Von Thünen Model
Đã giới thiệu| English | Ý nghĩa |
|---|---|
| von Thünen model/vɒn ˈθuːnən ˈmɒdl/ | mô hình von Thünen |
Rings around a market
- The von Thünen model 冯·杜能模型 (1826) explains what farmers grow where.
- It is based on transport cost and distance to market.
- Land use forms concentric rings around a central market.
The von Thünen model explains agricultural land use mainly using...
Độ khó 1/5 · 100 xu + một phần thưởng nhỏ cho lần hoàn thành đầu tiên trong ngày
It is built on transport cost and distance to market.
The four rings
- Ring 1: market gardening and dairying (perishable, must be near market).
- Ring 2: forest (heavy fuel/timber, costly to move in his day).
- Ring 3: field crops and grain; Ring 4: ranching (extensive, low value, far out).
Which von Thünen ring?
Sort each land use by its ring, from nearest to farthest.
Perishable products like dairy locate in the ring nearest the market.
Độ khó 1/5 · 100 xu + một phần thưởng nhỏ cho lần hoàn thành đầu tiên trong ngày
Perishable, high-value goods crowd Ring 1, nearest the market.
In the von Thünen model, land use forms ____ rings around a central market.
Độ khó 1/5 · 100 xu + một phần thưởng nhỏ cho lần hoàn thành đầu tiên trong ngày
The model predicts concentric rings of land use.
Match each ring to its land use.
Độ khó 2/5 · 140 xu + một phần thưởng nhỏ cho lần hoàn thành đầu tiên trong ngày
Ring 1 = perishable near; Ring 3 = grain; Ring 4 = ranching far.
Assumptions and reality
- The model assumes a flat, uniform plain with one market and equal transport.
- Real regions bend the rings — roads, rivers, terrain, and refrigeration change things.
- But the core idea, that transport cost shapes land use, still holds.
Select all assumptions of the von Thünen model.
Độ khó 2/5 · 140 xu + một phần thưởng nhỏ cho lần hoàn thành đầu tiên trong ngày
It assumes a flat plain, one market, equal transport; refrigeration is a modern reality that breaks it.
Von Thünen's rings are a model, not a map. Its assumptions (flat land, one market, no roads or refrigeration) never hold perfectly. Modern refrigeration lets perishable goods travel far, breaking the innermost ring. Use it to explain patterns, not to predict exact locations.
Near a city you find perishable dairy and vegetables (Ring 1); far out, cheap grazing land for cattle (Ring 4). But a modern highway can bend the rings, letting a distant farm ship fresh produce quickly — reality adjusting the model.
The von Thünen model predicts concentric rings of land use around a market based on transport cost and distance: perishable/intensive near, extensive/cheap far. It assumes a flat uniform plain; reality bends the rings, but transport cost still shapes land use.
Write from ranching in the outer ring
- A von Thünen model has a central market.
- Cattle need much land and can walk to market.
Where is ranching in the classic model?
Extensive land uses are pushed to cheaper distant land.
Where does ranching sit in the classic model?
Độ khó 1/5 · 100 xu + một phần thưởng nhỏ cho lần hoàn thành đầu tiên trong ngày
Cheap distant land fits an extensive use.