Band 6+: The pie chart below represents the main reasons why Agricultural land becomes less productive. The bar chart show how these causes affected three regions of the world in the 1990s. Summarise the data by selecting and reporting the main features and make comparisons where relevant.

The provided charts illustrate the primary causes of agricultural land degradation globally and their impact on three region, North America, Europe, and Oceania, during the 1990s.

Overall, overgrazing was the main cause of land degradation globally, but based on the regional, its impact varies. Furthermore, over-grazing was the most significant factor in Oceania, while deforestation is the main cause in Europe, and over-cultivation is the primary issue in North America.

The pie chart showed that over-grazing was the most significant cause of land degradation worldwide, around 34%, followed by deforestation at 30% of the degradation. Over-cultivation was the third largest cause by 28%, while salinization was the least significant factor, only 8%.

The bar chart depicts a regional breakdown of these causes. In North America, over-cultivation was the dominant cause of land degradation at 3.3%, followed by over-grazing at 1.5% and deforestation at 1.7%. Europe shows a different fact, deforestation being the most significant cause at 9.8%, followed by over-cultivation at 7.7% and over-grazing at 5.6%. In Oceania, over-grazing was the primary cause of land degradation, around 10.8%, while deforestation and over-cultivation are insignificant.