Saltwater intrusion into groundwater systems in the Mekong Delta and links to global change

Xiao, Han; Tang, Yin; Li, Haiming; Zhang, Lu; Ngo‐Duc, Thanh; Chen, Deliang; Tang, Qiuhong

doi:10.1016/j.accre.2021.04.005

Cited by 47 publications

(13 citation statements)

References 65 publications

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“…In some areas, the absolute sea-level increase has been measured at 0.32 cm per year, with land elevation loss as a result [19]. Because of the loss, flooding will become more severe, as evidenced by research conducted in the Mekong Delta, where extended flooding increases the incursion of saline surface water into the delta [20]. With the addition of a storm surge, which would result in the salinization of surface water and soil, the situation could deteriorate even further.…”

Section: Saltwater Intrusionmentioning

confidence: 99%

Preventing saltwater intrusion in the Coastal of Terengganu, can BRIS soil system help?

Syazuani

Edlic

Sofiyan

et al. 2022

IOP Conf. Ser.: Earth Environ. Sci.

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Coastal zone is among the most heavily populated areas across the world. The increasing population and rapid development in this area could lead to the possibility of over pumping groundwater. If the groundwater extracted excessively, the saltwater could intrude into the groundwater system and cause the problem. Thus, to prevent this situation from happen, the coastal wetland which known as the beach ridges interspersed with swales (BRIS) soil system area need to be taken care of, as it can recharge the groundwater. Even though this area has been neglected and undervalued for their ecosystem services (purifying groundwater), there are the potential of this area to prevent the saltwater intrusion from happened. Hence, this paper will highlight the potential of BRIS soil system in preventing the saltwater intrusion.

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Section: Saltwater Intrusionmentioning

confidence: 99%

Preventing saltwater intrusion in the Coastal of Terengganu, can BRIS soil system help?

Syazuani

Edlic

Sofiyan

et al. 2022

IOP Conf. Ser.: Earth Environ. Sci.

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“…Abandoned farmland is found in various regions worldwide (Cerdà et al, 2019;Levers et al, 2018) Data from FAO shows that salinity affects more than 6% of land worldwide whose area exceeds 1 billion ha in about 100 countries that are threatened by these conditions, even there is a phenomenon of an increase of 10% every year (Dinh et al, 2018). There are rice elds bordering ponds in many coastal areas not utilized due to saltwater intrusion, so they experience environmental problems related to the saltwater intrusion (Dien et al, 2019;Xiao et al, 2021), many similar lands are abandoned due to saline water intrusion (Agboola et al, 2020;Cerdà et al, 2019). The same thing happened in Vietnam's Mekong Delta, where the saltwater intrusion has become a severe problem, especially near the coastline (Dien et al, 2018).…”

Section: Introductionmentioning

confidence: 99%

Cultivation of rice and tiger shrimp system in brackish water induced land

Sahabuddin

Agus²,

Nafisah³

et al. 2023

Preprint

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Land that is displaced due to seawater intrusion is very much found in Indonesia, even in the world, usually rice fields adjacent to ponds. This study aims to try wasteland for the cultivation of rice and tiger shrimp with a brackish water system. The land used belongs to a farmer group that has not been used for the past ten years due to seawater intrusion, located in Oring Hamlet, Lawallu Village, Barru Regency, South Sulawesi Province, Indonesia. Owners leave their lands unproductive, often even diverted to anthropogenic activities. The abandoned land was reconstructed into rice fields for rice crops and trenches for tiger shrimp cultivation. The rice seeds used are saline tolerant, namely the INPARI-34 and INPARI-35 varieties obtained from the Sukamandi Indonesia Rice Seed Center, Ministry of Agriculture. Planted in the rice field after seeding for 25 days. Tiger shrimp post larvae have been adapted for 30 days at a salinity of 7 − 5 ppt (low salinity), with a dense spread of 4 individuals per m2 (traditional plus system). Integrated maintenance of rice and tiger shrimp, following the cultivation procedures, namely, rice weeding, eradication of rice pests and tiger shrimp, and additional fertilization. A sampling of rice and tiger shrimp growth and water quality selection is carried out every 14 days. The results showed that saline-tolerant rice varieties INPARI 34 and INPARI 35 can grow well in saltwater-induced fields with a rice maintenance period of 105 days. Tiger shrimp cultivation integrated with salt-tolerant rice varieties produces a survival value of 20%, and a body weight of 12 grams/individu for 65 days of cultivation.

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“…The groundwater source in the coastal region of the Mekong Delta is deemed vulnerable to anthropogenic activities, including agricultural production, dam construction, as well as the effects of climate change [1,[7][8][9]. In addition, the report of Xiao et al (2021) [10] has shown that groundwater quality degradation due to saline intrusion is an important problem in the Mekong Delta. According to Zhang et al (2017) [11], seawater intrusion in the south-eastern Arabian Peninsula has caused the degradation of groundwater quality, which is predicted to be even more serious with global warming.…”

Section: Introductionmentioning

confidence: 99%

Seasonal Variations in Groundwater Quality under Different Impacts Using Statistical Approaches

Giao

Huynh

2023

Civ Eng J

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The objective of this study was to evaluate seasonal fluctuations in groundwater quality, determine the effects of different stressors on this resource, and recognize the potential pollution sources in a coastal region of southern Vietnam. Eleven samples collected in Ben Tre province during the dry and wet seasons were then analyzed for sixteen parameters, including pH, total dissolved solids (TDS), salinity, total hardness (TH), ammonium (NH₄⁺-N), nitrite (NO₂ˉ-N), nitrate (NO₃ˉ-N), sulfate (SO₄²ˉ), chloride (Clˉ), iron (Fe), manganese (Mn), lead (Pb), mercury (Hg), arsenic (As), coliforms, and Escherichia coli (E. coli). Pearson correlation analysis, principal component analysis (PCA), and cluster analysis (CA) were employed. The results indicated that total dissolved solids, salinity, total hardness, Clˉ, E. coli and coliform were detected as contaminants in groundwater samples. The trend of fluctuations in the parameters was mostly higher in the dry season. Which Mn and coliform significantly fluctuated between the dry and wet seasons. Activities in industrial-craft areas, landfills and seawater-intruded areas negatively impacted groundwater quality, typically TDS in industrial-craft areas, coliform and E.coliat the landfill area. Six principal components obtained from PCA could explain 93.6% of the variance, and all parameters are responsible for variations in groundwater quality. Geology, discharged wastewater, landfill leachate, agricultural activities, and saltwater intrusion can be considered representative factors. CA grouped the collected samples into four clusters based on the similarity in water properties. The analysis results showed that the locations in each cluster have outstanding water quality characteristics, clusters I and III have high TDS characteristics, cluster II has coliforms, and cluster IV sets of locations with high salinity. This study is promised to partially fill the gap in comprehensive information on groundwater quality in the coastal province so that policymakers can develop sustainable water management strategies in the future. Doi: 10.28991/CEJ-2023-09-03-01 Full Text: PDF

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Saltwater intrusion into groundwater systems in the Mekong Delta and links to global change

Cited by 47 publications

References 65 publications

Preventing saltwater intrusion in the Coastal of Terengganu, can BRIS soil system help?

Preventing saltwater intrusion in the Coastal of Terengganu, can BRIS soil system help?

Cultivation of rice and tiger shrimp system in brackish water induced land

Seasonal Variations in Groundwater Quality under Different Impacts Using Statistical Approaches

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