Soil provides living things with food, fibres and fuel. It supports wildlife and rural and urban activities. From the end of the 1940s to the beginning of the 1990s, over 90% of the degradation of productive land was due to overgrazing, deforestation and inappropriate agricultural practices. These changes in the soil affect over 2 billion people, most of the 852 million people suffering from hunger in particular.
Soil can therefore not be ignored in ecosystem mechanisms.