Coastal & Marine Geology InfoBank

Home FACS Activities Atlas Geology School Related Sites More

USGS CMG InfoBank: Dust Bowl

Skip navigational links
Loading
Dictionaries: Our Mapping Systems   The USGS and Science Education   USGS Fact Sheets   Topics   Keywords   Data Dictionary   Metadata Dictionary   Computer Terminology   Digital Formats  
InfoBank Terms: Activity ID   activity overview   crew   digital data   formal metadata   lines   metadata   NGDC   port stops   project/theme   region   ship   stations   time   virtual globe   year  
Data Types: bathymetry   biological   geochemical   gravity   ground penetrating radar   imaging   LIDAR   logs   magnetics   metering equipment   navigation   samples   seismic   total station   definitions disclaimer  
Data Formats: ARC coverage   E00   FGDC metadata   gridded/image   imaging   material   scattered/swath   Shapefile   vector/polygon  
Comment: 20:49 - 21:42 (00:53)
Source: Annenberg/CPB Resources - Earth Revealed - 22. Wind, Dust and Deserts
Keywords: desertification, desert, "United States", "Great Plains", "ecological balance", rainfall, plant, agriculture, grazing, soil, drought, "dust bowl", "soil conservation"

Our transcription: In the United States the most dramatic example of desertification occurred on the Great Plains.
There had always been a very delicate ecological balance in this region between the very slight rainfall and the fragile plant life.
When ranchers starting overgrazing the land and farmers began overworking the soil, the situation became extremely dangerous.
All it took was the great drought of the 1930's to turn the Plains into a raging Dustbowl.
Fortunately, thanks to conservation efforts and a series of wet years in the 1940's the wheat lands of the Great Plains were eventually saved from becoming a desert.

Geology School Keywords
Skip footer navigational links

Coastal and Marine Science Centers:  Pacific   St. Petersburg   Woods Hole  
InfoBank   Coastal and Marine Geology Program   Geologic Information   Ask-A-Geologist   USGS Disclaimer  


Accessibility FOIA Privacy Policies and Notices

Take Pride in America logo USA.gov logo U.S. Department of the Interior | U.S. Geological Survey
URL: http://walrus.wr.usgs.gov/infobank/programs/html/school/moviepage/20.01.24.html
Page Contact Information: InfoBank staff
Page Last Modified: Thu Oct 31 04:27:42 PDT 2013  (chd)