SPNM, A MODEL FOR PREDICTING SEDIMENT, PHOSPHORUS, AND NITROGEN YIELDS FROM AGRICULTURAL BASINS1

Abstract

ABSTRACT: A model called SPNM from the words “sediment‐phosphorus‐nitrogen model” was developed for simulating agricultural contributions to water pollution. SPNM is designed to predict sediment, P, and N yields for individual storms on small basins and to route these yields through streams and valleys of large basins. Users need no computer programming experience because the model is a problem‐oriented computer language. SPNM is useful in planning water resources projects and in research. Tests of the model on a watershed provided realistic results.

Keywords

WatershedSedimentPhosphorusHydrology (agriculture)StormSTREAMSEnvironmental scienceAgricultureDrainage basinNitrogenPollutionNonpoint source pollutionWater resource managementComputer scienceGeologyEcologyOceanographyGeomorphologyGeographyGeotechnical engineeringChemistryArchaeologyMachine learning

Affiliated Institutions

Grassland, Soil and Water Research Laboratory US

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Publication Info

Year: 1980
Type: article
Volume: 16
Issue: 5
Pages: 843-848
Citations: 105
Access: Closed

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APA Style

                            
                                    J. R. Williams
                                
                            (1980). 
                            SPNM, A MODEL FOR PREDICTING SEDIMENT, PHOSPHORUS, AND NITROGEN YIELDS FROM AGRICULTURAL BASINS<sup>1</sup>. 
                            JAWRA Journal of the American Water Resources Association
                            , 16
                            (5)
                            , 843-848.
                            https://doi.org/10.1111/j.1752-1688.1980.tb02497.x

Identifiers

DOI: 10.1111/j.1752-1688.1980.tb02497.x