Geography Reference
In-Depth Information
Production value
$ / ha
0
50
0 km
30 -
85
85 -
700
Method: Quartic Kernel density
smoothing in a flexible bandwidth
of the 30 nearest counties
700 - 1,500
1,500 - 3,500
3,500 - 6,650
Source: US Agricultural census
Designed and made by JM Zaninetti, University of Orleans, CEDETE Institute
Figure 2.4.
Agricultural productivity in 2002
Agriculture in the Great Plains is based on extensive farming. The average yield
per hectare was only $700 in United States in 2002, with a minimum of $85 in
Montana and a maximum of $3,500 in Connecticut, a state which is located in the
dairy and truck farmer belt of New York (see Figure 2.4).
Suburban agriculture tends to specialize in very profitable production because of
the inflation of land values as a result of urban development. This is very common
on the Northeastern Atlantic coast.
A more intensive agriculture, usually irrigated, developed first in California and
Florida, before spreading to the Pacific Northwest and the deserts of Arizona and
New Mexico. Meanwhile, agriculture is rather extensive in the Appalachian
highlands, in the mountainous West, and in the High Plains.
