Journal of the Korean earth science society (한국지구과학회지)

The Korean Earth Science Society (한국지구과학회)
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Hydrogeological Characteristics of a Riverine Wetland in the Nakdong River Delta, Korea

  • Jeon, Hang-Tak (Department of Geological Sciences, Pusan National University) ;
  • Cha, Eun-Ji (Korea Environment Institute) ;
  • Lim, Woo-Ri (Department of Geological Sciences, Pusan National University) ;
  • Yoon, Sul-Min (Department of Geological Sciences, Pusan National University) ;
  • Hamm, Se-Yeong (Department of Geological Sciences, Pusan National University)
  • Received : 2021.08.02
  • Accepted : 2021.08.15
  • Published : 2021.08.31
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Abstract

Investigating the physical and chemical properties of riverine wetlands is necessary to understand their distribution characteristics and depositional environment. This study investigated the physical (particle size, color, and type) and chemical properties (organic, inorganic, and moisture contents) of sediments in Samrak wetland, located in the Nakdong River estuary area in Busan, South Korea. The particle size analysis indicated that the hydraulic conductivity values for the coarse grain and the mixture of coarse and fine grains ranged from 2.03 to 3.49×10-1 cm s-1 and 7.18×10-3 to 1.24×10-7 cm s-1, respectively. In-situ water quality and laboratory-based chemical analyses and radon-222 measurement were performed on groundwater and surface water in the wetland and water from the nearby Nakdong River. The physical and chemical properties of Samrak wetland was characterized by the sediments in the vertical and lateral direction. The concentrations of chemical components in the wetland groundwater were distinctly higher than those in the Nakdong River water though the wetland groundwater and Nakdong River water equally belonged to the Ca-HCO3 type.

Keywords

Acknowledgement

This work was supported by Pusan National University Research Grant, 2021.

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