• Title/Summary/Keyword: 입조조사

Search Result 2, Processing Time 0.021 seconds

Characteristics of Particle Composition and Organic Matter Distribution for Tidal Flat Sediments in the Saemankeum Area (새만금 갯벌의 입도조성과 유기물질 분포특성)

  • YOU Sun-Jae;KIM Jong-Gu;CHO Eun-Il
    • Korean Journal of Fisheries and Aquatic Sciences
    • /
    • v.36 no.1
    • /
    • pp.49-54
    • /
    • 2003
  • This study was conducted to evaluate characteristics of particle composition and organic matter distribution for tidal flat sediments in the Saemankeum area. The tidal flat sediments consist of predominantly sand and a little of silt, whereas the content of clay was very low. The analyzed values of particles of tidal flat sediments were in the range of $4.60\~10.90\;{\phi}$ for mean size and $-0.1\~1.75\;{\phi}$ for sorting and $-1.0\~0.92\;{\phi}$ for skewness and $0.27\~6.75\;{\phi}$ for kurtosis. The tidal flat sediments are interpreted as representing significant effect of the environmental change due to the construction of Saemankeum embankment. The ORP was in the range of -133$\~$200 (mean 73) mV. But 24 stations of the total stations showed reduction condition, The concentration of CODs was in the range of 17.54$\~$6,176.3 mg/kg. The ratio of C/S was 0.02$\~$0.45 (mean 0.24). And the Saemankeum tidal flat sediment was a little effected by input organic pollutants from upper site area. Conclusively, conservation of the Saemankeum tidal flat sediment was requested because it is for the growing fishery and low organic matter.