Korean Journal of Environmental Agriculture (한국환경농학회지)

The Korean Society of Environmental Agriculture (한국환경농학회)
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Seasonal Variation of Water Quality of the Watersheds in the Agricultural Environment Promotion Zone

환경농업조성지구내 용수원 및 채수시기별 수질비교

  • Published : 2002.09.30
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Abstract

A study was conducted to investigate the seasonal changes in water quality of watershed in the Agricultural Environment Promotion Zone. Samples collected were 12 GW (ground water), 2 IW (irrigation water), 2 SW (stream water) in An-Dong City, 4 GW, 6 IW, 11 SW in Young-Yang Gun, and sampling was conducted separately during dry and rainy season. In the ground water, EC and ionic species, except pH, were higher than those in stream water, and especially $NO_3-N$ concentration exceeded the limitation of drinking water. Concentration of ions decreased as the sampling depth was far from the soil surface. During a rainy season, the concentrations of $NO_3-N$ and K in the stream water were slightly higher than those during season. COD was lower during dry season in Yong-Yang, while the trend was contrasted to An-Dong. These results suggest that ground water was polluted by fertilization and compost while streamwater was polluted by loss of soil and organic during the rainy season. Principal chemical components related with changing water quality were EC, $NO_3^-$, Ca, Mg, Na, $Cl^-$, $Cl^-$, $SO_4^-$ in ground water, whereas $NH_4-N$, K, Mg, $Cl^-$, $SO_4^-$ in stream water.

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References

  1. Kim, C. K. (2000) Agricultural Prospect 2000, Korea Rural Economic Institute: 101-108
  2. Hall, D. W. (1992) Effect of nutrient management on nitrate levels in ground water near Ephrate, Pennsylvania.Ground water 30, 720 https://doi.org/10.1111/j.1745-6584.1992.tb01558.x
  3. Adriano, D. C., Pratt, P. F. and Takatori, F. H (1972) Nitrate in saturated zone of an alluvial soil in relation to fertilizer nitrogen rate and irrigation level, J. Environ.Qual. 1, 418-422 https://doi.org/10.2134/jeq1972.00472425000100040019x
  4. Walker, W. G., Bouma, J., Kenney, D. R. and Magdof, F. R. (1973) Nitrogen transformation during subsurface disposal of septic tank effluent in sand: I. Soil transformations, J. Environ. Qual. 2, 475-480 https://doi.org/10.2134/jeq1973.00472425000200040016x
  5. Choi, J. D. (2000) The study of monitoring underwater quality along Buk Han River Alluvial Plain. J. Korean Sci. on Water Quality 16(3), 283-294
  6. Ross, J .D. (1963) Deficient activity of DPNH dependent methemoglobin diaphorase in cord blood erythrocytes, Blood 21, 51-62
  7. National Research Council. (1978) Nitrate : An environmental assessment, National Academy of Science, Washington, D.C
  8. Minister of Environment (2000) Official Methods for Water Pollutants Analysis
  9. APHA-AWWA-WPCF (1992) Standard methods for the examination of water and waster water, 18th, Washington D.C.
  10. Eckstein, Y. (1969) Hydrogeology of a volcanic island Cheju do, Korea, Bull. of Internat'I Ass. Sci. Hydrol. 14, 45-60 https://doi.org/10.1080/02626666909493753
  11. Dancer, W. S. (1975) Leaching losses of ammonium and nitrate in reclamation of sand spoils in corn well, J.Environ. Qual. 4, 499-504 https://doi.org/10.2134/jeq1975.00472425000400040016x
  12. Kim J. H. (2000) Variation of water chemical components and estimation of suitability as the source for irrigation water at Seolake in Suwon. Korean J.Environ. Agric. 19(3), 242-246
  13. Strouf, O. (1986) Chemical pattern recognition, John Wiley & Sons Inc. 105-136