The pie chart below shows the main reasons why agricultural land becomes less productive. The table below shows how these causes affected three regions of the world during the 1990s.

Two graphs illustrate information about global

land

degradation. The pie chart contains data about factors associated with lands being less efficient, and the table provides distributions of these factors and total erosion in three regions: North America, Europe, and Oceania in the 1990s.

Overall

,

it is clear that

over-grazing and deforestation were the main reasons for soil erosion with 35% and 30%, respectively.

Furthermore

, Europe had the highest

land

destruction with 23% of the total usable

whereas

North America held the minimum 5%. Noticeably, the highest and the lowest percentages were Deforestation in North America by 0.2% and over-usage of pasture lands by 11.3% in Oceania. Despite the major causes that resulted in

land

usage alternation, over-cultivating corps came next by 28%, and various other factors were responsible for only 7%.

On the other hand

, looking at the regional data on the topic, regarding Europe, the main elements contributing to

land

loss were increased velocity in forest destruction, foraging, and multiple-cultivating lands by 9.8%, 7.7%, and 5.5%, respectively.

In Addition

, Oceania had a slightly different condition, where agriculture had no impact,

whereas

over-grazing had the highest percentage at 11% and deforestation at just 1.7%.