| Title |
Vertical Variation of Sediment Structure and Geochemical Characteristics of Core Sediment in Nakdong River Midstream |
| Authors |
김신 ( Shin Kim ) ; 이규열 ( Kyu Yeol Lee ) ; 김주언 ( Ju Eon Kim ) ; 이권철 ( Kwon Chul Lee ) ; 안정민 ( Jung Min Ahn ) ; 이인정 ( In Jung Lee ) ; 정강영 ( Kang Young Jung ) ; 임태효 ( Tae Hyo Im ) |
| DOI |
https://doi.org/10.15681/KSWE.2015.31.3.304 |
| Keywords |
C/N ratio; Core sediment; C/S ratio; Heavy metal; Nakdong-River; Sedimentary structure |
| Abstract |
In this study, we tried to determine the vertical variation of sediment structure and geochemical characteristics, core sediment was collected in the Nakdong River midstream on August, 2014. Core sediment mainly composed of sand (51.48%) and silt (46.21%) and coarsing upward changed from sM to mS facies. IL and TOC were decreased from lower to upper layer. C/N ratio was lower than 10 so the organic matters were originated from underwater creatures and C/S ratio was decreased from lower to upper layer. Heavy metal (Al, Fe, Zn, Cr, Pb, Ni, Cu, Cd) content were decreased from lower to upper layer and seriously polluted condition is not. These results are thought to be due to the effect of natural and anthropogenic in the fluctuation of flow. |