Scenario-based numerical simulation to predict future water quality for developing robust water management plan: a case study from the Hau River, Vietnam

Duc, Nguyen Hong; Avtar, Ram; Kumar, Pankaj; Lan, Pham Phuong

doi:10.1007/s11027-021-09969-y

Cited by 5 publications

(3 citation statements)

References 31 publications

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“…Globally, demand for freshwater resources continues to increase. Freshwater sources are increasingly required to meet growing domestic, agriculture, aquaculture and industrial uses, while at the same time they suffer from increased pollution and natural and anthropogenic interventions and changes to the environment driven by strong population and economic growth [1][2][3][4]. In Southeast Asia, poorly managed aquacultural and agricultural activities are one of the most prominent sources of water pollution [2,[5][6][7][8][9].…”

Section: Introductionmentioning

confidence: 99%

“…The Long Xuyen Quadrangle (LXQ), as shown in Figure 1, is the first area in Vietnam to collect and use water from the Mekong River via two main branches, the Bassac River and the Mekong River. However, in the last few decades, water pollution has been an increasing problem in the delta [1,2,8,34]. The principal sources of pollution are non-point sources, such as wastewater discharged without treatment from industrial zones and commercial activities along the banks of rivers or canals.…”

Section: Introductionmentioning

confidence: 99%

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A Model-Based Approach for Improving Surface Water Quality Management in Aquaculture Using MIKE 11: A Case of the Long Xuyen Quadangle, Mekong Delta, Vietnam

Minh

Trí

Út

et al. 2022

Water

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This study utilized MIKE 11 to quantify the spatio-temporal dynamics of water quality parameters (Biochemical Oxygen Demand (BOD5), Dissolved Oxygen (DO) and temperature) in the Long Xuyen Quadrangle area of the Vietnamese Mekong Delta. Calibrated for the year of 2019 and validated for the year of 2020, the developed model showed a significant agreement between the observed and simulated values of water quality parameters. Locations near to cage culture areas exhibited higher BOD5 values than sites close to pond/lagoon culture areas due to the effects of numerous point sources of pollution , including upstream wastewater and out-fluxes from residential and tourism activities in the surrounding areas, all of which had a direct impact on the quality of the surface water used for aquaculture. Moreover, as aquacultural effluents have intensified and dispersed over time, water quality in the surrounding water bodies has degraded. The findings suggest that the effective planning, assessment and management of rapidly expanding aquaculture sites should be improved, including more rigorous water quality monitoring, to ensure the long-term sustainable expansion and development of the aquacultural sector in the Long Xuyen Quadrangle in particular, and the Vietnamese Mekong Delta as a whole.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

A Model-Based Approach for Improving Surface Water Quality Management in Aquaculture Using MIKE 11: A Case of the Long Xuyen Quadangle, Mekong Delta, Vietnam

Minh

Trí

Út

et al. 2022

Water

Self Cite

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“…Water scarcity and water stress have become major global concerns over the past years. Increasing water demand due to population growth, urbanization, industrialization, expansion of agricultural activities, and economic growth are some reasons for water scarcity (Duc et al 2021;Xiao et al 2021aXiao et al , 2021bXiao et al , 2022Yang & Usman 2021). In addition to the above-mentioned factors, there are some other parameters, such as climate change, drought, and inefficient water management policies, especially in the agricultural sector (Kandel et al 2017;Salman et al 2021;Stenzel et al 2021) which play a significant role in assessing water stress accurately, determining the areas with water shortage, and developing effective management policies.…”

Section: Introductionmentioning

confidence: 99%

Investigating the effects of climate change, drought, and agricultural sector policies on the trend of the water poverty index in Iran

Yazdi

Mousavi

Zarei

et al. 2022

Journal of Water Supply: Research and Technology-Aqua

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Since climate change, intermittent droughts with various severities, poor management and uncontrolled abstraction of water resources, and inattention to the balance of these resources have caused the water crisis in recent decades, it is vitally important to study the water scarcity, its changes in the future, and the effect of climate change and drought on the scarcity through appropriate management policies in the agricultural sector. To achieve this goal, the present study selected the Fasa plain in Iran and calculated its water poverty index (WPI) from 2008 to 2018 using parametric and non-parametric statistical tests. Also, the study calculated the correlation coefficient between the WPI and climate change and drought in the study area. It then evaluated the effects of water resources management policies in the agricultural sector on the poverty index. The results showed that water consumption had the greatest weight in calculating the WPI. The WPI has fluctuated between 0.297 and 0.678 in the Fasa plain, and the worst situation of water poverty was experienced in 2014. Despite its insignificance, the downward trend in the WPI showed that water resources management has become more unfavorable over time. Finally, it was concluded that the WPI in the Fasa plain was more dependent on drought than on climate change in the short term. Therefore, managing water resource consumption in this plain is vitally important, especially in drought conditions. The results also showed that reducing water consumption in the agricultural sector can significantly improve the WPI. Therefore, solving the water crisis in this plain, given the drought conditions and its future trend, requires policies improving water-use efficiency in the agricultural sector.

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Hydrochemical indices as a proxy for assessing land-use impacts on water resources: a sustainable management perspective and case study of Can Tho City, Vietnam

et al. 2023

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Scenario-based numerical simulation to predict future water quality for developing robust water management plan: a case study from the Hau River, Vietnam

Cited by 5 publications

References 31 publications

A Model-Based Approach for Improving Surface Water Quality Management in Aquaculture Using MIKE 11: A Case of the Long Xuyen Quadangle, Mekong Delta, Vietnam

A Model-Based Approach for Improving Surface Water Quality Management in Aquaculture Using MIKE 11: A Case of the Long Xuyen Quadangle, Mekong Delta, Vietnam

Investigating the effects of climate change, drought, and agricultural sector policies on the trend of the water poverty index in Iran

Hydrochemical indices as a proxy for assessing land-use impacts on water resources: a sustainable management perspective and case study of Can Tho City, Vietnam

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