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Nature and Perspectives AP Human Geography Review PowerPoint 1 of 8 Carl Sauer- Possiblism, cultural landscape UC Berkeley - focus on how people have transformed the natural landscape into a cultural landscape Five Themes of Geography In 1986 the Geography Education National implementation Project (GENIP) added two themes to three of Pattison’s “traditions” -location: position; situation of people and things -human/environmental interaction: reciprocal relationship b/w humans & env. -region: area on Earth’s surface marked by a degree of homogeneity (uniformity) of some phenomenon -place: uniqueness of a location (or similarity of two or more locales); phenomena within an area -movement: mobility of people, goods and ideas; phenomena between areas Theme #1: Location Ways to indicate location (position): 1) Maps: best way to show location and demonstrate insights gained through spatial analysis. 2) Place-name: a name given to a portion of the Earth’s surface (“Miami”). 3) Site: physical characteristics of a place; climate, water sources, topography, soil, vegetation, latitude, and elevation 4) Situation: the external locational attributes of a place; its relative location or regional position with reference to other nonlocal places. 5) Absolute location: latitude and longitude (parallels and meridians), mathematical measurements mainly useful in determining exact distances and direction (maps). 6) Relative location: location of a place relative to other places (situation), valuable way to indicate location for two reasons: a) Finding an unfamiliar place - by comparing its location with a familiar one (“Miami – 35 miles northwest of Cincinnati”). b) Centrality, understanding its importance (Chicago – hub of sea & air transportation, close to four other states; Singapore – accessible to other countries in Southeast Asia). 7) Distribution: arrangement of something across Earth’s surface. a) Density – frequency with which something occurs in an area. Arithmetic density – total number of objects (people) in an area. Physiologic density – number of people per unit area of agriculturally productive land. b) Concentration – extent of a feature’s spread over an area. Clustered – relatively close. Dispersed – relatively far apart. c) Pattern – geometric arrangement of objects. Theme #2: Human/Environmental Interaction 1) Cultural landscape – includes all human-induced changes that involve the surface and the biosphere. Carl Sauer: “… the forms superimposed on the physical landscape by the activities of man.” 2) Cultural ecology - the multiple interactions and relationships between a culture and the natural environment. 3) Environmental Determinism – human behavior, individually and collectively, is strongly affected by, and even controlled or determined by the environment 4) Possibilism – the natural environment merely serves to limit the range of choices available to a culture 5) Environmental Modification – positive and negative environmental alterations Theme #3: Region 1) Distinctive characteristics: a) area: defined spatial extent b) location: lie somewhere on Earth’s surface c) boundaries: sometimes evident on the ground, often based on specifically chosen criteria d) other: cultural (language, religion), economic (agriculture, industry), physical (climate, vegetation) 2) Three types of regions: a) Formal – (a.k.a. uniform, homogeneous), visible and measurable homogeneity (link to scale and detail) b) Functional – product of interactions, and movement of various kinds, usually characterized by a core and hinterland (e.g. a city and its surrounding suburbs) c) Perceptual – (a.k.a. vernacular), primarily in the minds of people (e.g. Sunbelt) 3) Regions can be seen in a hierarchy (vertical order, scale), (e.g. Ft. Lauderdale – Broward County – Florida – Southeastern Theme 4: Place Culture – people’s lifestyles, values, beliefs, and traits What people care about: language, religion, ethnicity What people take care of: 1) daily necessities of survival (food, clothing, shelter) and 2) leisure activities (artistic expressions, recreation) Cultural institutions: political institutions (a country, its laws and rights) Components of culture: Culture region – the area within which a particular culture system prevails (dress, building styles, farms and fields, material manifestations,…) Culture trait – a single attribute of culture Culture complex – a discrete combination of traits Culture system – grouping of certain complexes, may be based on ethnicity, language, religion,… Culture realm – an assemblage of culture (or geographic) regions, the most highly generalized regionalization of culture and geography (e.g. sub-Saharan Africa) Physical Processes – environmental processes, which explain the distribution of human activities Climate – long-term average weather condition at a particular location. Vladimir Koppen’s five main climate regions (expresses humans’ limited tolerance for extreme temperature and precipitation levels) Vegetation – plant life. Soil – the material that forms Earth’s surface, in the thin interface between the air and the rocks. Erosion and the depletion of nutrients are two basic problems concerning the destruction of the soil. Landforms – Earth’s surface features (geomorphology), limited population near poles and at high altitudes Theme 5: Movement Culture Hearths – sources of civilization from which an idea, innovation, or ideology originates (e.g. Mesopotamia, Nile Valley), viewed in the context of time as well as space Cultural diffusion – spread of an innovation, or ideology from its source area to another culture a) Expansion diffusion – an innovation, or ideology develops in a source area and remains strong there while also spreading outward Contagious diffusion – nearly all adjacent individuals are affected (e.g. spread of Islam, disease) Hierarchical diffusion – the main channel of diffusion some segment of those who are susceptible to (or adopting) what is being diffused (e.g. spread of AIDS, use of fax machines) Stimulus diffusion – spread of an underlying principle (e.g. idea of industrialization) Relocation diffusion – spread of an