Record Display for the EPA National Library Catalog


OLS Field Name OLS Field Data
Main Title Economic Evaluation of the Effect of Selected Crop Practices on Nonagricultural Uses of Water.
Author Onishi, H. ; Narayanan, A. S. ; Takayama, T. ; Swanson., E. R. ;
CORP Author Illinois Univ., Urbana. Water Resources Center.
Year Published 1974
Report Number WRC-RR-79 ;UILU-WRC-74-0079; DI-14-31-0001-3272; OWRR-B-049-ILL; W74-07828 ; OWRR-B-049-ILL(5)
Stock Number PB-232 161
Additional Subjects Water pollution ; Agricultural economics ; Illinois ; Water quality ; Sediments ; Farm crops ; Watersheds ; Surface waters ; Linear programming ; Farm income ; Economic evaluation ; Nitrogen inorganic compounds ; Water pollution economics
Library Call Number Additional Info Location Last
NTIS  PB-232 161 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 06/23/1988
Collation 60p
Cropping systems may have an unfavorable influence on the quality of nearby surface water. Linear programming methods were used to assess the impact of improvements in certain water quality characteristics on economically optimal crop systems. Thus, the effect of crop practices on water quality is analyzed indirectly by assuming that farmers would alter their cropping practices in the most economical way in order to conform to various water-quality constraints. A 1,200-acre watershed was used to illustrate the procedure. Sediment entering the reservoir was treated as a variable constraint on maximization of farm income. Requiring successively lower amounts of sediment to enter the reservoir caused farm income to decrease at an increasing rate. (Modified author abstract)