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© Boardworks Ltd 2012 1 of 8 This icon indicates that the slide contains activities created in Flash. These activities are not editable. For more detailed.

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Presentation on theme: "© Boardworks Ltd 2012 1 of 8 This icon indicates that the slide contains activities created in Flash. These activities are not editable. For more detailed."— Presentation transcript:

1 © Boardworks Ltd 2012 1 of 8 This icon indicates that the slide contains activities created in Flash. These activities are not editable. For more detailed instructions, see the Getting Started presentation. These icons indicate that teacher’s notes or useful web addresses are available in the Notes Page. Brazil Case study

2 © Boardworks Ltd 2012 2 of 8 Key Questions How has Brazil been affected by deforestation?

3 © Boardworks Ltd 2012 3 of 8 Brazil is the largest country in South America at over 3 million square miles. Brazil has both tropical and subtropical climates, and its vegetation is as varied as the climate. Brazil has tropical rainforests, subtropical rainforests and grasslands. Lowlands make up nearly half of Brazil. By far the largest lowland is the Amazon Basin. The Amazon is the second longest river in the world, after the Nile, and carries the greatest volume of water of any river in the world. The physical geography of Brazil

4 © Boardworks Ltd 2012 4 of 8 The US Environmental Protection Agency defines deforestation as “the permanent removal of standing forests”. Look at this graph. How have the levels of deforestation changed between 1988 and 2012? What might have caused these changes? Deforestation

5 © Boardworks Ltd 2012 5 of 8 Causes of deforestation

6 © Boardworks Ltd 2012 6 of 8 The impact of deforestation

7 © Boardworks Ltd 2012 7 of 8 Subsistence cropping and cash cropping Subsistence cropping is when all or most of the crops grown by a farmer are used to feed the farmer and his family. Cash cropping is when crops are grown to be sold for a profit. In Brazil, land which was used for subsistence cropping is increasingly being used for cash cropping.

8 © Boardworks Ltd 2012 8 of 8 Negative impactsPositive impacts Exporting these crops can bring more money into Brazil. Jobs are created. Less land is available to grow food for the local population. Water supplies may be used up on cash crops. Fertilizer sometimes enters the local water supply. Soil erosion is increased. The impact of cash cropping When cash crops replace subsistence crops there are positive and negative impacts.


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