From soil to land, from functions to uses, which land policy?

Soil is perhaps the most vital and, paradoxically, the most misunderstood of all the components of terrestrial 
ecosystems. Its importance lies in its multiple functions, which are essential for our planet and for those it shelters: biomass production, carbon storage, water purification and reservoir, a place of life for a rich and diversified biodiversity..., all functions that create its fertility, the source of most of our food. Too often considered as an unlimited resource, soil is subject to numerous stresses due to human activities, being artificialised, dug up, polluted, etc.