Region is a geographical term that is used in various ways among the different
branches of geography. In general, region medium-scale area of land or water, smaller than the whole areas of interest (which
could be, for example, the world, a nation, a river basin, mountain range, and so on), and larger than a specific site or
location. A region can be seen as a collection of smaller units (as in "the New England states") or as one part of a larger whole
(as in "the New England region of the United States").
Regions are areas and or the spaces used in the study of geography. A region can be defined by physical characteristics, human
characteristics and functional characteristics.
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, ecoregion is a term used in environmental geography, cultural region in cultural geography, bioregion in Biogeography, and so on. The field of geography that studies regions themselves is called Regional geography.
Regions are conceptual constructs and, thus, may vary among cultures and individuals.
Natural regions
In the fields of physical geography, ecology,
biogeography, zoogeography, and environmental geography, regions tend to be based on natural features such as ecosystems or biotopes, biomes,
drainage basins, mountain ranges,
soil types, and so on.
Ecoregions
Many systems of deleting ecoregions have been created. The World Wide Fund for Nature (WWF) has been active in creating one of the more recent and
comprehensive systems. In this system, ecoregions are part of a nested hierarchy of ecological regions of different scales. Small
units are called sites, micro-ecosystems, landtypes, and land units, among other terms. Small
units are grouped into larger units called landscape mosaics, meso-ecosystems, landtype associations, and subregions, among other
terms. These in turn are grouped into larger units called variously regions, ecoregions, provinces, divisions, domains, zones,
ecozones, kingdoms, and so on.
Hydrological regions
The fields of hydrology and hydrography involve the
study and description of water in the environment. Surface-water hydrology
focuses on streams, lakes, wetlands, and other kinds of surface water (as opposed to
groundwater). Hydrology is a broad field with many topics of study, including the
delineation of water-based regions.
There are many systems for defining surface water regions. A basic type of stream-based region is the drainage basin, or watershed. In some cases, drainage basins are directly linked to cultural and
political regions. For example, the Hudson Bay drainage basin was defined politically as
Rupert's Land, the historic territory of the Hudson's Bay Company. Boundaries between drainage basins, called water divides, are frequently used as political boundaries.
Hydrologic Units
The drainage basin concept is expanded upon in hierarchical systems of hydrologic units. In the United States, an
effort is being made to delineate hydrologic units in a six level hierarchy covering the entire country and adhering to a
standard called the "Federal Standard for Delineation of Hydrologic Unit Boundaries". The six nested levels of hydrologic unit
regions are named, from largest to smallest, regions, subregions, basins, subbasins, watersheds, and subwatersheds. The system
defines 21 hydrologic unit (HU) regions in the United States, 222 HU subregions, 352 HU basins, and 2,149 HU subbasins. The
delineation of 5th level watersheds and 6th level subwatersheds is not complete, but estimates predict about 22,000 watersheds
and 160,000 subwatersheds in the United States.
All of these HU regions are given a numeric ID and a name. An example of the names and nesting hierarchy is:
- Region: Pacific Northwest Hydrologic Region (ID 17)
- Subregion: Lower Snake Subregion (ID 1706; size 35,200 square miles)
- Basin: Lower Snake Basin (ID 170601; size 11,800 square miles)
- Subbasin: Imnaha Subbasin (ID 17060102; size 855 square miles)
- Watershed: not yet delineated, but there are 5-15 watersheds per subbasin
- Subwatershed: not yet delineated, but there are 5-15 subwatersheds per watershed
Groundwater regions
Groundwater-based regions include aquifers. While aquifers are hydrographic regions in their
own right, in some cases they are closely related to social, cultural, economic and land-use regions. Examples of such aquifers
include the Ogallala Aquifer, which supports a vast region of irrigated farmland in the
Great Plains; the Edwards Aquifer of
Central Texas; the Guaraní Aquifer of central
South America, including the Triple Frontier region; and the Great Artesian Basin, which is made up of several aquifers and provides water for inland eastern
Australian regions such as the Murray-Darling Basin.junaid
Physiographic regions
Regions defined based on landform characteristics are called "physiographic" or "geomorphic" regions. Physiography involves
the delineation and description of regions from the viewpoint of geomorphology. Geologist
Nevin Fenneman defined a classic three-level hierarchical system of physiographic regions for the United States in 1946. The
regions are called divisions, provinces, and sections. For example, there are 8 large physiographic divisions, such as the Canadian
Shield and the Interior Plains. These are subdivided into provinces and sections.
The Appalachian Highlands division, for example, contains the Valley and Ridge province, which in turn contains three sections,
the Tennessee section, Middle section, and Hudson section. The Valley and Ridge province approximately corresponds to the more
general region known as the Ridge-and-valley Appalachians.
