The pie chart shows the main causes of land degradation around the world and how much each factor contributes. Overall, land degradation is mainly caused by three factors, with over-grazing being the largest contributor.
Over-grazing accounts for 35% of global land degradation, making it the most significant cause. This suggests that keeping too many animals on the same land can damage the soil and reduce its quality. Deforestation is the second biggest cause, responsible for 30% of the total. Cutting down large areas of forest often leads to soil erosion and makes the land less productive. Over-cultivation contributes slightly less, at 28%. This shows that farming the land too intensively without proper management can also result in land degradation.
Other causes make up only 7% of the total figure, which is much lower compared to the main factors. In conclusion, the chart indicates that human activities related to agriculture and land use are the major reasons for worldwide land degradation, especially over-grazing.