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

The pie chart displays the particular reasons for the unproductiveness of agricultural farms. Whilst, the table illustrates how the three regions are affected by

land

degradation

during the period of 1990s. In general, over-grazing, deforestation, and

over-cultivation

are the major causes of

land

degradation

on a global scale, but the motives behind less productive

land

in several regions vary. During the period of 1990s, over-grazing of livestock was the most vital factor accounting for 35% of

land

being affected by

this

particular cause, followed by deforestation (30%),

over-cultivation

of specific crops (28%), and the remaining 7% are made up by other factors.

Moreover

,

Europe

had the highest total of

land

degraded accounting for 23% followed by Australia and New Zealand at about 13%, and the lowest was North

America

in specific of total

land

decreased was 5%. On

one

Correct article usage

the one

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hand, deforestation was the most significant factor in

land

degradation

in

Europe

(9,8%) compared to Oceania (1,7%) and North

America

(0,2%). In terms of

over-cultivation

of certain crops was the main cause of

land

degradation

in

Europe

accounting for 7.7%, compared to North

America

(3.3%) and interestingly, there was no case of

land

degradation

caused by

over-cultivation

in Oceania.

On

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In

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the

last

region, the main cause of

land

degradation

in Oceania was over-grazing of livestock with a total of 11.3% of

land

affected in

this

way, followed by

Europe

just about 5.5% and the least affected

of

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over-grazing in

land

degradation

was North

America

about 1.5% of total

land

affected.