Palaeogeographic regions
Palaeogeography is the study of ancient geologic environments. Since the physical
structures of the Earth's surface have changed over geologic time, palaeogeographers have coined various names for ancient
regions that no longer exist, from very large regions such as the supercontinents Rodinia,
Pangaea, and Pannotia, to relatively small regions like
Beringia. Other examples include the Tethys
Ocean and Ancylus Lake. Palaeogeographic continental regions that include
Laurentia, Proto-Laurasia, Laurasia, Euramerica (the "Old Red Continent"), and Gondwana.
Historical regions
-
The field of historical geography involves the study of human history as it
relates to places and regions, or, inversely, the study of how places and regions have changed over time.
D. W. Meinig, a historical geographer of America, describes many historical regions in
his book The Shaping of America: A Geographical Perspective on 500 Years of History. For example, in identifying European
"source regions" in early American colonization efforts, he defines and describes the "Northwest European Atlantic Protestant
Region", which includes sub-regions such as the "Western Channel Community", which itself is made of sub-regions such as the
"English West Country" of Cornwall and Devon.
In describing historic regions of America, Meinig writes of "The Great Fishery" off the coast of Newfoundland and New England,
an oceanic region that includes the Grand Banks. He rejects regions traditionally used in
describing American history, like New France, "West Indies", the Middle Colonies, and the individual colonies themselves (Province
of Maryland, for example). Instead he writes of "discrete colonization areas", which may be named after colonies, but
rarely adhere strictly to political boundaries. Historic regions of this type Meinig writes about include "Greater New England"
and its major sub-regions of "Plymouth", "New Haven shores" (including parts of Long Island), "Rhode Island" (or "Narragansett
Bay"), "the Piscataqua", "Massachusetts Bay", "Connecticut Valley", and to a lesser degree, regions in the sphere of influence of
Greater New England, "Acadia" (Nova Scotia), "Newfoundland and The Fishery/The Banks".
Other examples of historical regions include Iroquoia, Ohio Country, Illinois Country, and Rupert's Land.
Tourism regions
Tourism geography is the study of tourism and travel as it relates to places.
Regions are studied as places of tourist origin as well as tourist destination. From the perspective of tourism geography, a
regions like the Lake District of England may receive more attention than its political
region of Cumbria, or New Zealand's Fiordland region more
than Southland Province. For example, the policy used by the Wikitravel guide
discourages the use of U.S. counties as guide subjects, in favor of geographic or metropolitan regions.
In ecotourism, regions are often described in terms more environmental than political,
such as the Serengeti region.
Other examples of tourism regions include the Loire Valley in France, Cinque Terre in Italy, Cappadocia in Turkey, and the Great Barrier Reef in Australia.
Natural resource regions
Natural resources often occur in distinct regions. Natural resource regions can be a
topic of physical geography or environmental geography, but also have a strong element of human geography and economic geography.
A coal region, for example, is a physical or geomorphological region, but its development and exploitation can make it into an
economic and a cultural region. Some examples of natural resource regions include the Rumaila
Field, the oil field that lies along the border or Iraq and Kuwait and played a role in the Gulf War; the Coal Region of Pennsylvania, which is a historical region as
well as a cultural, physical, and natural resource region; the South Wales
Coalfield, which like Pennsylvania's coal region is a historical, cultural, and natural region; the Kuznetsk Basin, a similarly important coal mining region in Russia; Kryvbas, the economic and iron ore mining region of Ukraine; and the James
Bay Project, a large region of Quebec where one of the largest hydroelectric systems in the world has been developed.
Religious regions
Sometimes a region associated with a religion is given a name, like Christendom, a term
with medieval and renaissance connotations of Christianity as a sort of social and political polity. The term Muslim world is sometimes used to refer to the region of
the world where Islam is dominant. These broad terms are very vague when used to describe regions.
Within some religions there are clearly defined regions. The Roman Catholic
Church, the Church of England, the Eastern Orthodox Church, and others, define ecclesiastical regions with names such as
diocese, eparchy, ecclesiastical provinces, and parish.
For example, the United States is divided into 32 Roman Catholic ecclesiastical provinces. The Lutheran Church - Missouri Synod is organized into 33 geographic "districts", which are
subdivided into "circuits" (the Atlantic District (LCMS), for example).
The Church of Jesus Christ of Latter-day Saints uses
regions similar to dioceses and parishes, but uses terms like ward and
stake.