innovation, or ideology through physical movement of individuals Migrant diffusion – when an innovation originates somewhere and enjoys strong-but briefadoption, loses strength at origin by the time it reaches another area (e.g. mild pandemics) Acculturation – when a culture is substantially changed through interaction with another culture Transculturation – a near equal exchange between culture complexes Forces that work against diffusion: Time-distance decay – the longer and farther it has to go, the less likely it will get there Cultural barriers – prevailing attitudes or taboos Anthropogenic Human induced change on the natural environment is ANTHROPOGENIC EVERY PLACE IS UNIQUE!! Location Site Physical characteristics Attributes Situation Position Description Relative location Comparisons Significance of location Place Names Location description – toponym Physical features U.S. Geological Survey Absolute Location-Position on Earth’s surface using the coordinate system of longitude (that runs from North to South Pole) and latitude (that runs parallel to the equator). Relative Location or Situation The relative location or situation of Ballantyne is south of the city of Charlotte. Site: The physical characteristics of a place, what is found at the location and why it is significant Figure 1.5.1 Absolute vs. Relative Distance Absolute distance: Exact measurement of the physical space between two places. Relative distance: Approximate measurement of the physical space between two places. Regions: Unique Areas Combination of Features Functional, Formal, Vernacular Region Uniqueness of characteristics Combinations Cultural Landscape Language and religion Economic features Physical features Figure 1.5.3 Formal Region Uniform and homogeneous Common characteristics Pattern explanation and identification Impact of diversity and minorities Figure 1.6.2 Functional Region Nodal region Focal or central point Regional domination Boundaries and limits Service areas Impact of technology Figure 1.6.1 Vernacular/Perceptual Region Place or perceptual region Informal Transcends geographic measurement Figure 1.6.3 Cultural Trait vs. Cultural Complex Cultural trait: a single element of normal practice in a culture (e.g., wearing a turban) Culture complex: a combination of related cultural traits (e.g., prevailing modes of dress; nationalism) Agricultural Revolutions: First Agricultural Revolution/Neolithic Revolution - The domestication of plants and animals around 12,000 BC Second Agricultural Revolution -improved methods of cultivation, harvesting, and storage of farm produce stemming from the Industrial Revolution Third Agricultural Revolution/ Green Revolutioninternational effort that was planned to eliminate hunger by improving crop performance. Development of genetically engineered crops (GE) or genetically modified organisms (GMOs) It began in the 1960s when a combination of technologies was made available to Mexico and countries in Asia in an effort to improve the diets of people in those regions. Agricultural Hearths Ancient culture hearth: Fertile Crescent, Indus Valley, Chang & Yellow River Valley (China), Nile River Valley and Delta, MesoAmerica (origin of farming developed during the First Agricultural Revolution beginning around 12,000 years ago). -Modern culture hearth: Europe, North America, Japan (origin and focus of the Industrial Revolution beginning in the early 1800s after the onset of the Second Agricultural Revolution). Cultural landscape (built environment): Fashioning of a natural landscape by a cultural group. This is the essence of how humans interact with nature. Sequent occupance: The notion that successive societies leave their cultural imprints on a place, each contributing to the cumulative cultural landscape. This is an important concept in geography because it symbolizes how humans interact with their surroundings. Types of Diffusion Cultural diffusion: The process of spread of a feature or trend from one place to another over time. Relocation diffusion: The spread of an idea through physical movement of people from one place to another. Ex: spread of AIDS from New York, California, & Florida. Migrant diffusion: dies in its hearth by the time it spreads outward to other areas: best example: flu Expansion diffusion: The spread of a feature from one place to another in a snowballing process… -Hierarchical diffusion: The spread of an idea from persons or nodes of authority or power to other persons or places (Ex: hip-hop/rap music) -Contagious diffusion: The rapid, widespread diffusion of a characteristic throughout the population. (Ex: ideas placed on the internet) -Stimulus diffusion: the spread of an underlying principle, even though a characteristic itself apparently fails to diffuse. (Ex: PC & Apple competition) Acculturation vs. Transculturation Acculturation: Process of adopting only certain customs that will be to their advantage Transculturation: A near equal exchange of culture traits or customs Assimilation: Process of less dominant cultures losing their culture to a more dominant culture Environmental Determinism vs. Possibilism Environmental determinism: A 19th- and early 20th-century approach to the study of geography that argued that the general laws sought by human geographers could be found in the physical sciences. Geography was therefore the study o f how the physical environment caused human activities (e.g., Jared Diamond – Guns, Germs, and Steel) Possibilism- The physical environment may limit some human actions, but people have the ability to adjust to their environment. Cultural Ecology: The geographic study of the multiple interactions of humanenvironmental relationships Holocene epoch: current interglaciation period (sustained warming phase between glaciations during an ice age), extending from around 12,000 years ago to the present (some scientists speculate that since humans influence the Earth as no species was able to before, we have recently entered the Anthropocene epoch). Contemporary Mapping Tools GIS- Graphic Information Systems Layers GIS technology Computers and complex maps Geographic Information System Precision geocoding Data storage and relationships Analysis