Applying multivariate statistics for identification of groundwater chemistry and qualities in the Sugan Lake Basin, Northern Qinghai-Tibet Plateau, China

Xiang, Juan; Zhou, Junju; Jun-cang, Yang; Huang, Meihua; Feng, Wei; Li, Qiaoqiao; Xue, Dongxiang; Zhao, Yaru; Zhu, Guofeng

doi:10.1007/s11629-019-5660-z

Cited by 8 publications

(3 citation statements)

References 46 publications

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“…The above results show that the hydrochemistry of XRB was influenced by the same lithology in the four periods. Combined with the geological conditions in the southern Qilian Mountains, metamorphic sandstone, clastic rock, carbonate rock, medium-basic-medium-acid volcanic rock and magmatic rock from the Cambrian, Ordovician and Silurian were distributed in the basin [31], and it can be stated that the river water chemistry of the XRB in the four periods was mainly controlled by carbonate weathering and then silicate weathering secondly; furthermore, the influence of the evaporation was very small and could be ignored.…”

Section: Rock Weatheringmentioning

confidence: 99%

Temporal Variations of Hydrochemical Characteristics and Their Controlling Factors in the Xiying River Basin in the Eastern Qilian Mountains, China

Ma¹,

Zhou²,

Li³

et al. 2021

Pol. J. Environ. Stud.

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Developing a scientific understanding of hydrochemical characteristics and their controlling factors is of great significance in protecting the quality of the water environment and maintaining ecological balance. The article presents the water chemical characteristics and their controlling factors in the Xiying River Basin (XRB) during different flood seasons from April to November, 2015. The results are as follows. The river water was found to be slightly alkaline on the whole and the dominant ions were Ca² + and HCO 3 -. The hydrochemical type was Ca² + -Mg² + -HCO 3 -. Besides that, the ion concentrations showed great differences in different periods. From the pre-flood period (PreFP) to post-flood period (PoFP), total dissolved solids (TDS), Ca 2+ , Mg 2+ , Na + and SO 4 2presented a trend of decreasing first and then increasing. TDS reached its maximum in PreFP. K + , NO 3 and HCO 3 presented a trend of increasing first and then decreasing, reaching a maximum in SuFP. Rock weathering is the major controlling mechanism of river hydrochemistry, of which carbonate weathering is the main source of ions, followed by silicate weathering. At the same time, factors such as precipitation, river supply sources, human activities and vegetation cover in different times all have significant influences on river hydrochemistry. The findings in this paper show that we need to adjust cultivated land areas and their space distribution scientifically, strengthen the construction of riverbank forest belts, and make full use of the effects of forest land and grassland. These measures could improve water quality effectively and guarantee water security in middle and lower reaches.

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Section: Rock Weatheringmentioning

confidence: 99%

Temporal Variations of Hydrochemical Characteristics and Their Controlling Factors in the Xiying River Basin in the Eastern Qilian Mountains, China

Ma¹,

Zhou²,

Li³

et al. 2021

Pol. J. Environ. Stud.

Self Cite

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“…Shallow groundwater is also generally easily accessible with low operating costs. However, shallow groundwater resources are at risk due to overexploitation and contamination from various sources [ 9 , 10 , 11 , 12 ]. The significance of negative impacts on groundwater resources has been linked in the past to the depth of the groundwater bodies, their proximity to contamination sources, and the shape of the respective groundwater bodies [ 13 , 14 , 15 , 16 ].…”

Section: Introductionmentioning

confidence: 99%

Evaluation of Shallow Groundwater Quality at Regional Scales Using Adaptive Water Quality Indices

