| Source: |
A.
B. Daugherty, Major Uses of Land in the United States:
1987 (Washington, D.C.: U.S. Department of Agriculture,
Economic Research Service, Resources & Technology
Division, 1991), Agricultural Economic Report no. 643. |
| [1] |
As
reported by the U.S. General Services Administration,
1988. Includes land administered by the U.S. Department
of Defense for defense purposes (18.8 million acres) and
land administered by the U.S. Department of Energy (2.1
million acres). |
| [2] |
Estimates
calculated on the basis of state-by-state number of farms
and acreage of unclassified land in farms. |
| [3] |
Areas
in national and state park systems and national forest
wilderness and primitive areas. Generally excludes parks
in urban places and large water bodies. Based on data
from reports and records of the National Park Service,
Forest Service, and state agencies. |
| [4] |
Includes
rural highways and roads, railroads, and airports.
Estimates for highways were derived by applying average
right-of-way widths to the mileage of different highway
systems reported by the Federal Highway Administration.
Estimates of acreage in railroad rights-of-way are based
on state-by-state changes in mileage reported by the
Interstate Commerce Commission. Estimates of acreage in
airports based on information supplied by the Federal
Aviation Administration. Excludes active airports used
strictly for personal or military use. |
| [5] |
Areas
administered by the U.S. Fish and Wildlife Service and
state wildlife agencies. Does not include federal areas
under the primary jurisdiction of another agency or areas
leased for wildlife purposes. Data on federal areas are
from reports and records of the U.S. Fish and Wildlife
Service. State estimates mainly are acreages compiled by
the Council on Environmental Quality updated through 1986
with acreages acquired through the Dingell-Johnson and
Pittman-Robertson programs of federal assistance. |
|