Main Title |
Implications of Climate Change Scenarios for Soil Erosion Potential in the USA. |
Author |
Phillips, D. L. ;
White, D. ;
Johnson, C. B. ;
|
CORP Author |
Corvallis Environmental Research Lab., OR. ;ManTech Environmental Technology, Inc., Corvallis, OR. |
Publisher |
c1993 |
Year Published |
1993 |
Report Number |
EPA/600/J-93/346; |
Stock Number |
PB93-229649 |
Additional Subjects |
Soil erosion ;
Climate change ;
General circulation models ;
Atmospheric effects ;
Climate models ;
Greenhouse gases ;
Rainfall ;
Precipitation(Meteorology) ;
Soil mechanics ;
Erosion rates ;
Surface runoff ;
Maps ;
Reprints ;
Universal soil loss equation
|
Holdings |
Library |
Call Number |
Additional Info |
Location |
Last Modified |
Checkout Status |
NTIS |
PB93-229649 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
Collation |
14p |
Abstract |
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.) |