The graphs illustrate data on the main factors of worldwide land degradation and how three regions in the world were influenced by these mentioned causes.
Overall, it can be seen that over-grazing was the major reason for land degraded worldwide as well as in Oceania while land in Europe and North America became less productive mainly because of deforestation and over-cultivation respectively.
The pie chart shows that amongst 4 causes of soil degradation, animal grazing accounted for the largest proportion with 35%, followed by the figure for deforestation and over-cultivating, with 30% and 28% respectively. Moreover, other reasons constituted 7% to the loss of land fertility, which was a fraction of that for over-grazing.
In the table, it is notable that Europe was the region with largest proportion of total land degraded (23%), followed by Oceania and North America, with 13% and 5% respectively. As the graph shows, land in Europe was mainly destroyed by trees clearance, with 9.8%, doubling the figure for over-grazing. It is clearly shown that the problem with over-grazing was especially serious in Oceania, resulting in 11.3% of its land unsuitable for agriculture, which was nearly ten times higher than the figure for deforestation. It is also shown from the table that whereas there was not a fraction of over-cultivated land in Oceania being damaged, over-cultivation was responsible for half of land degraded in North America (3.3%). In this area, the proportion of both over-grazing and deforestation was seen to be not remarkable, at 1.5% and 0.2% respectively. The graphs illustrate data on the main factors of worldwide land degradation and how three regions in the world were influenced by these mentioned causes.
Overall, it can be seen that over-grazing was the major reason for land degraded worldwide as well as in Oceania while land in Europe and North America became less productive mainly because of deforestation and over-cultivation respectively.
The pie chart shows that amongst 4 causes of soil degradation, animal grazing accounted for the largest proportion with 35%, followed by the figure for deforestation and over-cultivating, with 30% and 28% respectively. Moreover, other reasons constituted 7% to the loss of land fertility, which was a fraction of that for over-grazing.
In the table, it is notable that Europe was the region with largest proportion of total land degraded (23%), followed by Oceania and North America, with 13% and 5% respectively. As the graph shows, land in Europe was mainly destroyed by trees clearance, with 9.8%, doubling the figure for over-grazing. It is clearly shown that the problem with over-grazing was especially serious in Oceania, resulting in 11.3% of its land unsuitable for agriculture, which was nearly ten times higher than the figure for deforestation. It is also shown from the table that whereas there was not a fraction of over-cultivated land in Oceania being damaged, over-cultivation was responsible for half of land degraded in North America (3.3%). In this area, the proportion of both over-grazing and deforestation was seen to be not remarkable, at 1.5% and 0.2% respectively.