||Implications of Climate Change Scenarios for Soil Erosion Potential in the USA.
Phillips, D. L.;
Johnson, C. B.;
||Corvallis Environmental Research Lab., OR. ;ManTech Environmental Technology, Inc., Corvallis, OR.
General circulation models;
Universal soil loss equation
||Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy.
||Atmospheric general circulation models (GCMs) project that increasing atmospheric concentrations of CO2 and other greenhouse gases may result in global changes in temperature and precipitation over the next 40-100 years. Equilibrium climate scenarios from four GCMs run under doubled CO2 conditions were examined for their effect on the climatic potential for sheet and rill erosion in the conterminous USA. Changes in the mean annual rainfall factor (R) in the Universal Soil Loss Equation (USLE) were calculated for each cropland, pastureland and rangeland sample point in the 1987 National Resources Inventory. With all other USLE factors held constant these changes in R translated to changes in the sheet and rill erosion national average of +2 to +16 per cent in croplands, -2 to +10 per cent in pasturelands and -5 to +22 per cent in rangelands under the eight scenarios. Land with erosion rates above the soil loss tolerance (T) level and land classified as highly erodible (erodibility index > 8) also increased slightly. (Copyright (c) 1993 John Wiley and Sons, Ltd.)
||Pub. in Land Degradation and Rehabilitation, v4 p61-72 1993. Prepared in cooperation with ManTech Environmental Technology, Inc., Corvallis, OR.
|NTIS Title Notes
||Reprint: Implications of Climate Change Scenarios for Soil Erosion Potential in the USA.
||48E; 55C; 98C
||PC A03/MF A01