Drainage‐Subirrigation Effect on Water Quality in Georgia Flatwoods
Publication: Journal of Irrigation and Drainage Engineering
Volume 117, Issue 1
Abstract
The effects of controlled‐drainage‐subirrigation (CD‐SI) systems on subsurface and outflow water quality must be evaluated before these systems can be promoted for use in the Georgia flatwoods region of the eastern Coastal Plain. In this paper, Nitrate‐nitrogen (N), ammonium‐N, and orthophosphorous (P) concentrations are measured from shallow subsurface wells and outlets of a CD‐SI system in the Georgia flatwoods for comparison to adjacent forested and grassland areas (the most common current land uses). Nitrate‐N concentrations did not exceed 10 mg/L from any of the outflow samples although almost 6% of the well samples taken from the CD‐SI area had concentrations exceeding 10 mg/L, Nitrate‐N concentrations in most of the wells in the CD‐SI area were significantly higher than in the forested and cleared areas. Ammonium‐N and ortho‐P concentrations were relatively low and do not appear to be a problem based on this limited data. No significant differences in ammonium‐N and ortho‐P concentrations were shown between any of the sites. Ammonium‐N concentrations did exceed 2 mg/L from at least one sample of the scrub forest, one of the CD‐SI blueberry sites, an open ditch (1.8 m depth), and one of the cleared unirrigated sites. Ortho‐P concentrations ranged from 0 to 1.94 mg/L, with average concentrations from all sites near 0.1 mg/L.
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References
1.
Bengtson, R. L., Carter, C. E., Morris, H. F., and Kowalczuk, J. G. (1982). “Reducing water pollution with subsurface drainage.” ASAE Paper No. 82‐2554, American Society of Agricultural Engineers, St. Joseph, Mich.
2.
Downing, K. M., and Merkens, J. C. (1955). “The influence of dissolved oxygen concentration on the toxicity of unionized ammonia to rainbow trout.” Annals Appl. Biology, 43, 243–246.
3.
Evans, R. O., Gilliam, J. W., and Skaggs, R. W. (1989). “Managing water table management systems for water quality.” ASAE Paper No. 89‐2129, American Society of Agricultural Engineers, St. Joseph, Mich.
4.
Gilliam, J. W., and Skaggs, R. W. (1986). “Controlled agricultural drainage to maintain water quality.” J. Irrig. and Drainage Engrg., ASCE, 112(3), 254–263.
5.
Guitjens, J. C., Tsui, P.‐S., and Thran, D. F. (1984). “Quantity and quality variations in subsurface drainage.” Trans. of the ASAE, 27(2), 425–428.
6.
Jacobs, T. C., and Gilliam, J. W. (1985). “Riparian losses of nitrate from agricultural drainage waters.” J. Envir. Quality, 14(4), 472–478.
7.
Lowrance, R. R. (1981). “Nutrient cycling in an agricultural watershed: Waterborne nutrient input/output budgets for the riparian zone,” thesis presented to the University of Georgia, at Athens, Ga., in partial fulfillment of the requirements for the degree of Doctor of Philosophy.
8.
Lowrance, R. R., Todd, R. L., and Asmussen, L. E. (1984). “Nutrient cycling in an agricultural watershed II: Streamflow and artificial drainage.” J. Envir. Quality, 13(1), 27–32.
9.
Margheim, G. A. (1988). “Implementing swampbuster: Two years of progress.” J. of Soil and Water Conservation, 43(1), 27–29.
10.
Ritter, W. F., Chirnside, A. E. M., and Scarborough, R. W. (1985). “Leaching of nitrates under irrigation on Coastal Plain soils.” ASAE Paper No. 85‐2613, American Society of Agricultural Engineers, St. Joseph, Mich.
11.
SAS user's guide: Statistics, version 5 edition. (1985). SAS Institute, Inc., Cary, N.C.
12.
Schwab, G. O., and Logan, T. J. (1982). “Sediment and nutrients in effluent from subsurface drains.” ASAE Paper No. 82‐2550, American Society of Agricultural Engineers, St. Joseph, Mich.
13.
Shirmohammadi, A., Thomas, D. L., Threadgill, E. D., and Smith, M. C. (1990). “Drainage‐subirrigation system evaluation for Georgia flatwoods.” Transactions of the ASAE (in press).
14.
Skaggs, R. W., Gilliam, J. W., and Barnes, J. S. (1982). “Hydrologic and water quality effects of agricultural land development in the North Carolina tidewater region.” ASAE Paper No. 82‐2552, American Society of Agricultural Engineers, St. Joseph, Mich.
15.
Soil survey of Pierce County, Georgia. (1968). United States Department of Agriculture Soil Conservation Service. U.S. Government Printing Office, Washington, D.C.
16.
Thomas, D. L., Smith, M. C., Leonard, R. A., and daSilva, F. J. K. (1990). “Simulated effects of rapeseed production alternatives on pollution potential in the Georgia Coastal Plain.” J. of Soil and Water Conservation, 45(1), 148–154.
17.
Thomas, D. L., Smith, M. C., Shirmohammadi, A., and Perry, C. D. (1989). “Evaluation of control devices for water table management systems.” ASAE Paper No. 89‐2136, American Society of Agricultural Engineers, St. Joseph, Mich.
18.
Thomas, D. L., Shirmohammadi, A., and Lowrance, R. R. (1987). “Evaluation of subsurface and outflow water quality from a drainage‐subirrigation system in the Georgia flatwoods.” Technical Completion Report, USGS, Project No. G‐900(07), ERC 03‐86, Georgia Institute of Technology, Atlanta, Ga.
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Copyright © 1991 ASCE.
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Published online: Jan 1, 1991
Published in print: Jan 1991
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