A secondary source excerpt describing von Thünen's concentric rings notes that forestry often appears relatively close to the market because wood is bulky and expensive to transport, while grains and ranching can be farther out. In a simplified single-city region, a student claims forests should be the outermost land use because "trees grow anywhere." According to the von Thünen model, which of the following best explains the agricultural pattern described?
- Forestry tends to be closer to the market than grains/ranching because bulky, heavy products incur higher transport costs per unit distance. (correct answer)
- Forestry must always be the outermost ring in reality, so the student's claim is correct in all regions.
- The correct order is ranching closest, then grain, then dairy/vegetables, with forestry farthest from the market.
- Transport costs are irrelevant because bid-rent does not change with distance in the model.
- This is best explained by central place theory, which predicts the spacing of high-order and low-order services.
Explanation: In the von Thünen model, forestry often occupies a ring closer to the market than grains or ranching, contrary to what might seem intuitive. This placement reflects the high transport costs associated with wood products, which are bulky and heavy relative to their value. Before modern transportation, moving timber was particularly expensive, making proximity to market crucial for profitability. Forests could outbid grain farmers for land at moderate distances because savings on transport costs justified higher land rents. The student's claim that forests should be outermost because "trees grow anywhere" ignores the economic logic of the model, which focuses on profitability rather than biological possibility. Physical ability to grow doesn't determine location; rather, the ability to pay rent after accounting for transport costs does. Answer A correctly explains that forestry's position reflects the high transport costs of bulky wood products.