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http://dx.doi.org/10.11614/KSL.2020.53.4.355

Change in Distribution Characteristics of Surface Sediments of Weir Section in Nakdong River  

Lee, Kwon Chul (Nakdong River Environmental Research Center, National Institute of Environmental Research)
Kim, Hyoung Geun (Nakdong River Environmental Research Center, National Institute of Environmental Research)
Lee, Hye Yun (Nakdong River Environmental Research Center, National Institute of Environmental Research)
Yang, Deuk Seok (Nakdong River Environmental Research Center, National Institute of Environmental Research)
Kim, Shin (Nakdong River Environmental Research Center, National Institute of Environmental Research)
Publication Information
Korean Journal of Ecology and Environment / v.53, no.4, 2020 , pp. 355-364 More about this Journal
Abstract
This study was carried out to investigated changes in sediments in the eight weir sections of Nakdong River. Sediments were collected and analyzed for Grain Size, Ignition loss, Total Organic Carbon, Total Nitrogen, Total Phosphorus, and Meta. The upstream of the weir was found that fine-grained sediments have repeated increases and decreases. It was found that coarse-grained sediments were being maintained in the downstream part of the weir. The sediments Ignition Loss, Total Organic Carbon, Total Nitrogen, Total Phosphorus are strongly correlated with Grain Size, and these increased at the point where sediments are fine. In the case of metal, the concentration increased across the board, and the correlation with Grain Size, Ignition loss, Total Organic Carbon, Total Nitrogen, and Total Phosphorus was weak. Although there were some sections where fine-grained sediments, organic materials, nutrients, metals increased in the Nakdong River, the overall pollution level is considered weak.
Keywords
Nakdong River; weir; sediments; grain size; metals;
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Times Cited By KSCI : 14  (Citation Analysis)
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