The pie chart below shows the main reasons why agricultural land became less productive. the table shows how these causes affected 3 regions of the world during the 1990 S.

The first chart displays the major causes of global

land

degradation

. The second graph, how three regions of the world were affected by

deforestation

,

over-cultivation

, and over-grazing in the 1990s is depicted.

Overall

, the main reasons for worldwide

land

degradation

were allocated to over-grazing,

deforestation

, and

over-cultivation

respectively.

Moreover

, Europe had the highest share of farmland declaration than other regions.

According to

the first chart, the biggest reason for global

land

decoration was devoted to our grazing, which is 35

percent

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per cent

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.

Moreover

, 30 and 28 % of the world's degraded

land

accounted for

deforestation

and

over-cultivation

, respectively,

while

that of other firm

land

decoration, which is not clearly specified (7%). The second graph shows Europe had the greatest proportion of

degradation

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degraded

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land

during the 1990s,at 23%, and the main causes there were

deforestation

(approximately 10%) and

over-cultivation

(about 8%).

In contrast

, North America had a lower proportion of

land

degradation

at merely 5%, and the major reason for

this

were

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was

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3.3%, to a lesser extent over-grazing (1.5%). Despite the fact that

the

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apply

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over-grazing played the main role in

land

degradation

in Oceania, which was 11.3%;

over-cultivation

had no contribution to

land

degraded

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degradation

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.