Modeling excessive nutrient loading in the environment.


Journal Article

Models addressing excessive nutrient loading in the environment originated over 50 years ago with the simple nutrient concentration thresholds proposed by Sawyer (1947. Fertilization of lakes by agricultural and urban drainage. New Engl. Water Works Assoc. 61, 109-127). Since then, models have improved due to progress in modeling techniques and technology as well as enhancements in scientific knowledge. Several of these advances are examined here. Among the recent approaches in modeling techniques we review are error propagation, model confirmation, generalized sensitivity analysis, and Bayesian analysis. In the scientific arena and process characterization, we focus on advances in surface water modeling, discussing enhanced modeling of organic carbon, improved hydrodynamics, and refined characterization of sediment diagenesis. We conclude with some observations on future needs and anticipated developments.

Full Text

Duke Authors

Cited Authors

  • Reckhow, KH; Chapra, SC

Published Date

  • January 1999

Published In

Volume / Issue

  • 100 / 1-3

Start / End Page

  • 197 - 207

PubMed ID

  • 15093118

Pubmed Central ID

  • 15093118

Electronic International Standard Serial Number (EISSN)

  • 1873-6424

International Standard Serial Number (ISSN)

  • 0269-7491

Digital Object Identifier (DOI)

  • 10.1016/s0269-7491(99)00092-5


  • eng