(d) Anthropogenic biomes, also known as “anthromes” describe the terrestrial biosphere in its contemporary, human-altered form using global ecosystem units defined by patterns of sustained direct human interaction. Ellis and Ramankutty delineate 21 an thropogenic biomes based on population density, land use and vegetation cover. The anthropogenic biomes are grouped into six major categories as dense settlements, villages, croplands,rangel and, forested and wild lands.