Hydrochemical characteristics and water quality assessment of groundwater and stream water in a heavy agricultural basin, Korea
Abstract
This study was conducted to assess the water quality of groundwater and stream water in the Haean basin of Korea, which has been used for a heavy agricultural area. For this purpose, groundwater (n=115) and stream water (n=113) were sampled for 2011-2014 and analyzed by multivariate statistical analyses. The major cations of groundwater and stream water showed the dominance of Ca and Si, while the major anions showed the dominance of HCO3 and NO3. Especially, most of the NO3 concentrations were less than 50 mg/L. According to Wilcox diagram, all samples of both groundwater and stream water fell under excellent to good. Based on US Salinity Laboratory diagram, the water quality showed that majority of the samples fell in the C1-S1 (low salinity with low sodium) category and a few samples fell in the C2-S1 (medium salinity with low sodium) category. Consequently, groundwater and stream water can be used as agricultural irrigation according to the standards. Also, despite the highly agricultural area, both groundwater and stream water were not contaminated by nitrate. This research was supported by Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Science, ICT & Future Planning (No. NRF-2015R1A4A1041105).
- Publication:
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AGU Fall Meeting Abstracts
- Pub Date:
- December 2016
- Bibcode:
- 2016AGUFM.H13A1326Y
- Keywords:
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- 1831 Groundwater quality;
- HYDROLOGYDE: 1848 Monitoring networks;
- HYDROLOGYDE: 1871 Surface water quality;
- HYDROLOGY