Impacts of chemical weathering and human perturbations on dissolved loads of the Wei River, the Yellow River catchment

Jia, Hui; Qu, Wengang; Ren, Wenhao; Qian, Hui

doi:10.1016/j.jhydrol.2021.126950

Cited by 26 publications

(7 citation statements)

References 64 publications

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“…The reason may be exogenous input. 17 The changes of ion concentrations along the course comprehensively indicate that Huanglong travertine water experienced a relatively deep cycle and retention time, the water−rock interaction was sufficient.…”

Section: Resultsmentioning

confidence: 97%

Water Environmental Characteristics and Eutrophication Evaluation of Alpine Karst Mountains in Huanglong, Sichuan, China

Gao

Zhang

Sun³

et al. 2023

ACS Earth Space Chem.

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Travertine deposits are formed after CO2 is degassed from deep karst water at the Huanglong Scenic Area, a World Natural Heritage Site. In recent years, various levels of eutrophication have occurred in travertine waters, resulting in large areas of algal mats that have severely affected the continued deposition of travertine and its appreciable value. The research on hydrochemical types, hydrochemical components, and pollution characteristics of surface water and groundwater in Huanglong National Scenic Area, a World Natural Heritage, is beneficial to the evaluation and management of regional water resources and landscape development. In June 2022, 14 groups of surface water and groundwater samples were collected from Huanglong. Mathematical statistics were used to analyze the water’s chemical characteristics, the Piper three-plot was used to analyze the water’s chemical types, and Gibbs and Gaillardet model were used to discuss the sources and influencing factors of main ions in surface water. The eutrophication degree of regional water was evaluated by the single factor index method. The results show that most of the groundwater in the study area belongs to weakly alkaline water. The cations are mainly Ca2+, the anions are mainly HCO3 –, and the hydrochemical type is HCO3–Ca. The major contribution of TDS comes from Ca2+ and HCO3 –. According to the analysis of water–rock model, the hydrochemical origin of surface water in the study area is mainly controlled by rock weathering, and most ions are influenced by the water–rock interaction of carbonate rocks, with the existence of reverse cation exchange. The spatial and temporal distribution characteristics of nitrogen, phosphorus, and carbon are obvious. Eutrophication evaluation showed that Huanglong was in a medium eutrophication state.

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Section: Resultsmentioning

confidence: 97%

Water Environmental Characteristics and Eutrophication Evaluation of Alpine Karst Mountains in Huanglong, Sichuan, China

Gao

Zhang

Sun³

et al. 2023

ACS Earth Space Chem.

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“…1a). The headwaters of the river, which eventually drains into the Yellow River, are located in the 95 Niaoshushan Mountains, in the western part of the CLP (Chang et al, 2016;Jia et al, 2021) (Fig. 1b).…”

Section: Geographic Settingmentioning

confidence: 99%

“…1b). The Wei River catchment is located at the transitional zone of arid occurs from June to September (Jia et al, 2021). The mean annual temperature ranges 100 from 7.8 ℃ to 13.5 ℃ (Tian et al, 2022).…”

Section: Geographic Settingmentioning

confidence: 99%

“…The tributaries draining the CLP are relatively long and contribute large amounts of sediment (Fig. 1b) (Chang et al, 2016;Jia et al, 2021). The southern part of the catchment lies in the northern Qinling Mountains and has relatively short tributaries characterized by flash 110 flows (Fig.…”

Section: Geographic Settingmentioning

confidence: 99%

“…The southern part of the catchment lies in the northern Qinling Mountains and has relatively short tributaries characterized by flash 110 flows (Fig. 1b) (Jia et al, 2021). The Wei River catchment has two major tributaries, the Jing River and the Beiluo River (Fig.…”

Section: Geographic Settingmentioning

confidence: 99%

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Regime shift of a large river as a response to Holocene climate change depends on land use – a numerical case study from the Chinese Loess Plateau

Chen

Yan

et al. 2023

Preprint

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Abstract. The Wei River catchment in the southern part of the Chinese Loess Plateau (CLP), is one of the centers of the agricultural revolution in China. The area has experienced intense land use changes since ~6000 BCE, which makes it an ideal place to study the response of fluvial systems to anthropogenic land cover change (ALCC). We applied a numerical landscape evolution model that combines the Landlab landscape evolution model with an evapotranspiration model to investigate the direct and indirect effects of ALCC on hydrological and morphological processes in the Wei River catchment since the mid-Holocene. The results show that ALCC not only leads to changes in discharge and sediment load in the catchment but also affects their sensitivity to climate change. When the proportion of agricultural land area exceeded 50 % (around 1000 BCE), the sensitivities of discharge and sediment yield to climate change increased abruptly indicating a regime change in the fluvial catchment. It is associated with a large sediment pulse in the lower reaches. The model simulation results also show a link between human settlement, ALCC and floodplain development: Changes in agricultural land use changes lead to downstream sediment accumulation and floodplain development, which in turn leads to further spatial expansion of agriculture and human settlement.

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Evolution of hydrochemical characteristics and the influence of environmental background in the Hailar River basin, China

Xie,

Chai,

Wang

et al. 2024

Environ Monit Assess

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Impacts of chemical weathering and human perturbations on dissolved loads of the Wei River, the Yellow River catchment

Cited by 26 publications

References 64 publications

Water Environmental Characteristics and Eutrophication Evaluation of Alpine Karst Mountains in Huanglong, Sichuan, China

Water Environmental Characteristics and Eutrophication Evaluation of Alpine Karst Mountains in Huanglong, Sichuan, China

Regime shift of a large river as a response to Holocene climate change depends on land use – a numerical case study from the Chinese Loess Plateau

Evolution of hydrochemical characteristics and the influence of environmental background in the Hailar River basin, China

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