose to challenge the statement, and may well conclude that while agriculture in such areas may result in desertification, such an impact is by no means inevitable but depends, in part, on the nature of the agriculture involved. Careful choice of crops, cultivation techniques and continuous monitoring may enable successful small-scale or commercial agriculture in hot arid areas. It is likely to be easier to avoid desertification in areas where irrigation is possible than in areas where, for financial, technological, or other reasons, irrigation is not possible.

Desertification is often the result of unsustainable farming, in which more minerals and nutrients are taken out of the soil than are replenished, or where the density of grazing animals exceeds the normal carrying capacity. Some experts also attribute desertification in some areas to on-going climatic change.

Answers that consider only one side of the question should not be credited above band D. It is expected that answers reaching bands E and F will offer supporting evidence and/or exemplification before arriving at a clear conclusion to the question.

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Mineral Extraction in Periglacial Areas


Examine the opportunities and challenges posed by permafrost and other characteristics of periglacial areas for resource development (mineral extraction and any associated settlement and communications).

Mineral Extraction in Periglacial Areas


Examine the opportunities and challenges posed by permafrost and other characteristics of periglacial areas for resource development (mineral extraction and any associated settlement and communications).

 
 
 
 
 

case study: mineral extraction in Alaska

 
 

READING

 
 

advanced reading

Arlit uranium mine niger resources.jpg

Mineral Extraction in Hot, Arid Areas


Examine the opportunities and challenges posed for resource development (mineral extraction and any associated settlement and communications).

Mineral Extraction in Hot, Arid Areas


Examine the opportunities and challenges posed for resource development (mineral extraction and any associated settlement and communications).

 
Arlit uranium mine, Niger

Arlit uranium mine, Niger

 
 
 
 
 

global uranium reserves

 
 

uranium in niger facts

 

orphans of the sahara documentary

 

challenges for uranium extraction: health

 
 

case study: olympic dam mine, australia

olympic dam mine australia uranium.jpeg
 
 
 
 
 
ski trails whistler tourism.jpeg

Tourism in Extreme Environments


Examine the opportunities and challenges posed by the development of tourism and any associated settlement and communications in one type of extreme environment.

Examine the impacts of tourism on the environment, such as mass movements and erosion, land degradation, vulnerability to hazards, aesthetic change, water usage and waste disposal.

Tourism in Extreme Environments


Examine the opportunities and challenges posed by the development of tourism and any associated settlement and communications in one type of extreme environment.

Examine the impacts of tourism on the environment, such as mass movements and erosion, land degradation, vulnerability to hazards, aesthetic change, water usage and waste disposal.

Brainstorm opportunities and challenges for tourism in hot, arid areas and glacial/periglacial areas.

 

tourism in glacial areas

case study: alpine tourism in switzerland


 
  1. Draw a sketch map showing the location of Riederalp, Valais, Switzerland
 

swiss tourism industry

  1. Read this document and identify 5 facts about the Swiss tourism industry
  2. Create a factfile box in your notes.
 
 

alpine tourism - human impacts

 
 

climate change and alpine tourism