Display Global Positioning System (GPS): satellite-based system for determining the absolute location of places. Remote Sensing Remote sensing: method of collecting data or information through the use of instruments (e.g., satellites) that are physically distant from the area or object of study. Qualitative data: described in terms of its quality (that is, informal or relative characteristics such as culture, language, religion, …). Quantitative data: precisely describes data using numbers and measures (population, political, economic, …). Contemporary Mapping Tools: Mash-Up: When you take one geographical element and superimpose or put it side by side with another Figure 1.4.3 Creating a Projection: 2 Steps Mercator Projection- Landmasses near the North and South Poles look bigger. (Greenland & Antarctica) The Robinson Projection – attempt to balance projection errors. Nothing is perfectly accurate but errors are reduced and it is pleasing to the eye. ADV: reserves accurate compass direction, conformal map-shows shapes pretty much the way they appear on the globe DIS: artificially increases the size of landscapes to make industrialized developed countries appear to account for a greater percentage of the total geographical area than they really do, land masses are larger in size at high latitudes near the North and South Poles The Peters Projection (“Gall-Peters”)accurate sizes of all of the world’s landmasses. It shows just how large the landmasses near the equator (where the poorest countries are located) actually are! More fairly shows the third world countries. Countries shapes are distorted, but area is accurate Fuller Projection- Maintains the accurate size and shape of landmasses. Rearranges direction so the cardinal directions no longer have any meaning Azimuthal Projection – as if you put a flat piece of paper on top of a globe (planar) Map Projections Map projections: any 3-dimensional object (Earth) will project some distortion onto any 2-dimensional object (map) Azimuthal: directions from a central point are preserved; usually these projections also have radial symmetry Mercator: straight meridians and parallels that intersect at right angles, used for marine navigation Peters: equal-area cylindrical, areas of equal size on the globe are also equally sized on the map Robinson: distorts shape, area, scale, and distance in an attempt to balance the errors of projection properties Fuller: using the surface of a polyhedron, it is unfolded to a net in many different ways and flattened to form a two-dimensional map which retains most of the globe’s relative proportional integrity Types of Maps Types of maps: -dot: one dot represents a certain number of phenomena (e.g., population) -thematic: made to reflect a particular theme about a geographic area (e.g., geographic, topographic, political, …) -choropleth: thematic map in which areas are shaded or patterned in proportion to the measurement of the statistical variable being displayed (e.g., population density) -reference: generalized map type designed to show general spatial properties of features (e.g., world maps, road maps, atlas maps) -proportional symbol: type of thematic map in which the areas of symbols are varied in proportion to the value of an attribute (e.g., city population) -preference: map demonstrating progressively more desirable options -cartogram: map in which some thematic mapping variable is substituted for land area (e.g., GDP) Dot Map Thematic Map Choropleth Map Reference Map Proportional Symbol Map Preference Map Cartogram Map Terms parallel: line of latitude (Equator, Tropic of Cancer & Capricorn, Arctic & Antarctic Circles) meridian: line of longitude (Prime Meridian, International Date Line) TODALSIG: (Title, Orientation, Date, Author, Legend, Scale, Index, Grid) acronym for assessing the validity and reliability of any map Scale: representation of a real-world phenomenon at a certain level of reduction or generalization; represented as a fraction (large scale = large detail, small area; small scale = small detain, large area) Properties of Distribution Density – measurement Concentration Number of objects Land area Clustering Dispersal Pattern Irregular Linear Rectangular Grid Connections Between Places Spatial interaction Characteristics spread through diffusion Figure 1.9.3 Spatial Interaction Places connected through a network Distance decay Space-time compression Promotes change Cultural interaction Economic influences Electronic communications Magnifies change Knowledge transfer Figure 1.9.1 Diffusion Characteristic spreads across space and time Hearth - locations and nodes Relocation diffusion – physical movement Expansion diffusion Hierarchical Contagious Stimulus Figure 1.9.2 Geographic Consequences of Change Globalization and cultural diversity Modern communications pulls toward cultural and economic interaction People look for expression of unique cultural traditions and economy Tension between globalization and local diversity Geographers search for changes in uniqueness of place, location, distinctive culture and physical features Geographers look for why different places have similar features using three basic concepts: Scale: studying a part of the whole Space: the physical gap or interval between objects Connections: relationships among people, objects and time Chapter Summary Development “Earth” and “to write” Early geography assisted in exploration and discovery Scientific geography Map – fundamental tool Uniqueness Every place on Earth is unique and can be determined by site, situation, and name Every area and region is unique because of a combination of unique features Similarities Globalization – places and regions can display similar economic and cultural features Geographers document Distribution – density, concentration, and pattern Diffusion – spread of features Communication Chapter Resources Gender and Space Time Zones Father, mother, and children are different and use space, time, travel and work differently. 24 standard (mapped) time zones related to Greenwich, UK (0º longitude). Greenwich Mean Time (GMT). One hour for each 15 degrees, Internet www.aag.org www.amergeog.org www.nationalgeographic