The charts shows information about the reasons of degradation in soil in 3 differen parts in the world in 1990s. Summarise the information by selecting and reporting the main features, and make comparisons where relevant.

The pie chart illustrates the main causes of

land

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degradation

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that result in less productivity of agricultural practices worldwide.

Moreover

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, the table demonstrates the three areas in the world which were affected by these causes.

Overall

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, it can be seen that over-grazing of livestock is the most important reason for

land

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degradation

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. Deforestation is the second most crucial cause of

this

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.

According to

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the table, Europe had the largest amount of total

land

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degradation

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during the 1990s.

However

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, in North America, total

land

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degradation

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was the lowest amount. With regard to the pie chart, over-grazing plays the most critical role in the

degradation

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of

land

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with 35%. Cutting down trees is the second effective cause of

this

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with 30%.

Furthermore

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, over-cultivation and “other” categories are responsible for 28% and 7% of

land

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degradation

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, respectively. Considering the table, the proportion of

land

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degradation

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in Europe was the highest at 23%,

while

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the percentage of total

land

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degradation

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in North America was the lowest at 5% during the 1990s. It is worth noting that over-cultivation had no effect on

land

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degradation

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in Oceania with 0%.