Overall, over-feeding and deforestation are the main causes of declining agricultural productivity. Deforestation, over-grazing, over-cultivation affected the European region the most. To begin with, over-feeding of animals accounted for 35% worldwide. Deforestation formed 30% and over-cultivation for 28%. Other causes comprised 7%. North America did not show a high percentage of any degredation. Over-cultivation formed 3, 3% but this percentage was lower than in other regions. Total land degraded accounted 5% in North America. Regarding to Europe, it should a high percentage of all degradation. For example, deforestation was 9, 8%, iver-cultivation was 7, 7%, over-grazing was 5, 5% in 1990s. Total land degraded was 23%. Ocenia showed a high oercentage for only one reason. Over-grazing accounted 11, 3%. Total land degraded 13% in 1990s
Overall
, over-feeding and
deforestation
are the main causes of declining agricultural productivity.
Deforestation
, over-grazing, over-cultivation
affected
the European region the most. To
begin
with, over-feeding of animals accounted for 35% worldwide.
Deforestation
formed 30% and over-cultivation for 28%. Other causes comprised 7%. North America did not
show
a high percentage of any
degredation
. Over-cultivation formed 3, 3%
but
this percentage was lower than in other regions. Total land degraded accounted 5% in North America.
Regarding to
Europe, it should a high percentage of all degradation.
For example
,
deforestation
was 9, 8%,
iver-cultivation
was 7, 7%, over-grazing was 5, 5%
in 1990s
. Total land degraded was 23%.
Ocenia
showed
a high
oercentage
for
only
one reason. Over-grazing accounted 11, 3%. Total land degraded 13%
in 1990s