Record Display for the EPA National Library Catalog

RECORD NUMBER: 37 OF 215

OLS Field Name OLS Field Data
Main Title Conservation Tillage Impacts on National Soil and Atmospheric Carbon Levels.
Author Kern, J. S. ; Johnson, M. G. ;
CORP Author ManTech Environmental Technology, Inc., Corvallis, OR.;Corvallis Environmental Research Lab., OR.
Publisher c1993
Year Published 1993
Report Number EPA-68-C8-0006; EPA/600/J-93/153;
Stock Number PB93-191500
Additional Subjects Cultivation ; Soil conservation ; Air pollution ; United States ; Gases ; Carbon ; Greenhouse effect ; Carbon dioxide ; Methane ; Farm crops ; Mathematical models ; Soil properties ; Organic materials ; Maps ; Graphs(Charts) ;
Holdings
Library Call Number Additional Info Location Last
Modified
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Status
NTIS  PB93-191500 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 08/23/1993
Collation 12p
Abstract
Soil organic matter is the largest global terrestrial C pool and is a source of CO2, CH4 and other greenhouse gases. Changes in soil organic C (SOC) content and fossil fuel C emissions in response to conversion of conventional tillage to conservation tillage in the contiguous USA for field crop production by the year 2020 were projected by developing a model based on published data, and geographic databases of current conservation tillage usage and agricultural SOC. Three scenarios of conservation tillage use, 27% (current usage), and 57% (low), and 76% (high) of field crops planted were considered. Conversion of land to conservation tillage alone is not likely to sequester sufficient C to offset the impact of C released by fossil fuel consumption.