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The Von Thunen Model

The Von Thunen Model. AP Human Geography. Review: What is a model?. Models are examples that help us better understand a major concept or idea. Models are NOT exact and are flexible. Models are NOT perfect. Models might look different in reality than the do in theory. The Model, again.

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The Von Thunen Model

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  1. The Von Thunen Model AP Human Geography

  2. Review: What is a model? • Models are examples that help us better understand a major concept or idea. • Models are NOT exact and are flexible. • Models are NOT perfect. • Models might look different in reality than the do in theory.

  3. The Model, again.

  4. Historical Background • “A Portion of Each Crop is Eaten By the Wheels!”- von Thunen. Germany, 1820’s. • Developed by Johann Heinrich von Thunen in the early 1800’s (19th century) • Based on the layout of Rostock, Germany • Noticed a pattern of 4 rings developed around the central city. • Each ring was a different type of agriculture. • Created before highways, railroads, factories, etc.

  5. The Big Idea! • Farmers grow certain crops closer to the market (aka central city) while others are grown farther away. • Why? It’s all about the Benjamin$, baby! • Decision to grow certain crops in certain places is based on profit.

  6. The Formula • Profit= Market Price – Production Costs • Production costs include cost of labor, equipment, and TRANSPORTATION! • Factor 1: The bulkier the product, the more it costs to transport. • Factor 2: The more perishable a product, the closer to the market it has to be. • Factor 3: The more land a product needs, the farther from the central city it should be (land closer to city is more expensive) • All of these must be considered when deciding what to grow where!

  7. Bid-Rent Curve • As distance from city center increases, cost of land goes down.

  8. The Rings • Ring 1: Dairy/ Commercial Gardening • Easily perishable goods • Located too far, goods go bad, no profit • Ring 2: Forest (building material/ fuel) • Not perishable but very heavy! • Ring 3: Extensive Crops (grains) • Not as heavy as wood, can be stored for longer periods of time. • Ring 4: Livestock • Needs a lot of land • Perishable once slaughtered, but animals can transport themselves! • Beyond the rings: Wilderness • Too far from city, to expensive to transport anything.

  9. One last time.

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