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Titolo:
Isotope evaluation of nitrate attenuation in restored and native riparian zones in the Kankakee watershed, Indiana
Autore:
Sidle, WC; Roose, DL; Yzerman, VT;
Indirizzi:
US EPA, Isotope Hydrol Lab, Cincinnati, OH 45224 USA US EPA Cincinnati OHUSA 45224 otope Hydrol Lab, Cincinnati, OH 45224 USA Groundwater Res Co, Harrison, OH 45030 USA Groundwater Res Co Harrison OHUSA 45030 r Res Co, Harrison, OH 45030 USA
Titolo Testata:
WETLANDS
fascicolo: 2, volume: 20, anno: 2000,
pagine: 333 - 345
SICI:
0277-5212(200006)20:2<333:IEONAI>2.0.ZU;2-8
Fonte:
ISI
Lingua:
ENG
Soggetto:
NATURAL-WATERS; GROUND-WATER; UNSATURATED ZONE; COASTAL-PLAIN; SANDY AQUIFER; NITROGEN; DENITRIFICATION; FOREST; N-15; O-18;
Keywords:
nitrate; isotope; riparian zone; Kankakee watershed; Indiana;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Citazioni:
55
Recensione:
Indirizzi per estratti:
Indirizzo: Sidle, WC US EPA, Isotope Hydrol Lab, 5995 Ctr Hill Ave, Cincinnati, OH 45224 USA US EPA 5995 Ctr Hill Ave Cincinnati OH USA 45224 i, OH 45224 USA
Citazione:
W.C. Sidle et al., "Isotope evaluation of nitrate attenuation in restored and native riparian zones in the Kankakee watershed, Indiana", WETLANDS, 20(2), 2000, pp. 333-345

Abstract

Isotopic analyses of oxygen and hydrogen of water (delta(18)O and delta D)and nitrogen and oxygen of nitrate (delta(15)N and delta(18)O) are used inconjunction with conventional water chemistry and hydrologic measurements to investigate water flow and nitrogen cycling mechanisms through two riparian zones adjacent to upland agricultural fields. Within the Kankakee watershed of northwestern Indiana, a native riverine wetland was compared to a constructed riverine wetland to assess the wetland restoration in terms of water how and nitrate attenuation mechanisms and efficiency. Conditions in the constructed wetland are controlled by a system of individual cells separated by dikes and levees and into which water is periodically pumped, whilethe native wetland occupies an area of remnant river meanders or oxbows. Analyses of samples taken from well transects across both wetlands suggest that water flow across the constructed wetland has been greatly altered. Nitrate cycling characteristics show significant differences between the two wetlands and particularly, nitrate attenuation efficiency is greatly reducedin the constructed wetland.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 12/07/20 alle ore 03:18:33