From the ecological point of view, the naturally occurring flora and fauna of the region are likely to be influenced by its geographical and geological factors, such as soil and water availability, in a significant manner. Thus most natural regions are homogeneous ecosystems. Human impact can be an important factor in the shaping and destiny of a particular natural region.
The concept "natural region" is a large basic geographical unit, like the vast boreal forest region. The term may also be used generically, like in alpine tundra, or specifically to refer to a particular place.
The term is particularly useful where there is no corresponding or coterminous official region. The Fens of eastern England, the Thai highlands, and the Pays de Bray in Normandy, are examples of this. Others might include regions with particular geological characteristics, like badlands, such as the Bardenas Reales, an upland massif of acidic rock, or The Burren, in Ireland.
- Campos-Campos, Oswaldo; Cruz-Cárdenas, Gustavo; Aquino, Roque Juan Carrasco; Moncayo-Estrada, Rodrigo; Machuca, Martha Alicia Velázquez; Meléndez, Luis Arturo Ávila (2018). "Historical Delineation of Landscape Units Using Physical Geographic Characteristics and Land Use/Cover Change". Open Geosciences. 10 (1): 45–57. Bibcode:2018OGeo...10....4C. doi:10.1515/geo-2018-0004. ISSN 2391-5447.
- UNESCO - Natural and Cultural Landscape of Danube Region
- Natural Regions - The Canadian Encyclopedia
|Wikimedia Commons has media related to Natural regions.|