von thünen model ap human geography mr. blanchard ap human geography mr. blanchard

22
Von Thünen Model AP Human Geography Mr. Blanchard . .

Upload: dwayne-harmon

Post on 19-Dec-2015

223 views

Category:

Documents


0 download

TRANSCRIPT

Page 1: Von Thünen Model AP Human Geography Mr. Blanchard AP Human Geography Mr. Blanchard

Von Thünen Model

AP Human Geography

Mr. Blanchard

..

Page 2: Von Thünen Model AP Human Geography Mr. Blanchard AP Human Geography Mr. Blanchard

The Von Thünen model of agricultural land use was created by farmer and amateur economist J.H. Von Thünen

of Germany. He believed farmers were ‘economic men.”

His model was created before industrialization and is based on the following 6 limiting assumptions:

Page 3: Von Thünen Model AP Human Geography Mr. Blanchard AP Human Geography Mr. Blanchard

Background

The Von Thünen model of agricultural land, created before industrialization, made the following simplifying assumptions:The city is located centrally within an "Isolated

State."The Isolated State is surrounded by wilderness.The land is completely flat and has no rivers or

mountains.

Page 4: Von Thünen Model AP Human Geography Mr. Blanchard AP Human Geography Mr. Blanchard

Background

Soil quality and climate are consistent.Farmers in the Isolated State transport their

own goods to market via oxcart, across land, directly to the central city. There are no roads.

Farmers behave rationally to maximize profits.

Page 5: Von Thünen Model AP Human Geography Mr. Blanchard AP Human Geography Mr. Blanchard

Von Thünen's model is concerned with land use patterns. Transport costs vary with the bulkiness and perishability of the product.

Product A is costly to transport but has a high market price and is therefore farmed near the city.

This phenomenon may be illustrated by a graph showing the varying locational rent of three products, the most profitable product at each point, and the land use pattern which results.

Eventually, product C, with still lower transport costs, becomes the most profitable product. The changing pattern of the most profitable produce is therefore seen as a series of land use rings around the city.

Product B sells for less but has lower transport costs. At a certain distance, B becomes more profitable than A because of its lower transport costs.

Page 6: Von Thünen Model AP Human Geography Mr. Blanchard AP Human Geography Mr. Blanchard

Place each “product” where you think it would go and explain why.

In no particular order, you products and locations are :

Intensive agricultureLivestock RanchingCityForest ResourcesGrain FarmingDairy

Your group will locate each of the following in the ring that you think will maximize its efficiency. Explain your reasoning for each of your choices.

Use a blank sheet of paper

Page 7: Von Thünen Model AP Human Geography Mr. Blanchard AP Human Geography Mr. Blanchard

In an Isolated State with the foregoing statements being true, Von Thünen hypothesized that the following pattern would develop:

There are four rings of agricultural activity surrounding the city.

–Dairying and intensive farming occur in the ring closest to the city. Since vegetables, fruit, milk and other dairy products must get to market quickly, they would be produced close to the city (remember, we don't have refrigerated oxcarts!)

Central CityIntensive farming/dairy

Managed forestExtensive field crops

(grains)Ranching/grazing

Page 8: Von Thünen Model AP Human Geography Mr. Blanchard AP Human Geography Mr. Blanchard

Forest resources (Timber and firewood) would be produced for fuel and building materials in the second zone.

Before industrialization (and coal power), wood (forest) was a very important fuel for heating and cooking. Wood is very heavy and difficult to transport so it is located as close to the city as possible.

Central CityIntensive farming/dairy

Managed forestExtensive field crops

(grains)Ranching/grazing

Page 9: Von Thünen Model AP Human Geography Mr. Blanchard AP Human Geography Mr. Blanchard

The third zone consists of extensive fields crops such as grains for bread.

Since grains last longer than dairy products and are much lighter than fuel, reducing transport costs, they can be located further from the city.

