According to the United Nations Environment Programme, by 2014 approximately 23 percent of the earth’s usable land was degraded, a situation that poses a threat to agricultural production around the world. The introduction of minerals, metals, nutrients, fertilizers, pesticides, bacteria, and pathogens suspended in topsoil runoff into waterways is a significant source of water pollution and is a threat to fisheries, wildlife habitats, and drinking-water supplies. The introduction of soil... więcej

Salem Press Encyclopedia, 2023. 3p.