The pie chart illustrates the fundamental causes that surround the land for cultivation being less productive, while the table depicts the reasons for land degradation in three different regions across the world in the 1990s.
Overall, the pie chart spotlights the different factors affecting the degradation of land on a global perspective. Over-grazing of animals, the cutting down of trees, and over-cultivation of crops accounted for the majority proportion. Turning to the table, which enlightens the portion of land degraded by deforestation, over-cultivation, and over-grazing in North America, Europe, and the islands of Oceania in the 1990s.
Over-grazing of animals accounted for being the major factor in causing land degradation worldwide at 35%. It was then followed by deforestation and over-cultivation, at 30% and 28% respectively. Other causes which contributed towards making land less efficient were at 7%.
Moving towards the table, which reveals the quantity acquired by different problems affecting land degradation by their region. In Northern America, the total land degraded was least among the three regions at precisely 5%, and the peak was obtained by Europe where almost 10% of land was degraded by deforestation and under 8% by over-cultivation, achieving a total value of 23%. The Oceania region secured a nil amount in over-cultivation and 1.7% in deforestation; however, due to a significant 11.3% accumulated by over-grazing, the total sum value was at 13%.