Risser, P. G. 1998. NPP Grassland: Osage, U.S.A., 1970-1972. Data set. Available on-line [http://www.daac.ornl.gov] from Oak Ridge National Laboratory Distributed Active Archive Center, Oak Ridge, Tennessee, U.S.A.
Data were collected as part of a coordinated study over 1-3 years at ten grassland sites of the central and western United States, under the U.S. Grassland Biome Project of the International Biological Program (IBP).
The Osage study site (36.95 N 96.55 W) is situated in the U.S. Central Lowlands, about 60 km north-west of the city of Tulsa, Oklahoma, on the K. S. Adams Ranch, a rangeland of 14,000 ha. It is located at the southern end of the Flint Hills, the largest expanse of unbroken tallgrass prairie in the U.S.A. The "ungrazed" treatment area had not been grazed between 1950 and 1970, although it may have been mowed for hay as late as 1968. The grazed treatment was relatively lightly grazed, primarily in early spring and late fall (autumn).
Telephone: +1 (970) 491-7581
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E-mail: billl@cnr.colostate.edu
Alternative Contact: Dr. P. G. Risser
Office of the President
Oregon State University
Corvallis, Oregon 97331-2128
U.S.A.
Telephone: +1 (541) 737-2565
Fax: +1 (541) 737-3033
E-mail: paul.risser@orst.edu
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