A vertically integrated eutrophication model and its application to a river-style reservoir — Fuchunjiang, China

Wu, Tingfeng; Ling, Luo; Qin, Boqiang; Cui, Guangbai; Yu, Zhiming; Yao, Zhiming

doi:10.1016/s1001-0742(08)62271-8

Cited by 15 publications

(9 citation statements)

References 12 publications

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“…As far as the sensitivity analysis is concerned, the results obtained are in agreement with those presented by Wu et al (2009) applied to the Fuchunjiang Reservoir. The results of this sensitivity analysis show that the parameters that strongly influence simulated chlorophyll-a concentration are the endogenous respiration, the grazing rate of zooplankton, the maximum growth rate and the sediment SRP flux.…”

Section: Resultssupporting

confidence: 86%

“…It is important to mention that K r , C g and G max directly alter growth rates, whereas F s and a cp affect the possibility to take in or utilise phosphorus. This is in good agreement with the results obtained in other studies (Fasham et al, 1990;Schladow and Hamilton, 1997;Wu et al, 2009), in which K r was the sensitivity parameter that most affects chlorophyll-a concentration and phytoplankton growth.…”

Section: Sensitivity Analysissupporting

confidence: 93%

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A model for describing the eutrophication in a heavily regulated coastal lagoon. Application to the Albufera of Valencia (Spain)

Fernández

Gómez

García-Alba

et al. 2012

Journal of Environmental Management

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Section: Resultssupporting

confidence: 86%

Section: Sensitivity Analysissupporting

confidence: 93%

A model for describing the eutrophication in a heavily regulated coastal lagoon. Application to the Albufera of Valencia (Spain)

Fernández

Gómez

García-Alba

et al. 2012

Journal of Environmental Management

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“…The CE-QUAL-W2 model, hereinafter referred to as W2 [2,3], was originally designed to predict aspects of reservoir, lake, river and estuary management. There have been many studies on its use, most commonly to describe thermal stratification in the water column in large reservoirs [4][5][6][7][8][9][10]. This model has also been used to describe direct and diffusive sources of pollution [11][12][13][14][15], eutrophication and its evolution [16][17][18][19] and to make predictions of turbidity under different climate and management scenarios [20][21][22][23][24][25].…”

Section: Introductionmentioning

confidence: 99%

Reconstruction of an Acid Water Spill in a Mountain Reservoir

Jofre-Meléndez

Torres

Ramos-Arroyo

et al. 2017

Water

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The Olivargas Reservoir is located in a remote and scarcely monitored area in the Odiel River Basin (Southwest Spain) and is used for domestic, agricultural and mining water supplies. In contrast with highly monitored reservoirs, this paper explores the application of the CE-QUAL-W2 model, that was designed by Cole and Wells in 2005, to a poorly monitored reservoir and the utility of the results obtained. The model satisfactorily reproduced the water head measured continuously over three years, temperature (T), total dissolved solids (TDS), dissolved oxygen (DO) and pH measured bimonthly in a depth profile near the dam. A significant increase in TDS and decrease in DO and pH profiles were observed for four months, especially in the hypolimnion. The model reproduced changes in the parameters by assuming the occurrence of an acid water spill into the reservoir. A comparison of calculated results and measured TDS and DO prompted the conclusion that the spill consisted of approximately 3000 t of TDS (mainly sulfates) and 26 t of Fe(II) flowing into the reservoir for approximately 15 days at rates of approximately two and 0.02 kg/s, respectively.Water 2017, 9, 613 2 of 15 applications are based on a broad understanding of reservoir geometry and time-series data on flow, temperature profiles and chemical and biological quality.Many small reservoirs (<50 hm 3 ), however, exist in remote and mountainous areas. They supply water to small communities, and there is rarely accurate monitoring or complete datasets on their physical, chemical and biological parameters. For such communities, water resource management is just as necessary, but the application of the conventional W2 can be challenging and has yet not been explored.The present work describes the calibration of the W2 model for a small reservoir with scarce monitoring in the upper basin of the Odiel River (in Southwest Spain). This region is known for its mining activity, and water from the reservoir is used for domestic consumption, agriculture and mining. As the only form of surveillance, a depth profile of temperature (T), electric conductivity (EC), dissolved oxygen (DO), pH and oxidation-reduction potential (ORP) was taken every two months close to the dam of the reservoir from June 2009 to December 2012. All these data were obtainable by the user without permanent stations or monitoring programs. Besides, an anomalous EC, DO and pH values were detected in one surveillance campaign and were attributed to a possible mining spill.For the reconstruction and evaluation of a possible pollution event, a W2 model was built and calibrated with the data from the bimonthly profiles. In contrast with the highly detailed models on highly monitored reservoirs, this paper explores the application of W2 to a poorly monitored reservoir and the utility of the results obtained.

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“…These results were useful to promote the studies on this topic, but few of them have revealed the direct impacts of hydrodynamic conditions on algae growth. On the other hand, the previous algae simulation researches were mainly focused on lakes and reservoirs (Wu et al, 2009). Nevertheless, little attention has been paid to a riverlake system, which is always characterized by the complicated and fluctuated hydrodynamic conditions due to the frequent water exchange among rivers and lakes (Li et al, 2011;Zhang et al, 2011).…”

Section: Introductionmentioning

confidence: 99%

Flow‐disturbance considered simulation for algae growth in a river–lake system

et al. 2015

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A 1-D-2-D coupled numerical model embedded with the impact of hydrodynamic conditions on algae growth was developed to simulate the algae concentration for a river-lake system. Based on the laboratory experiment and field investigation, the 'flowdisturbance parameter α' was presented to improve the algae growth formula. By numerical simulation, the algae growth processes in a river-lake system were simulated, and the temporal and spatial distributions of Chl-a concentration in the area were analysed. Our results show the following: (1) Hydrodynamic conditions play an apparent effect on algae growth. A suitable turbulence is more beneficial for algal proliferation than the static or intense mixing. (2) In the studied area, the flow disturbances in the east-west rivers are generally stronger than that in the north-south rivers, while the Chl-a concentration is oppositely distributed in the river networks. (3) As a result of the different flow disturbance intensities during periods, the algae cell density in all investigated sections also alters evidently along with the seasons. The average Chl-a concentration in the dry seasons (November-April) increased by 9.22% than that in the flood seasons (May-October). (4) From the point of the whole river-lake system, the dynamic conditions in the lake inlet areas are more suitable for algae growth than that in the river networks. The Chl-a concentrations of S2 and S4 are averagely increased by 18.5% than that in the river networks.

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A vertically integrated eutrophication model and its application to a river-style reservoir — Fuchunjiang, China

Cited by 15 publications

References 12 publications

A model for describing the eutrophication in a heavily regulated coastal lagoon. Application to the Albufera of Valencia (Spain)

A model for describing the eutrophication in a heavily regulated coastal lagoon. Application to the Albufera of Valencia (Spain)

Reconstruction of an Acid Water Spill in a Mountain Reservoir

Flow‐disturbance considered simulation for algae growth in a river–lake system

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