Record Display for the EPA National Library Catalog


Main Title Simulation model for watershed management planning
Author Simons, D. B. ; Li, R-M. ; Eggert, K. G. ; Ho, J. N-H. ; Fullerton, W. T.
Other Authors
Author Title of a Work
Simons, Daryl B.
CORP Author Colorado State Univ., Fort Collins. Dept. of Civil Engineering.;Environmental Research Lab., Athens, GA.
Publisher U.S. Environmental Protection Agency, Environmental Research Laboratory ;
Year Published 1984
Report Number EPA 600/3-84-028a ; PB84-158153; EPA-R-805131; EPA-600/3-84-028A
Stock Number PB84-158153
OCLC Number 13117291
Subjects Watershed management--United States
Additional Subjects Land use ; Watersheds ; Water pollution ; Agriculture ; Forestry ; Fluid infiltration ; Mathematical models ; Sediment transport ; Water flow ; Stream erosion ; Embankments ; Nutrients ; Nitrification ; Adsorption ; Temperature ; Surface water runoff ; Snowmelt ; Radiation ; Water balance ; Evapotranspiration ; Biochemical oxygen demand ; Soil water plant relationships ; Nonpoint sources
Library Call Number Additional Info Location Last
ESAD  EPA 600-3-84-028a Region 10 Library/Seattle,WA 05/23/1997
NTIS  PB84-158153 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 2 v. : ill. ; 28 cm.
Evaluation of nonpoint source pollution problems requires an understanding of the behavioral response to an ecosystem to the impacts of land use activities on individual components of that ecosystem. By analyzing basic ecosystem processes and impacts of land use activities on specific factors governing production and transport of nonpoint source pollution, it is possible to predict cause-effect relationships between these activities and water quality. To facilitate these predictions, a simulation model for evaluation of alternative agricultural and silvicultural practices as a function of both environmental and management parameters was developed. Nonpoint source pollution from these activities and events may include loading of streams by: sediment from surface erosion, mass wasting, channel bottom and bank erosion; thermal energy; biological oxygen demanding contaminants; organic debris; nutrients and dissolved solids; pesticides; and other waste materials either in solution or adsorbed tp sediments. The model consists of a soil-plant-atmospheric water component for adjusting soil moisture as a function of evaporation, evapotranspiration, soil-water hydraulics, and snowmelt.
"February 1984." "EPA-600/3-84-028a.--v.1." "PB84-158153." Includes bibliographical references.
Contents Notes
v. 1. Model theory and formulation -- v. 2. Model user manual.