Modified GLEAMS assessment of sludge application on irrigated desert agriculture

Steven J. Wedwick, Peter M Waller

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

In response to the need for improved agricultural management practices, the GLEAMS model was modified to include a component that models irrigation practices. This component models furrow, basin, and border irrigation. Other irrigation practices, such as sprinkler or drip, can be modeled if the performance parameters are given. After completing the modifications, a partial validation was performed using soil nitrate data from a municipal sludge experiment performed on a cotton farm in Marana, Arizona. The predicted results from the model (GLEAMS-IR) were within the EPA's recommended factor of 3.0 for each of the sludge treatments evaluated. Sensitivity analyses were performed using a standard, or deterministic, method and a stochastic, Monte Carlo method. The results of the standard sensitivity analysis were distinguished as no sensitivity, low sensitivity, moderate sensitivity, high sensitivity, and very high sensitivity. The Monte Carlo results were ranked by significance (F value.).

Original languageEnglish (US)
Title of host publicationPaper - American Society of Agricultural Engineers
Editors Anon
PublisherASAE
Volume2
StatePublished - 1997
Externally publishedYes
EventProceedings of the 1997 ASAE Annual International Meeting. Part 1 (of 3) - Minneapolis, MN, USA
Duration: Aug 10 1997Aug 14 1997

Other

OtherProceedings of the 1997 ASAE Annual International Meeting. Part 1 (of 3)
CityMinneapolis, MN, USA
Period8/10/978/14/97

Fingerprint

GLEAMS model
Sewage
Agriculture
sludge
deserts
border irrigation
basin irrigation
irrigation
agriculture
Monte Carlo Method
Monte Carlo method
furrow irrigation
agricultural management
sprinklers
Practice Management
Nitrates
Soil
cotton
nitrates
farms

ASJC Scopus subject areas

  • Agricultural and Biological Sciences (miscellaneous)

Cite this

Wedwick, S. J., & Waller, P. M. (1997). Modified GLEAMS assessment of sludge application on irrigated desert agriculture. In Anon (Ed.), Paper - American Society of Agricultural Engineers (Vol. 2). ASAE.

Modified GLEAMS assessment of sludge application on irrigated desert agriculture. / Wedwick, Steven J.; Waller, Peter M.

Paper - American Society of Agricultural Engineers. ed. / Anon. Vol. 2 ASAE, 1997.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Wedwick, SJ & Waller, PM 1997, Modified GLEAMS assessment of sludge application on irrigated desert agriculture. in Anon (ed.), Paper - American Society of Agricultural Engineers. vol. 2, ASAE, Proceedings of the 1997 ASAE Annual International Meeting. Part 1 (of 3), Minneapolis, MN, USA, 8/10/97.
Wedwick SJ, Waller PM. Modified GLEAMS assessment of sludge application on irrigated desert agriculture. In Anon, editor, Paper - American Society of Agricultural Engineers. Vol. 2. ASAE. 1997
Wedwick, Steven J. ; Waller, Peter M. / Modified GLEAMS assessment of sludge application on irrigated desert agriculture. Paper - American Society of Agricultural Engineers. editor / Anon. Vol. 2 ASAE, 1997.
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