A diagnosis-prescription system for nitrogen management in environment.
A decision support system in the framework of the geographic information system (GIS) and subsurface flow model, Hydrosub, were used to identify critical areas from simulated spatial distributions of relative nitrogen export. Diagnosis and prescription Expert Systems (ES) are developed and applied to the identification of probable causes of excessive nitrogen export and selection of appropriate Best Management Practices (BMPs). The result is a spatially distributed set of recommended Best Management Practices that are feasible economically and environmentally. For the study watershed, using catch crops and rhizobium-legume (instead of using conventional commercial fertilizers) were the most recommended Best Management Practices.
Sadegh Zadeh
Kouroush
K
Fischell Department of Bioengineering, University of Maryland, College Park, MD 20742, USA. kouroush@eng.umd.edu
Montas
Hubert J
HJ
Shirmohammadi
Adel
A
Sadeghzadeh
Ali
A
Gudla
Prabhakar R
PR
D000383:Agriculture / Q000379:methods; D019985:Benchmarking; D018556:Crops, Agricultural; D004784:Environmental Monitoring; D005308:Fertilizers / Q000032:analysis; D040362:Geographic Information Systems; D005843:Geography; D008396:Maryland; D009584:Nitrogen / Q000032:analysis*; D016961:Rhizobium leguminosarum / Q000737:chemistry; D014874:Water Pollutants, Chemical / Q000032:analysis*; D014876:Water Pollution / Q000517:prevention & control*; D014881:Water Supply
D005308:Fertilizers; D014874:Water Pollutants, Chemical; D009584:Nitrogen