2008 Joint Meeting of The Geological Society of America, Soil Science Society of America, American Society of Agronomy, Crop Science Society of America, Gulf Coast Association of Geological Societies with the Gulf Coast Section of SEPM
Paper No. 141-29
Presentation Time: 8:00 AM-4:45 PM

Cropped Land Vs. Undisturbed Tallgrass Prairie—the Impact on Shallow Groundwater Chemistry

MACPHERSON, G.L., Dept. of Geology, University of Kansas, 1475 Jayhawk Blvd, Lindley Hall, Room 120, Lawrence, KS 66045-7613, glmac@ku.edu

The Konza Prairie LTER site, in north-central Kansas, is a relatively undisturbed, tallgrass prairie on a highly dissected terrain underlain by Permian limestone and shale bedrock and capped variable thicknesses of original or reworked Pleistocene loess. Some of the stream-valley bottoms have been used historically for cultivation of wheat, milo, or soybean. A comparison of the shallow groundwater chemistry beneath undisturbed and cropped valley bottom reveals differences in solutes and CO2 content that are related to disturbance. This site may be an excellent analog for changes that have occurred under cropped land throughout the Midwest USA.

2008 Joint Meeting of The Geological Society of America, Soil Science Society of America, American Society of Agronomy, Crop Science Society of America, Gulf Coast Association of Geological Societies with the Gulf Coast Section of SEPM
General Information for this Meeting
Session No. 141--Booth# 29
Geochemistry; Geochemistry, Organic (Posters)
George R. Brown Convention Center: Exhibit Hall E
8:00 AM-4:45 PM, Sunday, 5 October 2008

Geological Society of America Abstracts with Programs, Vol. 40, No. 6, p. 134

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