Exploration of the critical factors influencing the water quality in two contrasting climatic regions

Kang, Gelin; Qiu, Yu; Wang, Qingxiu; Qi, Zuoda; Sun, Yuting; Wang, Yuqiu

doi:10.1007/s11356-020-07786-5

Cited by 8 publications

(13 citation statements)

References 48 publications

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“…Table 2 shows the RMSE results between the simulated and observed values. The RMSE values for all variables are less than 5%, indicating a very credible result when compared to previous studies [44,45]. Figure 6 illustrates the model calibration results of 2018 and shows that the model simulation outputs track the historical patterns and magnitude of water qualities.…”

Section: Gam Resultsmentioning

confidence: 57%

The Long-Term and Retention Impacts of the Intervention Policy for Cage Aquaculture on the Reservoir Water Qualities in Northern China

Kang

Yin

Cui

et al. 2020

Water

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To ensure the safety of the water supply of the Panjiakou reservoir, in 2016, the Chinese central government comprehensively banned the fishing cage culture that had lasted for almost 30 years. However, the long-term effects and retention impacts of the government’s mandatory intervention on the reservoir water quality are unknown. To determine the reservoir water quality, we employed statistical methods along with the mathematical model to investigate the internal relationship since the construction of the reservoir. We applied seasonal trend decomposition using loess (STL) to explore the long-term and seasonality trend of monthly total nitrogen (TN) and total phosphorous (TP). To separate the impact of upstream water quality changes from cage culture on reservoir water quality, we employed generalized additive models (GAMs). We created a model, the LAKE2K model, to investigate the internal sources of the sediment that accumulated during the aquaculture period and its retardant effect. The results revealed that the concentration of upstream TN was more affected by non-point sources than by TP. The long-term policy of encouraging aquaculture has greatly contributed to the increase in the reservoir TP concentration rather than an increase in TN; the prohibition of cage aquaculture has resulted in a sharp drop in TP. After the ban, the sediment became the main source of TP. We suspect that the TP concentration of the reservoir and sediment will decrease gradually until a new equilibrium is reached within 10 years. This study offers lake managers an opportunity to increase their insight into the interaction of management measures with water quality and provides valuable information for the natural recovery of the eutrophic system.

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Section: Gam Resultsmentioning

confidence: 57%

The Long-Term and Retention Impacts of the Intervention Policy for Cage Aquaculture on the Reservoir Water Qualities in Northern China

Kang

Yin

Cui

et al. 2020

Water

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“…Due to different levels of socioeconomic development, the process of urbanisation is uneven across countries (Sun et al, 2020;Elmqvist et al, 2013). In contrast to developed countries, for many developing countries the national economic growth and development are inadequate to meet the needs of a growing urban population.…”

Section: Background and Contextmentioning

confidence: 99%

“…SIMBA (IFAK, 2007) or MIKE 11 (DHI, 2017). Those models have been well developed and, for some of them, uncertainty analyses have also been done (Beven and Binley, 1992;Refsgaard, 1997;Beven and Freer, 2001;Vrugt et al, 2003bVrugt et al, , 2008Beven et al, 2010;Andrés-Doménech et al, 2010;Beven, 2012;Jerves-Cobo et al, 2020;Yu et al, 2020), but obviously such uncertainty analyses can only be done if the inputs and the uncertainty associated with these inputs to these models are known. One of these inputs is the inlet from CSO.…”

Section: Uncertainty and Water Quality Impactmentioning

confidence: 99%

“…This has been recognised in the last two decades by governments, especially in more economically developed countries, with the advent of concepts such as "Sustainable Development", "Biodiversity", "Natural Capital", "Ecosystem Services", "Ecosystem-based approaches", and, more recently, "Nature-Based Solutions", which focus primarily on what nature can provide to humans. This is a response to the urgency of solving urban water problems and integrating solutions with new urban water management strategies and practices (Qi et al, 2020).…”

Section: General Introductionmentioning

confidence: 99%

“…Absence of high frequency water quality observations to compare with model outputs and uncertainty prediction bands. In order to gain an understanding of the temporal dynamics of nutrients (nitrogen, N, and phosphorus, P), Yu et al (2020) applied high-frequency monitoring in a groundwater-fed, low-lying urban polder in Amsterdam (the Netherlands). They argued that although spatial and temporal concentration patterns from discrete sampling campaigns of water quality parameters, such as E. coli, showed a clear dilution pattern, the temporal patterns of N and P were still poorly understood, given their reactive nature and more complex biogeochemistry.…”

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confidence: 99%

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Temporal uncertainty propagation analysis : A contribution towards sustainable urban water management

Torres-Matallana¹

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Temporal uncertainty propagation analysis A contribution towards sustainable urban water management Jairo Arturo Torres-Matallana 2021 temporal urban water uncertainty model spatial area high system data study analysis change Contents Page Contents vii Chapter 2 EmiStatR: a simplified and scalable urban water quality model for simulation of combined sewer overflows 19 Chapter 3 Multivariate autoregressive modelling and conditional simulation of precipitation time series 49 Chapter 4 stUPscales: an R-package for spatio-temporal uncertainty propagation across multiple scales (with examples in urban water modelling) 61 Chapter 5 Temporal uncertainty analysis of an urban water system in Luxembourg 93 Chapter 6 Synthesis 131 References 142

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Water quality modeling-based assessment for the scope of wastewater treatment of the urban reach of River Yamuna at Delhi, India

Verma,

Singh,

Ahsan

2024

Environ Monit Assess

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Exploration of the critical factors influencing the water quality in two contrasting climatic regions

Cited by 8 publications

References 48 publications

The Long-Term and Retention Impacts of the Intervention Policy for Cage Aquaculture on the Reservoir Water Qualities in Northern China

The Long-Term and Retention Impacts of the Intervention Policy for Cage Aquaculture on the Reservoir Water Qualities in Northern China

Temporal uncertainty propagation analysis : A contribution towards sustainable urban water management

Water quality modeling-based assessment for the scope of wastewater treatment of the urban reach of River Yamuna at Delhi, India

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