Sediment-related transport of nutrients from southwestern watersheds

TitleSediment-related transport of nutrients from southwestern watersheds
Publication TypeJournal Article
Year of Publication1991
AuthorsBolton S.M, Ward T.J, Cole R.A
JournalJournal of Irrigation and Drainage
Volume117
Pagination736-747
Date Published1991
Accession NumberJRN00140
Call Number00021
Keywordsarticle, articles, hydrology, nutrients, hydrology, sediment transport, journal, journals, nitrogen, hydrology, nutrients, hydrology, nutrients, hydrology,runoff, phosphorus, hydrology, phosphorus,runoff, rainfall simulation,hydrology, runoff, SEE <HYDROLOGY>
Abstract

Data from rainfall simulation experiments conducted in Arizona and New Mexico were used to identify relationships between total suspended sediment (TSS) concentrations (kg/ha/mm of runoff) in runoff and concentrations (kg/ha/mm of runoff) of total phosphorus (TP), total volatile suspended sediment (TVSS), and total nitrogen (TN). The units of kg/ha/mm of runoff are equivalent to mg/l divided by 100. Data were collected from pinyon-juniper, ponderosa pine, short grass prairie, creosote bush, and bottomland vegetation types. Lumping data from these five vegetation types yielded a relationlship for total phosphorus of TP = 0.0013(TSS)0.83 with a linear correlation coefficient of r = 0.77. The relationship for total volatile suspended sediment was TVSS = 0.274(TSS)0.72 (r = 0.91). A poor relationship was found for total nitrogen with TN = 0.008(TSS)0.15 (with r = 0.11). These relationships were validated using data from other rainfall simulation experiments and naturally occurring ephemeral streamflow in southern New Mexico.

URLfiles/bibliography/JRN00140.pdf
DOI10.1061/(asce)0733-9437(1991)117:5(736)