Soil degradation – chemicals

soil degrdation graphs

Types, degree and causes of global land degradation. © 2013 Nature Education

Soil and land degradation is caused by human mismanagement of soils, mostly due to agricultural activities. A report on the global assessment of soil degradation states that ‘the earth’s soils are being washed away, rendered sterile or contaminated with toxic chemicals at a rate that cannot be sustained’ ¬†Today almost a quarter of the world’s farmland is affected by serious degradation, up from 15% two decades ago. The Food and Agriculture Organisation (FAO) study indicates the world may currently be losing about 1% (50,000 sq kms) of its farmland annually due to a combination of degradation, urban sprawl, mining, recreation, toxic pollution and rising sea levels. [1] Continue reading