The two
illustrate the proportion of various types of causes affecting
in the world. Overall, the most significant reasons is over-grazing in worldwide.
, if we separate from different regions, they will not totally be the same. It was indicated that each region had a special majority of
during the 1990s.
In
of the cause of global
, over-grazing is considered as the majority which accounts for 35% comparing to deforestation and
with 30% and 28% respectively.
, regarding to the table, it was a bit different for the major reason of
degraded from each region in the 1990s. In North America, the main reason was
which constituted 3.3%, while the less important impacts of
were minimal, with 0.2% and 1.5
. In Europe, deforestation was estimated to the most serious aspect (9.8%), and the rest of them accounted for 7.7% (
) and 5.5% (over-grazing). The highest percentage of the impact was over-grazing (11.3%) in Oceania.
, there was no
and a little essential element (deforestation) which provided 1.7%.
In conclusion, Europe is classified as the most serious in
(23%) between other two countries (5% and 13%).
, there is the highest percentage in two areas of farmland degraded (9.8% and 7.7%)
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