The United Nations General Assembly has declared 2015 the International Year of Soils to raise the awareness of the importance of soils for food security, clean water and other essential ecosystem functions. Soils are a hidden resource that we too often take for granted.
It takes between 100 years to 1,000 years to form one centimeter of healthy soil and only one to 10 years to destroy it. This valuable, but often unrecognized, resource is threatened by erosion, natural disasters, salinization, compaction, acidification and nutrient decline.