Variation and multi-time series prediction of total hardness in groundwater of the Guanzhong Plain (China) using grey Markov model

Nsabimana, Abel; Li, Peiyue; Wang, Yuanhang; Alam, Shamsul

doi:10.1007/s10661-022-10585-9

Cited by 15 publications

(3 citation statements)

References 81 publications

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“…Water is the most crucial natural resource on Earth and exists in glaciers, surface water, and groundwater. − Humans utilize these sources of water to meet their daily needs; ∼43% of agricultural land is irrigated using groundwater globally. − In the 21st century, groundwater quality is degrading due to natural and anthropogenic factors triggered by rapid industrialization and urbanization. Some natural factors affecting groundwater aquifers are lithological, hydrological, topographical, and climatic. − In addition, overexploitation, anthropogenic activities such as intensification of the urban and industrial sectors, and agricultural practices affect the hydrochemical properties by enhancing the cation and anion properties and heavy metals contamination. − …”

Section: Introductionmentioning

confidence: 99%

“…In most countries, many researchers used these techniques to evaluate the water quality status and obtained good results, which helps in maintaining and enhancing water quality. ,, Gitika et al and Sathe et al , evaluated the prevalence of arsenic, iron, and fluoride mobilization and the effect on groundwater quality near Brahmaputra floodplain in northeastern India using various techniques such as PCA, a Gibbs diagram, cation exchange, etc. Similarly, Karangoda and Nanayakkara assessed the groundwater quality for the purpose of drinking in Ratnapura district, Sri Lanka, using similar techniques, while Nsabimana et al used the gray Markov model to determine the total hardness of the groundwater of the Guanzhong Plain, China.…”

Section: Introductionmentioning

confidence: 99%

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Hydrogeochemical Evaluation of Groundwater for Drinking and Irrigation Purposes in the Upper Piedmont Area of Haridwar, India

et al. 2023

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In this study, the suitability of groundwater quality for the purpose of drinking and irrigation was evaluated in the upper piedmont area of Haridwar, India. In this regard, inverse distance-weighted interpolation, water quality index (WQI), principal component analysis (PCA), piper trilinear diagram (PTD) analysis, and sodium absorption ratio (SAR) methods were used to assess the geospatial variation of groundwater quality. The results showed that groundwater was partially affected by rapid industrialization and urbanization practices. The groundwater quality revealed the presence of different cations and anions in the following order: Ca2+ > Na+ > Mg2+ > K+ and HCO3 – > NO3 – > SO4 2– > Cl– > SiO2 – > F–. WQI showed an excellent range (29.94–45.17) for sampling sites S1–S3 and S5–S8 and a good value for site S4 (99.2). In addition, PTD confirmed that the calcium and magnesium bicarbonate type and mixed type for groundwater while PCA revealed that nitrate was dominant at site S4. In addition, the SAR and Na contents were in excellent ranges, indicating their suitability for irrigation purposes. The outcomes of this study indicated that geogenic and anthropogenic processes were the major reasons for the change in groundwater quality of this region.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Hydrogeochemical Evaluation of Groundwater for Drinking and Irrigation Purposes in the Upper Piedmont Area of Haridwar, India

et al. 2023

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“…Zejun et al,2023).The coe cient of variation (CV) and standard deviation (SD) of the pH values between these two years were relatively small, indicating a low degree of dispersion and a relatively uniform distribution of PH values in general, whereas the CV of Ca 2+ , Cl − , were relatively large, which further suggests that point and surface pollution from agricultural or industrial activities are the main factors contributing to the poor stability of the above indicators(Lamine et al,2023). Total hardness (TH) and total hardness (TDS) are two signi cant indicators re ecting the stability of water bodies and elevated TDS and TH indicate that the water bodies are un t for drinking(Abel N et al,2022). The average values of TDS during the dry and abundant water periods in 2016 were 729.93 mg/L and 824.80 mg/L, respectively, and the average values of TH were 507.63 mg/L and 569.93 mg/L, respectively.…”

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Hydrogeochemical characteristics and nitrate distribution in groundwater in Weibei Plain, Northern China

Shi,

Wu,

Pan

et al. 2024

Preprint

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Nitrate pollution in groundwater has become an issue that cannot be overlooked, specifically in areas where there is intense agricultural groundwater extraction. This study focuses on the Weibei Plain, where 46 shallow groundwater monitoring wells were selected for sampling during the dry and wet seasons in 2016 and 2021. The purpose of this study was to analyze the regional groundwater hydrogeochemistry and investigate the temporal or spatial variation of nitrate content. The results demonstrated that the groundwater in the study area had a weakly alkaline nature. The hydrochemical composition of the groundwater shifted from being dominated by HCO3-Ca-Mg in 2016 to HCO3-Na and SO4-Cl-Ca-Mg in 2021. The hydrochemical characteristics were predominantly impacted by both rock weathering and cation exchange. The average concentration of nitrate in the 184 samples was 25.93 mg/L, surpassing the drinking water limit of 20 mg/L. A significant correlation was observed between NO3- and Cl- as well as SO42-. The areas with high nitrate concentrations were predominantly located in the groundwater depression cone and regions with intensive agricultural activities, indicating that human activities were the main contributors to nitrate pollution. Furthermore, the nitrate concentration was significantly higher during the wet season compared to the dry season. This could be attributed to rainfall intensifying the infiltration of nitrate from the soil into the groundwater. Furthermore, there was a substantial increase in nitrate concentration in 2021 compared to 2016. This increase was primarily ascribed to the excessive exploitation of groundwater for irrigated agriculture, leading to a considerable influx of nitrate into the groundwater.

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Surface water quality for irrigation and industrial purposes: a comparison between the south and north sides of the Wei River Plain (northwest China)

Nsabimana

Alam

et al. 2023

Environ Monit Assess

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Variation and multi-time series prediction of total hardness in groundwater of the Guanzhong Plain (China) using grey Markov model

Cited by 15 publications

References 81 publications

Hydrogeochemical Evaluation of Groundwater for Drinking and Irrigation Purposes in the Upper Piedmont Area of Haridwar, India

Hydrogeochemical Evaluation of Groundwater for Drinking and Irrigation Purposes in the Upper Piedmont Area of Haridwar, India

Hydrogeochemical characteristics and nitrate distribution in groundwater in Weibei Plain, Northern China

Surface water quality for irrigation and industrial purposes: a comparison between the south and north sides of the Wei River Plain (northwest China)

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