HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS		QUICK SEARCH:   [advanced] Author: Keyword(s): Year:  Vol:  Page:

This Article Figures Only Full Text Free Full Text (PDF) Free Alert me when this article is cited Alert me if a correction is posted Services Related articles in JEQ Similar articles in this journal Similar articles in ISI Web of Science Similar articles in PubMed Alert me to new issues of the journal Download to citation manager Citing Articles Citing Articles via HighWire Citing Articles via ISI Web of Science (10) Citing Articles via Google Scholar Google Scholar Articles by Vellidis, G. Articles by Hubbard, R. K. Search for Related Content PubMed PubMed Citation Articles by Vellidis, G. Articles by Hubbard, R. K. Agricola Articles by Vellidis, G. Articles by Hubbard, R. K. Related Collections Water Quality Wetlands and Aquatic Processes Nutrients Ecosystem Restoration Water Pollution

TECHNICAL REPORTS
Wetlands and Aquatic Processes

Nutrient Transport in a Restored Riparian Wetland

^a Biological and Agricultural Engineering Dep., Univ. of Georgia, Tifton, GA 31793-0748
^b Southeast Watershed Research Laboratory, USDA-ARS, Tifton, GA 31793

^* Corresponding author (yiorgos{at}tifton.uga.edu)

Received for publication April 29, 2002. We determined the water quality effect of a restored forested riparian wetland adjacent to a manure application area and a heavily fertilized pasture in the Georgia Coastal Plain. The buffer system was managed based on USDA recommendations and averaged 38 m in width. Water quality and hydrology data were collected from 1991–1999. A nitrate plume in shallow ground water with concentrations exceeding 10 mg NO₃–N L^-1 moved into the restored forested riparian wetland. Along most of the plume front, concentrations were less than 4 mg NO₃–N L^-1 within 25 m. Two preferential flow paths associated with past hydrologic modifications to the site allowed the nitrate plume to progress further into the restored forested riparian wetland. Surface runoff total N, dissolved reactive phosphorus (DRP), and total P concentrations averaged 8.63 mg N L^-1, 1.37 mg P L^-1, and 1.48 mg P L^-1 , respectively, at the field edge and were reduced to 4.18 mg N L^-1, 0.31 mg P L^-1, and 0.36 mg P L^-1 , respectively, at the restored forested riparian wetland outlet. Water and nutrient mass balance showed that retention and removal rates for nitrogen species ranged from a high of 78% for nitrate to a low of 52% for ammonium. Retention rates for both DRP and total P were 66%. Most of the N retention and removal was accounted for by denitrification. Mean annual concentrations of total N and total P leaving the restored forested riparian wetland were 1.98 mg N L^-1 and 0.24 mg P L^-1, respectively.

Abbreviations: DRP, dissolved reactive phosphorus • LIFE, low-impact flow event • TKN, total Kjeldahl nitrogen

Related articles in JEQ:

This Issue in Journal of Environmental Quality

JEQ 2003 32: 377-382. [Full Text]  

This article has been cited by other articles:

				P. M. Mayer, S. K. Reynolds Jr., M. D. McCutchen, and T. J. Canfield Meta-Analysis of Nitrogen Removal in Riparian Buffers J. Environ. Qual., June 27, 2007; 36(4): 1172 - 1180. [Abstract] [Full Text] [PDF]

				T. K. Muenz, S. W. Golladay, G. Vellidis, and L. L. Smith Stream buffer effectiveness in an agriculturally influenced area, southwestern georgia: responses of water quality, macroinvertebrates, and amphibians. J. Environ. Qual., September 1, 2006; 35(5): 1924 - 1938. [Abstract] [Full Text] [PDF]

				J. L. Starr, A. M. Sadeghi, and Y. A. Pachepsky Monitoring and Modeling Lateral Transport through a Large In Situ Chamber Soil Sci. Soc. Am. J., October 27, 2005; 69(6): 1871 - 1880. [Abstract] [Full Text] [PDF]

				R. Lowrance and J. M. Sheridan Surface Runoff Water Quality in a Managed Three Zone Riparian Buffer J. Environ. Qual., September 8, 2005; 34(5): 1851 - 1859. [Abstract] [Full Text] [PDF]

				P. G. Hunt, T. A. Matheny, and K. C. Stone Denitrification in a Coastal Plain Riparian Zone Contiguous to a Heavily Loaded Swine Wastewater Spray Field J. Environ. Qual., November 1, 2004; 33(6): 2367 - 2374. [Abstract] [Full Text] [PDF]