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| Titel |
The use of wetlands and chemical injections to control sediment and soluble phosphorus |
| VerfasserIn |
Jim Ippolito, Dave Bjorneberg |
| Konferenz |
EGU General Assembly 2015
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| Medientyp |
Artikel
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| Sprache |
Englisch
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| Digitales Dokument |
PDF |
| Erschienen |
In: GRA - Volume 17 (2015) |
| Datensatznummer |
250102106
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| Publikation (Nr.) |
 EGU/EGU2015-1386.pdf |
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| Zusammenfassung |
| Irrigated agriculture accounts for ~25% of the total US cropland, yet comprises 55% of the
US crop value. These systems play a major role in US production agriculture, and thus it is
important to manage irrigated systems to maintain or improve environmental quality.
Irrigated agriculture in the western has historically utilized furrow irrigation. It has long been
recognized that furrow irrigation causes particle detachment and transport, leading
to increased sediment and nutrient (e.g. P) loads to receiving water bodies. The
use of engineered wetlands in furrow irrigation settings can help capture sediment
and sediment-bound P (>90-95%). One of the main water quality challenges that
exists today is reducing soluble P in irrigation waters returning to receiving water
bodies. This presentation will focus on the use of strategically located wetlands in
conjunction with chemical injections (alum or polyaluminum chloride) to reduce water
soluble P in order to meet total maximum daily P loads in receiving water bodies. |
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