Low land productivity and it's influence on region
The pie chart below displays the primary reasons behind low productivity of agriculture land while the table manifests how 3 regions of the world are impacted by these causes through 1990s.
It is noticeable from the pie chart that there were three main reasons behind land degradation, deforestation; over-cultivation; over-grazing. However, all of the mentioned factors contributed nearly with equal percentage. On the other hand, Europe has obviously suffered the most from land degradation while North America experienced the least with mentioned factors affected them in in various percentages.
Land degradation in 1990s was mainly a result of three different factors; deforestation; over-cultivation and over-grazing, yet these 3 factors contributed almost equally in degrading lands. To enumerate, over- grazing ranked 1st with the percentage of 35; deforestation was the 2nd with 30% value; over-cultivation with 28% and other insignificant minor causes with 7%.
In the light of these different factors, many places has been affected. Europe was the most place that suffered from land degradation with a total land degradation of 23% mainly due to deforestation 9.8%. On the contrary, North America experienced the least with 5% of its land suffered from degradation as a result of over cultivation 3.3% . However, Oceania, a large group of islands in the South Pacific including Australia and New Zealand, had no over-cultivation on its land but the total land degraded was 13% .