Here are two charge whichare about worldwide and regional land gegradation. The pie chart shows thatthree basic reason as well as a small one cause the worldwide land degradation.
Over-grazinghas a most effective degree which is more than one-third reaching 35%. Althoughdeforestation do not reach the high level as over-grazing, it still cover about30%. The third one is over-cultiation. In spite of beingarranging behind over-cultivation only less 2% thandeforestation achieve 28%. Other unknow causes make up therest of 7%.
Thetable below indicates that different causes has different effacts to differentregion. According to this, Europe has suffered from land degradation mostly.9.8% landin Europe is at a disadvantage which is deforestion have far more than NorthAmerica’s 0.2 and oceania’s 1.7. The similar thing has happpened inover-cultivation. 7.7% in Europe, 3.3% in North America while 0% in Oceania. Butsomething change in over-grazing. Oceania is better in deforestation andover-cultivation, but 11.3% land suffer fromover-gazing which is nearly two times of the summation from North Amer andOceania. Howevver, total land degraded still have the most effective causes inEurope with 23% which is far more than North American 5% and oceation 13%.
Wecan see over-grazing has affected regional land mostly and Europe is the firstone which is affected by land degradation.