Natural and anthropogenic sources and processes affecting water chemistry in two South Korean streams

Shin, Woojin; Ryu, Jong-Sik; Mayer, Bernhard; Lee, Kwang-Sik; Lee, Sin-Woo

doi:10.1016/j.scitotenv.2014.03.078

Cited by 13 publications

(18 citation statements)

References 36 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In watersheds with calcite-and dolomitecontaining bedrock, H 2 CO 3 formed in the soil zone usually reacts with carbonate minerals, resulting in dissolved Ca, Mg and HCO − 3 as described in Eq. (5) (Andrews and Schlesinger, 2001;Shin et al, 2014). Although it has been proven that the reaction of carbonate dissolution is mainly controlled by the amount of rainfall (Amiotte Suchet et al, 2003;Egli and Fitze, 2001;Kiefer, 1994), in this study, we consider that the effect of rainfall is equal in each soil column, and hence it is disregarded as a controlling factor in weathering rate differences among these treatments.…”

Section: Kinetics Of Carbonate Dissolution/precipitation: Controllingmentioning

confidence: 97%

Impact of different fertilizers on carbonate weathering in a typical karst area, Southwest China: a field column experiment

et al. 2017

View full text Add to dashboard Cite

Abstract. Carbonate weathering, as a significant vector for the movement of carbon both between and within ecosystems, is strongly influenced by agricultural fertilization, since the addition of fertilizers tends to change the chemical characteristics of soil such as the pH. Different fertilizers may exert a different impact on carbonate weathering, but these discrepancies are as yet not well-known. In this study, a field column experiment was conducted to explore the response of carbonate weathering to the addition of different fertilizers. We compared 11 different treatments, including a control treatment, using three replicates per treatment. Carbonate weathering was assessed by measuring the weight loss of limestone and dolostone tablets buried at the bottom of soil-filled columns. The results show that the addition of urea, NH 4 NO 3 , NH 4 HCO 3 , NH 4 Cl and (NH 4 ) 2 CO 3 distinctly increased carbonate weathering, which was attributed to the nitrification of NH + 4 . The addition of Ca 3 (PO 4 ) 2 , Ca-Mg-P and K 2 CO 3 induced carbonate precipitation due to the common ion effect. The addition of (NH 4 ) 3 PO 4 and NaNO 3 had a relatively small impact on carbonate weathering in comparison to those five NH 4 -based fertilizers above. The results of NaNO 3 treatment raise a new question: the negligible impact of nitrate on carbonate weathering may result in an overestimation of the impact of N fertilizer on CO 2 consumption by carbonate weathering on the regional/global scale if the effects of NO 3 and NH 4 are not distinguished.

show abstract

Section: Kinetics Of Carbonate Dissolution/precipitation: Controllingmentioning

confidence: 97%

Impact of different fertilizers on carbonate weathering in a typical karst area, Southwest China: a field column experiment

et al. 2017

View full text Add to dashboard Cite

show abstract

“…These isotopes can provide meaningful information about various potential sources of sulfate in the watershed (e.g., dissolution of sulfate-bearing evaporitic minerals, such as gypsum and anhydrite, mineralization of organic matter, oxidation of sulfide minerals, infiltration from anthropogenic sources, atmospheric deposition) (e.g., [82,83]). In recent years, the use of stable sulfur isotopes has been expanded to address diverse surface water and groundwater issues, e.g., cycling of sulfur in agricultural watersheds, origin of salinity in costal aquifers, groundwater contamination by landfill leachate plumes, and acid main drainage (e.g., [84][85][86][87]). …”

Section: Background Principlesmentioning

confidence: 99%

“…In the last years, intensive investigations of the stable isotopic composition of sulfate from groundwater, surface waters, and acidic mine drainage were performed due to the dominant role of sulfur as a component of AMD. Isotopic (δ 34 S-SO 4 and δ 18 O-SO 4 ) compositions can be used to clarify sources and transformation processes of sulfur in aquatic systems associated with coal mining ( [87] and references therein). It is well assessed that the exposure of pyrite and other metal sulfides to weathering under atmospheric conditions produces sulfuric acid, with subsequent mobilization of other toxic substances (metals, metalloids) into groundwater and surface water (e.g., [91] and references therein).…”

