The term "rangeland" is rather nebulous, and there is no single definition of rangeland that is universally accepted by land managers, scientists, or international bodies (Lund, 2007; Reeves and Mitchell, 2011). Dozens and possibly hundreds (Lund, 2007) of definitions and ideologies exist because various stakeholders often have unique objectives requiring different information. For the purpose of describing the role of remote sensing in a global context, it is, however, necessary to provide definitions to orient the reader. The Food and Agricultural Organization (FAO) of the United Nations convened a conference in 2002 and again in 2013 to begin addressing the issue of harmonizing definitions of forest- related activities. Based on this concept, here rangelands are considered lands usually dominated by nonforest vegetation.

Reeves, Matthew C.; Washington-Allen, Robert A.; Angerer, Jay; Hunt, E. Raymond, Jr.; Kulawardhana, Ranjani Wasantha; Kumar, Lalit; Loboda, Tatiana; Loveland, Thomas; Metternicht, Graciela; Ramsey, R. Douglas. 2015. Global view of remote sensing of rangelands: Evolution, applications, future pathways [Chapter 10]. In: Land Resources Monitoring, Modeling, and Mapping with Remote Sensing. Boca Raton, FL: CRC Press/Taylor and Francis Group. p. 237-276.