Writing task 1: Causes of land degradation

The pie chart indicates the percentage of farmland becoming less solid because of different reasons which are deforestation, over – cultivation and over – grazing. Besides that, the table shows the result of these causes in specific areas which are North America, Europe and Oceania by percentage in 1990s.

As can be seen, the main reasons making agricultural land become less solid were over – grazing and deforestation with 35% and 30%. Over – cultivation also transformed farmland into less productive, with 28%, which is four times of the percentage of farmland destroyed by other reasons.

According to the table, Europe is an area which had the biggest land become less productive with 23% of total Europe’s land, which is almost four times of total degraded land in North America, only 5%. In addition, the land affected by 3 main causes in Europe was higher than 2 other areas. Most land in Oceania was degraded by over – grazing with 11,3% of total land in this region.

In overall, the large amount of farmland was become less solid because of humans demand. Especially in Europe, the amount of less solid land was the biggest number among 3 regions.