Section: Application Studies To Groundwater and Surface Watersmentioning

confidence: 99%

“…1). Then, some hints about recently applied isotopic ratios ( 87 Sr/ 86 Sr and 11 B/ 10 B) are described. The last part of the chapter deals with new isotopic ratios (iron, chromium, and copper), whose studies are still to be defined as they deserve to be more deeply investigated.…”

Section: Introductionmentioning

confidence: 99%

“…The δ 13 C DIC values in catchment waters are generally in the range of À5 to À25‰ [63]. δ 13 C values together with major ion chemistry and/or other isotope tracers (e.g., δ 34 S, 87 Sr/ 86 Sr) can be used to evaluate proportions of DIC [64] and to estimate sources, sinks, and fluxes of carbon (e.g., [65,66]). …”

mentioning

confidence: 99%

See 2 more Smart Citations

Groundwater Contamination Studies by Environmental Isotopes: A review

Nisi

Raco

Ḏotsika

2014

The Handbook of Environmental Chemistry

View full text Add to dashboard Cite

Water demand for urban, industrial, and agricultural purposes is a major concern in developed and third world countries. A careful evaluation for an appropriate and sustainable use of water resources is a priority. Geochemical processes can lead to measurable variations of the aquatic environment, which can be studied through the analysis of the dissolved solutes. Even if this review is not meant to be exhaustive, it is intended to give a view on the importance of environmental isotopes in the context of groundwater quality assessments. This is done by briefly recalling some basic notions for each described system, followed by relevant applications and reports about some significant case studies. This review includes well-established isotopic systematics, such as those of O and H in water, C in dissolved inorganic carbon (DIC), S and O in sulfates, and N and O in nitrates and those of boron and Sr, which in the last lustrums have found large application in the field of water geochemistry. This chapter ends with some examples related to nontraditional isotopes, i.e., Fe, Cr, and Cu, in order to highlight the potential of the environmental isotopes to trace sources, fate, and behavior of different solutes and metals in surface water and groundwater.

show abstract

Effects of mining activities on evolution of water quality of karst waters in Midwestern Guizhou, China: evidences from hydrochemistry and isotopic composition

Han

et al. 2017

Environ Sci Pollut Res

View full text Add to dashboard Cite

Zhijin coal-mining district, located in Midwestern Guizhou Province, has been extensively exploited for several decades. The discharge of acid mine drainage (AMD) has constituted a serious threat to local water environmental quality, which greatly affected the normal use of local people. The Permian limestone aquifer is the essential potable water supply for local people, which covered under the widely distributed coal seams. To investigate the origin of the water, the evolutionary processes, and the sources of dissolved sulfate in the karst waters, the mine water, surface water, and groundwater near the coal mines were sampled for stable isotopes (H, O, and S) and conventional hydrochemical analysis. The results of hydrochemistry and isotopic composition indicate that the regional surface water and partial karst groundwater are obviously affected by coal-mining activities, which is mainly manifested in the increase of water solute concentration and the change of hydrochemical types. The isotopic composition of δH and δO indicates that the major recharge source of surface water and the groundwater is atmospheric precipitation and that it is influenced obviously by evaporation in the recharge process. The surface water is mainly controlled by the oxidation of pyrite, as well as the dissolution of carbonate rocks, whereas that of natural karst waters is influenced by the dissolution of carbonate rocks. The resulting δS values suggest that the dissolved sulfate source in the surface water is mainly pyrite oxidation but atmospheric precipitation for the karst groundwater. Given the similar chemistry and isotopic composition between surface water and partial groundwater, it is reasonable to assume that most of the dissolved sulfate source in part of the groundwater was derived through the oxidation of pyrite in the coal. Furthermore, the contamination of the surface water and partial groundwater from the coal seam has occurred distinctly in the catchment, which is enriched in SO and is mostly depleted δS in sulfate.

show abstract

Natural and anthropogenic sources and processes affecting water chemistry in two South Korean streams

Cited by 13 publications

References 36 publications

Impact of different fertilizers on carbonate weathering in a typical karst area, Southwest China: a field column experiment

Impact of different fertilizers on carbonate weathering in a typical karst area, Southwest China: a field column experiment

Groundwater Contamination Studies by Environmental Isotopes: A review

Effects of mining activities on evolution of water quality of karst waters in Midwestern Guizhou, China: evidences from hydrochemistry and isotopic composition

Contact Info

Product

Resources

About