Central CityIntensive farming/dairy

Managed forestExtensive field crops

(grains)Ranching/grazing

Page 10: Von Thünen Model AP Human Geography Mr. Blanchard AP Human Geography Mr. Blanchard

Ranching (livestock farming) is located in the final ring surrounding the central city.

–Animals can be raised far from the city because they are self-transporting. Animals can walk to the central city for sale or for butchering.

/GrazingDairy

Central CityIntensive farming/dairy

Managed forestExtensive field crops

(grains)Ranching/grazing

Page 11: Von Thünen Model AP Human Geography Mr. Blanchard AP Human Geography Mr. Blanchard

Beyond the fourth ring lies the unoccupied wilderness, which is too great a distance from the central city for any type of agricultural product.

Central CityIntensive farming/dairy

Managed forestExtensive field crops

(grains)Ranching/grazing

Page 12: Von Thünen Model AP Human Geography Mr. Blanchard AP Human Geography Mr. Blanchard
Page 13: Von Thünen Model AP Human Geography Mr. Blanchard AP Human Geography Mr. Blanchard

It doesn’t always look the same:

Page 14: Von Thünen Model AP Human Geography Mr. Blanchard AP Human Geography Mr. Blanchard

The Von Thünen model is an excellent illustration of the balance between land costs and transportation costs.

This is also the basis for the “bid rent” theory.

Page 15: Von Thünen Model AP Human Geography Mr. Blanchard AP Human Geography Mr. Blanchard

As one gets closer to a city, the price of land increases.

The farmers of the Isolated State balance the costs of transportation, land, and profit and produce the most cost-effective product for market.

Page 16: Von Thünen Model AP Human Geography Mr. Blanchard AP Human Geography Mr. Blanchard

1. Dairying and gardening of fruits and vegetables would be closer to the urban market while…

2. Timber and firewood for fuel and building materials would be in the second zone.

3. Mixed farming, commercial grain and orchards and

4. Extensive cattle ranching would be located farther away. Transportation is cheap: the animals can walk to the city for butchering.

So……….

Page 17: Von Thünen Model AP Human Geography Mr. Blanchard AP Human Geography Mr. Blanchard

Why?

Some products spoiled more quickly, needed more sensitive transportation, or generate higher prices at market

These products mean the farmer can afford higher land rent.

Page 18: Von Thünen Model AP Human Geography Mr. Blanchard AP Human Geography Mr. Blanchard

The Von Thünen Model

Page 19: Von Thünen Model AP Human Geography Mr. Blanchard AP Human Geography Mr. Blanchard
Page 20: Von Thünen Model AP Human Geography Mr. Blanchard AP Human Geography Mr. Blanchard

…applying von Thunen’sbasic assumptions

…von Thunen’s model withVariations in climate factored in--the north is colder than the South.

Page 21: Von Thünen Model AP Human Geography Mr. Blanchard AP Human Geography Mr. Blanchard

It’s all about cost & proximity

RINGS:1. Market-oriented gardens & dairy

• Most expensive land, products (delivery cost), and very perishable (no shelf life)

2. Wood lots• Timber for construction and fuel• Must be close because of weight of freight

3. Crops and Pasture• Commodities are rotated annually

4. Animal grazing• Requires the most space

5. Beyond the fourth ring lies the wilderness • Distance from the city is too great a distance from

the central city for any type of agricultural product.

R=Y(p-c)-YFm

R=Y(p-c)-YFmR = land rent; Y = yield per unit of land; p = market price per unit of

commodityc = production expenses per

unit of commodity; F = freight rate (per agricultural

unit, per mile); m = distance to market.

Page 22: Von Thünen Model AP Human Geography Mr. Blanchard AP Human Geography Mr. Blanchard

PRO’S AND CONS

PROSOrganized typical land

organization (what was being practiced)

Perfect world onlyDeveloped for small regional

focus w/single market center but is easily applicable at the national or global scale

CONSAssumes all land is uniform

(quality)Doesn’t account for

topographical features (hills, rivers, etc.)

• Cost changes with land or water transportation

Doesn’t consider social customs or government policies and influences