Brețcan

Tanislav

Rădulescu

et al. 2022

IJERPH

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Groundwater, which is the main source of water for human consumption in many rural areas, has its quality determined by the complex interaction of environmental factors and anthropogenic activities. The present study evaluated the quality of shallow groundwater (1 to 25 m depth) in the rural area of the Târgovişte Plain, a densely populated area (200 inhabitants/km2) using 80 water samples collected from public wells. In order to explain the spatial distribution of the concentrations of the 19 physicochemical parameters considered (including heavy metals), the evaluation of groundwater quality for human consumption and potential impact on human health was conducted using the Water Quality Index (WQI), Integrated Weight Water Quality Index (IwWQI), Total Hazard Index (THI), and cumulative carcinogenic risk (CCR). For the WQI/IwWQI the comparative analysis of the two indices showed that for the WQI, it is important to select an optimal set of parameters, because use of a large number of physicochemical parameters can eclipse the values that exceed WHO guideline limits. In contrast, the use of entropy in the calculation of the IwWQI did not lead to eclipsing of exceedance, no matter the number of parameters used. Areas with poor and very poor groundwater quality according to the WQI/IwWQI overlapped, with a moderate risk to human health (THI > 1) for noncarcinogenic contaminants and also a risk of developing cancer according to the CCR average value (1.15 × 10−2). The health of 43% of the rural population in the Târgovişte Plain can be affected if they drink contaminated groundwater, and it is estimated that about 600 people can develop cancer during their lifetime. If the risk of developing cancer is reduced only in the rural population that does not have access to a water source from a centralized and verified network, the results suggest that 385 people (1.15%) can develop cancer as a result of consuming groundwater contaminated with heavy metals based on the average value of CCR. This value is lower than the general mortality rate in areas with high CCR and below the average number of cancer patients in Romania (2.65%). The quality of groundwater and the risk of developing diseases and cancer due to water consumption is directly proportional to the intensity of agricultural land use and inversely proportional to the depth of the groundwater layer, the distance from the main hydrographic network and the reservoirs, and the distance from the main city, Târgovişte. The complex and integrated analysis of groundwater quality using quality indices and indicators of health risk for the population, validated by hot-spot analysis and compared to the mortality rate, is an approach with practical applicability. This integrated approach allows public authorities, policymakers, and health services to implement an efficient monitoring program and optimize anthropogenic activities in order to prevent groundwater contamination and finally improve the quality of life for the residents in the area of this study.

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“…Located in the northeast of the Qinghai-Tibet Plateau, the Suhai Lake Basin is an important part of the ecological security barrier of the Qinghai-Tibet Plateau [24]. It forms a somewhat-isolated ecosystem thanks to the relatively limited basin topography and independent regional water system.…”

Section: Introductionmentioning

confidence: 99%

Analyzing the Process of Land-Use Transfer Flow in the Suhai Lake Basin in China, 1980–2018

Guo

Zhou

et al. 2022

Sustainability

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The Suhai Lake Basin has held major ecological status as a crucial component of the Qinghai-Tibet Plateau’s ecological security barrier. The Suhai Lake Migratory Bird Nature Reserve’s safety and the livelihood of Kazakh citizens are now directly endangered by the frequent switching between land-use types and the decrease of ecosystem service functions caused by climate change and human activity. As a result, this work introduces the idea of land-use transfer flow. Through the application of interval level change and the land-use transfer chain, the process, affecting factors, and current issues of land-use change in the Suhai Lake Basin over the past 40 years are thoroughly investigated. The results showed that the intensity of land-use change was significant, at 0.055%, during the period 1990–2000, whereas the grassland area significantly increased, with a net increase of 23.07 km2, mainly from the conversion of saline-alkali land, swamp, and other unused land in the middle and lower reaches. The key factor influencing the growth of the grassland throughout this time has been the ecological management policy. As a result of the climate’s ongoing warming between 2000 and 2018, glacial meltwater and precipitation increased, the middle and lower ranges of the groundwater table rose, and the grassland degradation, swamp shrinkage, and soil salinization in the watershed all worsened. The degradation of grassland will result from both overgrazing and overprotection. Suhai Lake Wetland and Haizi Grassland Wetland are the most readily apparent examples of land-use changes in the Suhai Lake Basin from a spatial perspective. More consideration should be given to the ecological deterioration and land exposure in the glacier retreat zone of the upstream source region. The results can provide important information on the impact of regional development and the environmental governance policies of the changes in land use/cover in the Suhai Lake Basin.

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Applying multivariate statistics for identification of groundwater chemistry and qualities in the Sugan Lake Basin, Northern Qinghai-Tibet Plateau, China

Cited by 8 publications

References 46 publications

Temporal Variations of Hydrochemical Characteristics and Their Controlling Factors in the Xiying River Basin in the Eastern Qilian Mountains, China

Temporal Variations of Hydrochemical Characteristics and Their Controlling Factors in the Xiying River Basin in the Eastern Qilian Mountains, China

Evaluation of Shallow Groundwater Quality at Regional Scales Using Adaptive Water Quality Indices

Analyzing the Process of Land-Use Transfer Flow in the Suhai Lake Basin in China, 1980–2018

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