The pie chart below shows the main reasons why agricultural land becomes less productive. The table shows how these causes affected three regions of the world during the 1990s.
The pie chart illustrates causes of Worldwide Land Degradation. The table indicates how these reasons affected North America, Europe and Oceania in 1990.
Overall, it is evident that distribution of causes provided in the pie chart was distributed almost equally, with deforestation, over-gazing and over-cultivation. In terms of the table, Europe witnessed the highest percentage while North America made up the smallest proportion throughout the period.
By looking at the pie chart, it can be seen that over gazing accounted for the significant proportion at 35%, being the largest share while the category “other” made up only 7%. Deforestation and over-cultivation were also one of the main causes of agricultural land’s less productivity, by the former remaining at 30% and the latter at 28%. The rate of deforestation in Europe was 9.8 whereas degredation of total land reached 23%. The proportions of over-cultivation and over-gazing were the smallest among the provided regions standing at 3.3 and 1.5, respectively.
In North America, the percentage of deforestation was the lowest at 0.2 while in Oceania it accounted for 1.7. In addition to this, the figure of over-cultivation in North America was 3.3, meanwhile, over-cultivation in Oceania the rate was negligible (0%). Ocenia’s overgazing percentage was the highest at 11.3, whereas North America showed the smallest proportion staying at 1.5. Eventually, degredation of total land in North America represented only 5% and in Oceania total land degraded for 13%.