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Tracks Through North America's Changing Landscapes
REGIONS
Explore examples from different parts of North America, focusing on
trends in vegetation, human occupation and land use, and current
environmental issues.
TRENDS
Examine environmental change through time and compare the impacts of
modern society with environmental changes that preceded us. How
do current changes differ from those that occurred in the past?
- QUATERNARY: FROM THE ICE AGE THROUGH EUROPEAN CONTACT
- SETTLEMENT: PATTERNS OF COLONIZATION AND LAND USE
- Historical Interrelationships
Between Population Settlement and Farmland in the Conterminous United States,
1790 to 1992
(Margaret Maizel, R. Denis White, Stuart Gage, Leon Osborne,
Ralph Root, Susan Stitt, and George Muehlbach)
- The Baltimore-Washington Regional Collaboratory
Land-Use History Research Program
(Timothy W. Foresman)
- Assessing the Impact of Urban Sprawl on
Soil Resources in the United States Using Nighttime "City Lights"
Satellite Images and Digital Soils Maps
(Marc L. Imhoff, David Stuzter, William T. Lawrence, and Christopher Elvidge)
- MANAGEMENT: EFFECTS OF MODERN RESOURCE UTILIZATION
- NATURAL VARIATION AND CURRENT RATES OF CHANGE
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http://biology.usgs.gov/luhna/tracks.html
Last Updated: Tuesday, 15-Aug-2000 08:26:50 MDT
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