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Problem Statement:
Excessive nutrient loading, especially phosphorus (P), to
surface waters can deteriorate water quality. For P, the primary transport
mechanism from upland areas into surface water systems has been considered
to be surface runoff, with subsurface transport considered to be
negligible. However, local or
regional conditions can lead to conditions where subsurface transport may
be significant. The objective of this research was to determine the
importance of subsurface transport of P along streams or rivers in the
Ozark region of Kansas, Missouri, Oklahoma, and Arkansas, which are
characterized by cherty (i.e. gravelly) subsoils. It is hypothesized that alluvial
systems such as these act as transient storage zones for nutrients such as
P, and can significantly contribute to baseflow P levels in surface
waters. In addition, these
systems may provide a fast and efficient method of subsurface P transport
if there is hydraulic connectivity with surface runoff.
Presentations:
Poster Presentation on Initial
Project Results (First
Dye Tracer Experiment)
WRAB Presentation – January
11, 2008
John Fuchs Thesis Presentation
OWRRI
Presentation – August 1, 2008
Conference Proceedings/Publications:
Fuchs,
J.W., G.A. Fox, D. Storm, C. Penn, and G.O. Brown. 2008. Subsurface
transport
of phosphorus in riparian floodplains: Tracer
and phosphorus transport experiments.
ASABE Paper No. 084614. St. Joseph, Mich.:
ASABE.
Fuchs, J.W., G.A. Fox, D.E. Storm,
C. Penn, and G.O. Brown. Subsurface transport of
phosphorus in riparian floodplains:
Influence of preferential flow paths. Journal of Environmental Quality
(Accepted for Publication): In Press.
Current Funding Support:
Oklahoma
State University, Division of Agricultural and Natural Resources, Team
Initiative Program (TIP) Grant, “Interaction of Non-Point Source
Contaminant Loads in Streams with Alluvial Ground Water”, January 1,
2008-December 31, 2009
Research
supported by the Oklahoma Water Resources Research Institute/Oklahoma Water
Resources Board titled “Subsurface Transport of Phosphorus to
Streams: A Potential Source of Phosphorus not Alleviated by Best Management
Practices”, March 1, 2007-February 28, 2008.
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