Regional space
Introduction
The term region can refer to a "portion of territory"[1] with certain common characteristics such as climate, topography or administration.[1] Likewise, it can refer to the "geographical, historical, cultural and social characteristics"[1] of a nation. The region is also conceived as the product of a spatial classification; That is, it refers to the process of grouping elements into classes or categories, resulting in areas that are homogeneous within them and differentiated from the others. For example we can mention the climatic regions or productive regions.
It can be a specific area or extension of land larger than the subregions or subdivisions that constitute it, whether it is a continent such as Europe, Asia, America, Africa, as well as a part of said continent (Central Europe or South America), a country or group of countries, a basin "Basin (geographical feature)"), such as the Orinoco or Danube basin, a mountain range or mountain region, etc., and much larger than a specific place.
Thus, a region can be seen as the continuous set of smaller units (for example, "the countries of Latin America") or as the section of a larger whole (such as "the polar regions of the Earth"). Thus, the concept of region is inextricably linked to the concept of scale "Scale (cartography)"), so we can consider the existence of regions of very different sizes, from supranational regions (for example, European Community, Andean Region, etc.) to small regions or a small mountain valley.
Regions are defined abstractly by delimiting areas of one or more common characteristics, whether physical, human or functional. As a way of describing spatial areas, the concept of regions is important and widely used among the many branches of geography, each of which can describe areas in regional terms. For example, the term ecoregion is a term used in biogeography, cultural region in cultural geography, natural region in physical geography, among other examples. The study of regions themselves is the subject of regional geography.
In the territorial organization of many countries, the term region designates a political division of the territory of a State based on regional space") defined according to officially established criteria, which can generally be ethnic, demographic, historical, cultural, economic characteristics or special circumstances of climate, relief or topography, administration, government, etc.
In geometry, a region is a piece of the plane that is included between three or more lines.