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

degradation

that result in less productivity of agricultural practices worldwide.

Moreover

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

Overall

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

land

degradation

. Deforestation is the second most crucial cause of

this

.

According to

the table, Europe had the largest amount of total

land

degradation

during the 1990s.

However

, in North America, total

land

degradation

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

degradation

of

land

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

this

with 30%.

Furthermore

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

land

degradation

, respectively. Considering the table, the proportion of

land

degradation

in Europe was the highest at 23%,

while

the percentage of total

land

degradation

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

land

degradation

in Oceania with 0%.