Module 39: The von Thünen Model
Module 39: The von Thünen Model
Unit 5: Agriculture and Rural Land Use Patterns and Processes
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Learning Goals
Learning Goal 39-1
Identify the underlying assumptions of the von Thünen model and explain how it applies to historic patterns of agricultural land use.
Learning Goal 39-2
Describe how the von Thünen model explains contemporary patterns of agricultural production at different scales.
Underlying Assumptions of the von Thünen Model
The following are the critical assumptions on which the von Thünen model is based:
No trade connections: There are no external trade connections with the outside world.
One central market: The model assumes the existence of a single, centrally located market.
Uniform soil and climate: It is assumed that soil and climate characteristics are uniform across the region.
Flat terrain: The terrain is presumed to be flat throughout with no rivers affecting transportation.
Equal access for farmers: All farmers located the same distance from the market are regarded as having equal access to it.
Profit maximization: All farmers are motivated to maximize their profits from agricultural production.
The von Thünen Model Development
Von Thünen developed his model in the 1820s to illustrate the impacts of distance from market and transportation costs on the distribution of agricultural practices.
At that time, industrialization had minimal impact on Germany, where von Thünen resided, limiting refrigeration and relying primarily on oxen-pulled wagons for transportation.
Rings of the von Thünen Model
The model is structured around a series of concentric zones or rings, each representing different types of agricultural usage based on distance from the market:
Dairy Farming and Market Gardening:
Farms focused on intensive agriculture, producing perishable goods such as dairy and vegetables, located close to the city center.
Quick transportation to market is essential to prevent spoilage.
Forest for Wood:
Timber is important as a source of firewood for heating and cooking.
Since wood is bulky, forests are situated near the market to minimize transport costs.
Grains and Field Crops:
Extensive agricultural practices, such as grain farming, are found farther from the market due to the durability and lower weight of grains, which allow for cost-efficient transport from longer distances.
Grain farming requires vast fields, often available at a lower cost in the outskirts.
Ranching:
Located even further away from the market, ranching involves herds grazing on less fertile land, where transport costs are minimal as livestock are walked to market.
Modifications of the von Thünen Model
River Navigation: When a navigable river is present, the model adjusts:
Zone I (Dairy) follows the river's course, extending outward and affecting land values of adjacent areas.
Woodlands follow a similar pattern but do not extend as far due to accessibility and transport efficiency.
Historical Patterns of Agricultural Production
Farmers in the hinterland (the area surrounding a city) cultivated various crops and livestock:
Wheat, rye, corn, meadow grass, and livestock were managed by hinterland farmers.
Urban farmers provided dairy products and fresh produce due nearest city markets.
Examples of historical farming:
A nineteenth-century New York City farm located at modern-day 80th Street and 9th Avenue features distinct farm structures.
Traditional farming methods were showcased, such as the manual threshing of rye without mechanization.
Contemporary Applications of the von Thünen Model
In modern settings, the position of agricultural rings tends to remain stable from von Thünen's original model, although several variables impact land usage:
Climate variations alter the geographical and spatial arrangements of agricultural practices.
Specialty crops, like grapes, are identified in regions with favorable conditions beyond the historical patterns illustrated by the model.
Limitations of the von Thünen Model in Today's Context
While the model is useful as a theoretical framework, it does not capture the complexities of modern agriculture:
Real-world markets often feature multiple trading points instead of a single central market.
Intensive agricultural methods can occur near various urban centers, disrupting the expected placement of farming practices.
Summary and Review
Identify the underlying assumptions of the von Thünen model:
No trade connections with the outside world, one central market, uniform soil and climate, flat terrain, equal access for farmers, and profit maximization.
Identify the four rings of the von Thünen model:
Dairy farming/market gardening, forest, grains and fields, and ranching.
Explain the alteration of the model with navigable rivers:
Dairy and wood zones extend along river routes due to easier transport.
Location of Dairying and Market Gardening:
Intensive agriculture in proximity to urban markets to prevent spoilage.
Location of Grain Farming and Field Crops:
Positioned farther away due to extensive needs and longer shelf life of grains.
Explaining bid-rent theory:
The greater the proximity to the market, the higher the land value, influencing agricultural type decisions.
Modern applicability of the model:
Factors such as climate variations must be considered to enhance its relevance to contemporary agricultural practices.