The Five Themes of Geography

Location, Place, Human-Environment Interaction, Movement, and Region

Location, the most basic theme of geography, can be expressed simply as where something is. Location can be either absolute or relative. Absolute location is more useful than relative location, but is harder to obtain. On the other hand, relative location is easily obtained but may be meaningless in many circumstances.

Relative location

Relative location is the position of something in relation to another place (usually where one currently is). Relative location is usually expressed in the form of directions, such as "go five miles north and make a right. Then head west for two miles". Relative location varies depending on where one is situated (unless it is relative to a fixed point). Although relative location is easy to obtain (usually requiring only the naked eye for a rough observation), the directions would mean nothing to someone who does not know where the starting point is.

Place

Place is a description of the characteristics that make a certain location distinct. Physical characteristics include landforms, vegetation, and climate. Human characteristics include culture, economy, and government. Every place has a unique combination of physical and human characteristics.

For example, the Great Pyramid of Giza has characteristics such as sand, heat, and the presence of a large pyramid. Chichen Itza also has a large pyramid, but its defining characteristics such as its lush vegetation and humid climate make it distinct from the Great Pyramid.

Human-environment interaction

Human-environment interaction also known as H.E.I., is the complex, interwoven bond between humans and nature. H.E.I. is split up into three major subcategories: adapt to, depend on, and modify. It explores humanity's use and modifications to the environment. Examples of human-environment interaction include bridges, dams, the mining industry, and any structures built by or destroyed by humans.

Movement

Movement is the travel of people, goods or ideas from one location to another. Examples of movement include America's westward expansion, the Information Revolution, and immigration. New devices such as the airplane and the Internet allow physical and ideological goods to be transferred long distances in short time intervals.

An example of movement is the railroad. Before its founding in the mid-1800s, a journey across long distances was tiring and difficult. Westward expansion in the United States was an example of these long, arduous journeys that often required several months to complete and were fraught with danger. However, upon the completion of the First Transcontinental Railroad, transportation between the East Coast and the West Coast took mere days to complete.

Regions

A region is any group of places that share at least one similar characteristic. Regions can be any size, and one location can be a part of multiple regions. For example, Detroit is a part of the American Midwest, the Michigan coastline, and the temperate zone.

There are three basic types of region: formal, functional, and vernacular. A formal region is typically defined by a government or administrative group for the purpose of defining boundaries; these can include straightforward political entities such as the United States, County Limerick, or Marseilles, and physical regions such as the Lake District, the Blue Ridge Mountains, or the Korea Strait. Formal regions are reasonably static. A functional region exists because a specific function (or action) is present within the spatial area of the region (for example, an area covered by a particular sales force or a rail network. This form of a region ceases to exist once the relevant function ceases. A vernacular region exists based upon people's perceptions. What is included in a region of this form, even the existence of the region, may be disputed; for example, the American South or the civilised world. While not subjective, vernacular regions are not wholly objective, but intersubjective.

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