Changing Rates of Deforestation
- Deforestation is the felling and clearance of trees
- Brazil, Democratic Republic of the Congo, Bolivia and Indonesia are experiencing the highest levels of deforestation in the world
Choropleth map showing annual rates of deforestation in 2015
- Rates of deforestation steadily increased from 2001 to 2016
- Since 2016 there has been a slight decrease in deforestation of tropical forests
Annual rates of deforestation
Worked example
Study Figure 1, a graph showing global forest loss from 2011 to 2017
Using figure 1, calculate the mean global forest loss from 2011 to 2017. Give your answer to one decimal place.
[1 mark]
- When asked to make a calculation and give the answer to one decimal place it is essential that you remember to do this or you will not gain the mark
Answer:
- 23.4 million hectares [1]
Exam Tip
When giving an answer to one decimal point you will need to round the number up or down. Remember if the second digit after the decimal point is 4 or less you round down. If the second digit is 5 or more you round up. For example,
- 23.3714 would become 23.4 because the second digit after the decimal point is 7
- 23.3314 would become 23.3 because the second digit after the decimal point is 3
