Effects of storm runoff on the thermal regime and water quality of a deep, stratified reservoir in a temperate monsoon zone, in Northwest China

Huang, Tinglin; Li, Xuan; Rijnaarts, H.H.M.; Grotenhuis, J.T.C.; Wei-xing, MA; Sun, Xin; Xu, Jinlan

doi:10.1016/j.scitotenv.2014.01.008

Cited by 108 publications

(68 citation statements)

References 18 publications

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“…Both metals, Mn and Fe, are found in more oxidation states, they vary with the depth in a similar manner and are susceptible to oxidation or reduction. At higher depths due to the lack of oxygen, these metals are found in the reduced oxidation states [2,25]. Cd and Zn are known to be geochemically similar and similar also in their behavior in the environment [25].…”

Section: Mathematical Modelingmentioning

confidence: 99%

“…Heavy metal pollution in aquatic environments is a growing problem worldwide and currently it has reached an alarming rate, especially for drinking water sources such as rivers and water reservoirs [1][2]. a There are various sources of heavy metals in aquatic environment such as natural sources through geological weathering of the rocks and anthropic sources such as mining effluents, industrial effluents, domestic effluents, agricultural nonpoint source pollution, transport or recreational activities (boating, fishing, camping).…”

Section: Introductionmentioning

confidence: 99%

“…Water reservoirs provide important services to human communities such as supplying raw water, controlling floods and generating electricity [2]. However, with time, water quality tends to decrease due to sediment accumulation, low flow, accumulation of pollutants in sediments and their release in the water column by diffusive processes or by sediment disturbances [2,15].…”

Section: Introductionmentioning

confidence: 99%

“…However, with time, water quality tends to decrease due to sediment accumulation, low flow, accumulation of pollutants in sediments and their release in the water column by diffusive processes or by sediment disturbances [2,15].…”

Section: Introductionmentioning

confidence: 99%

“…Thus, the deeper layer is excluded from gas exchange with the atmosphere, leading to anoxic conditions at the bottom of the reservoir. In these anaerobic conditions, reduced chemical species, especially Fe and Mn are released from the sediments and enter the hypolimnion [2,17].…”

Section: Introductionmentioning

confidence: 99%

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Seasonal Evolution and Depth Variability of Heavy Metal Concentrations in the Water of Firiza-Strîmtori Lake, NW of Romania

Dippong¹,

Mihali²,

Goga³

et al. 2017

Studia UBB Chemia

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ABSTRACT. The paper follows the spatial variability and seasonal evolution of the heavy metal content of the Firiza-Strîmtori Reservoir that is the main source of drinking water for Baia Mare city located in the northwestern part of Romania. Water samples were collected from 10 sampling points located along the median line of the lake at different depths (at surface, at 5 m, 10 m, 15 m and 20 m). The experiments were carried out in the winter, spring, summer and autumn of 2015. We determined the concentration -depth profiles, both for the heavy metals iron (Fe), manganese (Mn), zinc (Zn), copper (Cu), cadmium (Cd), lead (Pb) and also for sodium (Na), potassium (K), calcium (Ca) and magnesium (Mg). We determined the concentrations of heavy metals by atomic absorption spectrometry. We found that concentrations of heavy metals increase with depth. Generally, the concentrations of heavy metals are within the legal limits for the water used as drinking water sources. Mathematical models with high correlation coefficients were obtained in the case of heavy metal concentrations depending on depth and also for the seasonality of heavy metals upload.

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Section: Mathematical Modelingmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Seasonal Evolution and Depth Variability of Heavy Metal Concentrations in the Water of Firiza-Strîmtori Lake, NW of Romania

Dippong¹,

Mihali²,

Goga³

et al. 2017

Studia UBB Chemia

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Effects of rainfall on thermal stratification and dissolved oxygen in a deep drinking water reservoir

Liu

Zhang

Shi

et al. 2020

Hydrological Processes

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Thermal stratification is crucial for water quality and ecological processes in deep lakes and reservoirs and can be substantially affected by meteorological and hydrological processes in the catchment. However, how thermal stratification responds to rainfalls of different intensities and changing hydrological processes has not been documented very well. Here, high frequency water column profiles at three stations in a large subtropical deep reservoir (Lake Qiandaohu, China) in 2017 were used to elucidate the impacts of rainfall on lake physical process and chemical environment. The impact of rainfalls on the thermal stratification and dissolved oxygen in riverine zone was more impressive than that in transitional and lacustrine zones. The effect on thermal stratification by rainfall was largely affected by the magnitude of rainfall. Moderate and heavy rainfall events could reduce the thermal stability of water column, deepen the mixing layer depth, and shape the thermocline, resulting from decrease of surface water temperature and increased inflows. While rainstorms could totally break up thermoclines in the riverine zone by high volume inflow flushing. In addition, we found that the hypoxia and anoxia initial depths increased during rainfall events in this reservoir, which were well related to the changes of mixing layer depths. This research highlights that quantifying the effects of rainfalls on thermal stratification and dissolved oxygen will be beneficial for optimizing reservoir management.

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Key differences between lakes and reservoirs modify climate signals: A case for a new conceptual model

Hayes

Deemer

Corman

et al. 2017

Limnol Oceanogr Letters

144

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Lakes and reservoirs are recognized as important sentinels of climate change, integrating catchment and atmospheric climate change drivers. Climate change conceptual models generally consider lakes and reservoirs together despite the possibility that these systems respond differently to climate-related drivers. Here, we synthesize differences between lake and reservoir characteristics that are likely important for predicting waterbody response to climate change. To better articulate these differences, we revised the energy mass flux framework, a conceptual model for the effects of climate change on lentic ecosystems, to explicitly consider the differential responses of lake versus reservoir ecosystems. The model predicts that catchment and management characteristics will be more important mediators of climate effects in reservoirs than in natural lakes. Given the increased reliance on reservoirs globally, we highlight current gaps in our understanding of these systems and suggest research directions to further characterize regional and continental differences among lakes and reservoirs. Author Contribution Statement: NMH and BRD co-led the manuscript effort and contributed equally. JRC and BRD conducted the statistical analyses. KES and JRC designed the lake pairing analysis. NMH, NRR, and KES developed the climate change conceptual model. This paper was a highly collaborative effort and all authors contributed equally to the development of the research question and study design as well as the writing of the paper. This is an open access article under the terms of the Creative Commons Attribution NonCommercial License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited and is not used for commercial purposes. Scientific Significance StatementClimate change poses a significant threat to freshwater ecosystems, though the exact nature of these threats can vary by waterbody type. An existing conceptual model describes how altered fluxes of mass and energy will affect standing waterbodies, but it does not differentiate reservoirs from lakes. Here, we synthesize evidence suggesting that lakes and reservoirs differ in fundamental ways that are likely to influence their response to climate change. We then present a revised conceptual model that contrasts climate change effects on reservoirs versus lakes. 47Limnology and Oceanography Letters 2, 2017, 47-62

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Effects of storm runoff on the thermal regime and water quality of a deep, stratified reservoir in a temperate monsoon zone, in Northwest China

Cited by 108 publications

References 18 publications

Seasonal Evolution and Depth Variability of Heavy Metal Concentrations in the Water of Firiza-Strîmtori Lake, NW of Romania

Seasonal Evolution and Depth Variability of Heavy Metal Concentrations in the Water of Firiza-Strîmtori Lake, NW of Romania

Effects of rainfall on thermal stratification and dissolved oxygen in a deep drinking water reservoir

Key differences between lakes and reservoirs modify climate signals: A case for a new conceptual model

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