Key Issue #4: Why does agriculture vary among regions?. Environmental Factors- Climate dictates what can be grown Middle East- pastoral nomads Africa- Shifting Cultivation China- Differences within the country U.S.- differences among growing and Cattle farming
1. Land is left Fallow for shorter periods
2. Adopting new farm methods
Access to markets
Distance from the farm to the market influences what is produced
Suffer low incomes b/c they can produce more than what is needed
New seeds, fertilizers, pesticides, equipment, etc. have enabled farmers to obtain greater yield per area of land
Ex. # of dairy cows decreased but milk output increased
Demand is stagnant in MDC b/c low pop. growth
Even though the Von Thunen model was created in a time before factories, highways, and even railroads, it is still an important model in geography.
The Von Thunen model is an excellent illustration of the balance between land cost and transportation costs.
As one gets closer to a city, the price of land increases.
The farmers of the “Isolated State” balance the cost of transportation, land, and profit and produce the most cost-effective product for market.
Of course, in the real world, things don't happen as they would in a model.
Technology allows much greater production (surplus) with less human labor, but often has high social and environmental costs.
“Our incredible successes as a species are largely derived from this choice, but the biggest threats to our existence stem from the same decision.” Jared Diamond, 1999
Less then 2% left in the USA
Debt for nature swap