Political regions
In the field of political geography regions tend to be based on political units
such as sovereign states; subnational units such as provinces,
counties, townships, territories, etc; and multinational groupings, including formally defined units such as
the European Union, the Association of Southeast Asian Nations, and NATO,
as well as informally defined regions such as the Third World, Western Europe, and the Middle East.
Local administrative regions
There are many relatively small regions based on local government agencies. Sometimes these small political regions are called
districts or areas, and sometimes regions. In general, they are all regions in the general sense of being bounded spatial units.
Examples include electorial districts such as Washington's 6th
congressional district and Tennessee's 1st congressional
district; school districts such as Granite School District and
Los Angeles Unified School District; economic districts such as the
Reedy Creek Improvement District; metropolitan areas such as the
Seattle metropolitan area, and metropolitan districts such as the
Metropolitan Water Reclamation District of Greater
Chicago, the Las Vegas-Clark County Library District, the
Metropolitan Police Service of Greater
London, as well as other local districts like the York Rural Sanitary
District, the Delaware River Port Authority, the Nassau County Soil and Water Conservation District, and
C-TRAN.
Administrative regions
The word "region" is taken from the Latin regio, and a number of countries have borrowed
the term as the formal name for a type of subnational entity (eg, the
región, used in Chile). In English, the word is also used as the conventional translation for equivalent terms in other languages
(e.g., the область (oblast), used in
Russia alongside with a broader term регион).
The following countries use the term "region" (or its cognate) as the name of a type of
subnational administrative unit:
The Canadian province of
Québec also uses the "administrative region" (région administrative).
Scotland had local government
regions from 1975 to 1996.
In Spain the official name of the autonomous community of
Murcia is Región de Murcia. Also, some single-province autonomous communities
such as Madrid use the term región interchangeably with comunidad autónoma.
Two län (counties) in Sweden are officially called
'regions': Skåne and Västra Götaland, and there
is currently a controversial proposal to divide the rest of Sweden into large regions, replacing
the current counties.
The government of the Philippines uses the term "region" (in
Filipino, rehiyon) when it's necessary to group provinces, the primary
administrative subdivision of the country. This is also the case in Brazil which groups its
primary administrative divisions (estados; "states") into grandes regiões (greater regions) for statistical purposes, while Russia uses экономические районы
(economic regions) in a similar way, as does Romania and Venezuela.
The government of Singapore makes use of the term "region" for its own administrative purposes.
The following countries use an administrative subdivision conventionally referred to as a region in English:
China has five 自治区 (zìzhìqū) and two 特別行政區 (or 特别行政区; tèbiéxíngzhèngqū) which are
translated as "autonomous region" and "special administrative region", respectively.
Traditional or informal regions
The traditional territorial divisions of some countries are also commonly rendered in English as "regions". These informal
divisions do not form the basis of the modern administrative divisions of these countries, but still define and delimit local
regional identity and sense of belonging. Examples include:
Geographical regions
A region can also be used for a geographical area; with this usage, there is an implied distinctiveness about the area that
defines it. Such a distinction is often made on the basis of a historical, political, or cultural cohesiveness that separates the
region from its neighbours.
Geographical regions can be found within a country (e.g., the Midlands, in England), or transnationally (e.g., the Middle East).
Similarly, the United Nations Statistics Division has devised a scheme for classifying
macrogeographic regions (continents), continental subregions, and selected socioeconomic
groupings.
Examples of geographical regions
Military usage
In military usage a region is shorthand for the name of a military formation
larger than an Army Group and smaller than an Army
Theater or simply Theater. The full name of the military formation is Army Region. An Army Region usually consists of
between two and five Army Groups. The size of an Army Region can vary widely but is generally somewhere between about 1 million
and 3 million soldiers. Two or more Army Regions could make up an Army Theater. An Army Region would typically be commanded by a
full General (US four stars), a Field Marshal or
General of the Army (US five stars), Generalissimo (Soviet Union) or General of the Armies (US
six stars), or by general officers holding ranks equivalent to six stars (for those nations that have had these generals). Due to
the large size of this formation, its use is rarely employed. Some of the very few examples of an Army Region would be each of
the Eastern, Western, and southern (mostly in Italy) fronts in Europe during World War II.
The military map symbol for this type of formation (see Military organization and
APP-6A) is identified by the use of six Xs just above the map symbol.
See also
External links
References
- Bailey, Robert G. (1996) Ecosystem Geography. New York: Springer-Verlag. ISBN 0-387-94586-5
- Meinig, D.W. (1986). The Shaping of America: A Geographical Perspective on 500 Years
of History, Volume 1: Atlantic America, 1492-1800. New Haven: Yale University Press. ISBN 0-300-03548-9
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