Land cover being altogether the observed image of ecosystems and of the effects of land use, practical classification may put the emphasis either on vegetation forms or on landscape features shaped by land use. The general approach by FAO is that of a Land Cover Classification System (LCCS) made of a set of consistent rules and a software tool allowing the production of consistent classifications in a variety of different conditions. This is the basis of land cover classification.
The Land Cover classification scheme is part of the broader SEEA Common Framework (https://seea.un.org/sites/seea.un.org/files/seea_cf_final_en.pdf).
The same Land Cover Classes are used in the SEEA AFF (Agriculture, Forestry and Fisheries).