The pie chart shows the main reason why agricultural land becomes less productive.

The charts illustrate the information on crucial causes of worldwide agricultural

land

degradation and each country's main reasons in North America,

Europe

and Oceania during the 1990s.

Overall

, over-grazing accounted for the largest proportion in

this

chart followed by

deforestation

while

other

Correct pronoun usage

others

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comprised the smallest.

Also

, the most degraded region was

Europe

.

Europe

's main reason was

deforestation

. Looking at the first graph,

it is clear that

over-grazing was the most serious reason

of

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for

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land

corruption at 35%.

However

, the ratio of

deforestation

and over-cultivation was roughly the same with

deforestation

at 30% and 28% each. The figure

of

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for

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Correct article usage

the other

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other

Correct pronoun usage

others

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was the smallest and it is 7 times as little as over-grazing.

According to

the second graph, North America had the least

land

deterioration among the three areas at 5%

while

Europe

was the most degraded at 23%.

Also

, the most significant reason was different

by

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apply

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regions

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region

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. North America was affected

from

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by

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over-cultivation at 3.3% and

Europe

's main cause of

land

degradation was

deforestation

at 9.8%.

Finally

, Oceania was mainly affected

from

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by

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over-grazing at 11.3%