New Acres of Developed Land in Non-Metropolitan Areas, 1992-1997
Description
This dot map shows the increase in acres of
developed land (urban areas and rural
transportation land) from 1992 to 1997 within
non-metropolitan counties. Each red dot
represents 5,000 new acres of developed land in
non-metropolitan areas. There was a total of
11,217,000 acres developed, with 3,814,600 acres
located in non-metropolitan areas. A county was
considered metropolitan if any portion of the
county was in a Metropolitan Statistical Area.
Metropolitan Statistical Areas (MSAs) are shaded
beige. MSA Central Cities are indicated by
black squares. Areas with 95% or more Federal
area are shaded gray.
Cautions for this Product:
This map does not show the total amount of
developed land. Data are not collected on
Federal land. Data are not available for Alaska
or the Pacific Basin. Data are aggregated by
county, not MSA. In New England and Puerto Rico
MSA and county boundaries (NRI service area
boundaries in Puerto Rico) do not coincide. In
these areas acres that are in a metropolitan
county, but outside a MSA are shown, but not
included in the non-metropolitan acres developed
total.
Sources
Source:
National Resources Inventory, 1997
Distributor:
USDA-NRCS-RIAD
Reliability:
NRI sample data are generally reliable at the
95% confidence interval for state and certain
broad substate area analyses. Generally,
analyses that aggregate data points by smaller
geographic areas and/or more specific criteria
result in fewer data points for each aggregation
and therefore less reliable estimates. NRI maps
reflect national patterns rather than site-
specific information.
Source:
U.S. Census Bureau
Distributor:
U.S. Census Bureau
Reliability:
Layers
Aggregate Layer:
County with Federal Land
Other Layers Displayed:
States, Rivers, Metropolitan Statistical Areas (MSA), Metropolitan Statistical Area (MSA) Lat/Long selections
from GNIS
Definitions
Developed land:
A combination of land cover/use categories,
Urban and built-up areas, and Rural
Transportation Land.
Federal land:
A land ownership class designating land that is
owned by the Federal Government. It does not
include, for example, trust lands administered
by the Bureau of Indian Affairs nor Tennessee
Valley Authority (TVA) land. No data are
collected for any year that land is in this
ownership. [NRI-97]
Metropolitan Statistical Area (MSA):
A geographic entity, defined by the Federal OMB
for use by Federal statistical agencies, based
on the concept of a core area with a large
population nucleus, plus adjacent communities
having a high degree of economic and social
integration with that core. Qualifications of
an MSA requires the presence of a city with
50,000 or more inhabitants, or the presence of
an Urban Area and a total population of at least
100,000 (75,000 in New England). The county or
counties containing the largest city and
surrounding densely settled territory are
central counties of the MSA. Additional
outlying counties qualify to be included in the
MSA by meeting certain other criteria of
metropolitan character, such as a specified
minimum population density or percentage of the
population that is urban. MSA's in New England
are defined in terms of cities and towns,
following rules concerning commuting and
population density. MSA's were first defined
and effective June 30, 1993.
Rural transportation land:
A Land Cover/Use category which consists of all
highways, roads, railroads and associated rights-
of-way outside urban and built-up areas;
including private roads to farmsteads or ranch
headquarters, logging roads, and other private
roads, except field lanes. [NRI-97]
Urban and built-up areas:
A Land Cover/Use category consisting of
residential, industrial, commercial, and
institutional land; construction sites; public
administrative sites; railroad yards;
cemeteries; airports; golf courses; sanitary
landfills; sewage treatment plants; water
control structures and spillways; other land
used for such purposes; small parks (less than
10 acres) within urban and built-up areas; and
highways, railroads, and other transportation
facilities if they are surrounded by urban
areas. Also included are tracts of less than 10
acres that do not meet the above definition but
are completely surrounded by Urban and Built-up
land. Two size categories are recognized in the
NRI: (i) areas 0.25 to 10 acres, and (ii) areas
greater than 10 acres. [NRI-97]
Product Information
Product ID:
5124
Production Date:
12/13/00
Product Type:
Map
For additional information
contact the Resources Inventory and Assessment Division.
Please include the Product ID you are inquiring about.
nri@wdc.usda.gov
or 1400 Independence Avenue SW - P.O. Box 2890 -
Washington D.C. 20013. If you use our analysis products,
please be aware of our disclaimer.
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