Role of an impermeable layer in controlling groundwater chemistry in a basaltic aquifer beneath an agricultural field, Jeju Island, South Korea

Jung, Hee Won; Yun, Seong Taek; Kim, Kyoung Ho; Oh, Sang Sil; Kang, Kyung Goo

doi:10.1016/j.apgeochem.2014.03.008

Cited by 19 publications

(3 citation statements)

References 58 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Ref. [57] investigated the spatiotemporal vulnerability of GW quality using a robust PCA (ROBPCA) method. To avoid the drawbacks of classical PCA (such as anomalous observations, overestimating the variance, etc.…”

Section: Multivariate Statisticsmentioning

confidence: 99%

“…Rainfall is a primary factor controlling the intensity of contamination source-pathway-receptor interactions through the process of recharge. Many studies have failed to explain the systematic involvement of rainfall in the due course of the fate and transport of pollutants, except a few [55,57,59,60].…”

Section: Overview Of the Dynamic Groundwater Vulnerability Assessment...mentioning

confidence: 99%

See 1 more Smart Citation

Dynamic Groundwater Contamination Vulnerability Assessment Techniques: A Systematic Review

Banerjee,

Creedon,

Jones

et al. 2023

Hydrology

View full text Add to dashboard Cite

Assuring the quantity and quality of groundwater resources is essential for the well-being of human and ecological health, society, and the economy. For the last few decades, groundwater vulnerability modeling techniques have become essential for groundwater protection and management. Groundwater contamination is highly dynamic due to its dependency on recharge, which is a function of time-dependent parameters such as precipitation and evapotranspiration. Therefore, it is necessary to consider the time-series analysis in the “approximation” process to model the dynamic vulnerability of groundwater contamination. This systematic literature review (SLR) aims to critically review the methods used to evaluate the spatiotemporal assessment of groundwater vulnerability. The PRISMA method was employed to search web platforms and refine the collected research articles by applying certain inclusion and exclusion criteria. Despite the enormous growth in this field in recent years, spatiotemporal variations in precipitation and evapotranspiration were not considered considerably. Groundwater contamination vulnerability assessment needs to integrate the multicriteria decision support tools for better analysis of the subsurface flow, residence time, and groundwater recharge. Holistic approaches need to be formulated to evaluate the groundwater contamination in changing climatic scenarios and uncertainties, which can provide knowledge and tools with which to prepare sustainable groundwater management strategies.

show abstract

Section: Multivariate Statisticsmentioning

confidence: 99%

Section: Overview Of the Dynamic Groundwater Vulnerability Assessment...mentioning

confidence: 99%

Dynamic Groundwater Contamination Vulnerability Assessment Techniques: A Systematic Review

Banerjee,

Creedon,

Jones

et al. 2023

Hydrology

View full text Add to dashboard Cite

show abstract

“…A previous study by Oh et al () estimated the N‐leaching amount into the subsurface based on the observed soil water contents and NO 3 –N concentrations in the surficial soil and concluded that high fertilizer application (627.9 kg N/ha/year) in the study area could result in annual N‐excess amounts of 127 to 423 kg N/ha (20–67% of total fertilizer input). With an increase in fertilizer usage, degradation of groundwater quality by nitrate has been frequently observed (Jung, Yun, Kim, Oh, & Kang, ; Oh et al, ). The perched aquifer contains consistently high levels of NO 3 –N (observed average NO 3 –N in 2009–2010: 39.4 ± 24.9 mg/L) due to its relatively high exposure to the surface NO 3 –N loading (Koh et al, ).…”

Section: Study Areamentioning

confidence: 99%

Comparison of groundwater age models for assessing nitrate loading, transport pathways, and management options in a complex aquifer system

Koh

Lee

Kaown

et al. 2018

Hydrological Processes

View full text Add to dashboard Cite

In an aquifer system with complex hydrogeology, mixing of groundwater with different ages could occur associated with various flow pathways. In this study, we applied different groundwater age‐estimation techniques (lumped parameter model and numerical model) to characterize groundwater age distributions and the major pathways of nitrate contamination in the Gosan agricultural field, Jeju Island. According to the lumped parameter model, groundwater age in the study area could be explained by the binary mixing of the young groundwater (4–33 years) and the old water component (>60 years). The complex hydrogeologic regimes and local heterogeneity observed in the study area (multilayered aquifer, well leakage hydraulics) were particularly well reflected in the numerical model. The numerical model predicted that the regional aquifer of Gosan responded to the fertilizer applications more rapidly (mean age: 9.7–22.3 years) than as estimated by other models. Our study results demonstrated that application and comparison of multiple age‐estimation methods can be useful to understand better the flow regimes and the mixing characteristics of groundwater with different ages (pathways), and accordingly, to reduce the risk of improper groundwater management plans arising from the aquifer heterogeneity.

show abstract

Identifying source and evaluation of hydrogeochemical processes in the hard rock aquifer system: geostatistical analysis and geochemical modeling techniques

et al. 2016

View full text Add to dashboard Cite

Role of an impermeable layer in controlling groundwater chemistry in a basaltic aquifer beneath an agricultural field, Jeju Island, South Korea

Cited by 19 publications

References 58 publications

Dynamic Groundwater Contamination Vulnerability Assessment Techniques: A Systematic Review

Dynamic Groundwater Contamination Vulnerability Assessment Techniques: A Systematic Review

Comparison of groundwater age models for assessing nitrate loading, transport pathways, and management options in a complex aquifer system

Identifying source and evaluation of hydrogeochemical processes in the hard rock aquifer system: geostatistical analysis and geochemical modeling techniques

Contact Info

Product

Resources

About