Salinity intrusion

Saline intrusion is a big challenge for the Mekong Delta region, a negative factor that greatly affects water and food security. This paper presents a study to assess the trend of saline intrusion change in the 5 coastal sub–regions between the Tien and Hau rivers in the period 1997 to 2022.

10p vibecca 01-10-2024 2 1   Download

This study aims to investigate the characteristics of the salinization phenomenon in water systems and its controlling factors based on hydrogeochemical analysis, seawater-freshwater mixing model and End Members Mixing Analysis.

11p vibecca 01-10-2024 0 0   Download

The study on assessing the impacts of saline intrusion on water resources, from building a hydraulic model MIKE 11 including hydraulic model, rain model, and advection–dispersion module (HD + RR + AD) together with the calculation scenarios in consideration of climate change through the high scenarios RCP 8.5 and low scenarios RCP 4.5 in 2025, 2030 and 2050 are highlighted in the paper.

13p viyoko 01-10-2024 5 0   Download

This paper presents the long-term morphological changes of the sand spits at the Ken Inlet in Ha Tinh Province and Phan Inlet in Binh Thuan Province, Vietnam. The analysis results show that the sand spit morphology at Ken Inlet was drastically changed before the completion of the Da Bac sluice gate construction in 1992, after that the sand spit elongation rate became stable at a rate of about 68 meters per year.

11p vifilm 24-09-2024 3 1   Download

In this study, the response of salinity intrusion to the river mouth morphological changes induced by the 2011 Tsunami is investigated. The topographical changes caused by the tsunami are mainly divided into two stages.

16p vifilm 24-09-2024 1 1   Download

Saltwater intrusion has become a significant problem in coastal regions across the globe, including Vietnam, impacting resident livelihoods, economies, and societies. Particularly, the Mekong Delta region plays a pivotal role in Vietnam’s economy and agriculture, serving as a crucial source for Vietnam’s socio-economic development and environmental sustainability.

19p vifaye 20-09-2024 2 1   Download

With the impact of global climate change, saline intrusion into surface water in coastal areas has become a major issue. The water treatment using surface water in these areas has to deal with double issues including organic matters and salinity. This paper evaluated the trihalomethanes formation during the treatment of surface water at pilot scale using different disinfection dose and at different salinity levels.

11p vifaye 20-09-2024 1 1   Download

Salinity intrusion poses significant challenges to coastal regions worldwide. Reliable salinity prediction models can provide valuable information to mitigate the impact and influence of salinity intrusion. However, their accuracy relies mainly on the selected input variables and used optimal models. This study employs the Bayesian Model Averaging (BMA) algorithm to evaluate input variable importance and select the most reliable salinity prediction model.

15p vifaye 20-09-2024 1 1   Download

The study determines the predominant hydrogeological controls on salinity distribution and salinization/freshening, proposing conceptual models to explain the different vertical distributions of groundwater salinity at the coastline. An improved understanding of the sources of salinity and the hydrogeological controls will subsequently provide support for the future management of groundwater in the Western Port Basin, and serve as a template for how to unravel complex salinity distributions in coastal aquifers, and their relationships to palaeo- and recent geomorphological histories.

314p runthenight05 01-03-2023 9 4   Download

The aim of this work was to determine effects of the amount of phosphorus fertilizer and the frequency of application on growth, yield and quality of coconut tree at early reproductive stage under saline intrusion condition.

10p larachdumlanat129 19-01-2021 16 2   Download

Monitoring and evaluation of saline water intrusion is an important task, especially for agricultural production in Ben Tre province. The paper introduces a new solution in the application of Landsat 8 satellite imagery and field survey data to determine the soil electrical conductivity (EC) for soil salinity assessment through the distribution of EC indice value.

11p larachdumlanat129 19-01-2021 32 2   Download

Utilization of Coal bottom ash (CBA) as well as finding the solutions to prevent saline intrusion, meeting the needs of coastal infrastructure development have been considered by the authors of the article for a long time. In this study, the authors focused on analyzing capillary characteristics in order to find a suitable group of CBA particles, which can be applied in the design of foundations with the high ability in restricting or preventing the effects of salt in saline groundwater.

11p larachdumlanat129 14-01-2021 5 2   Download

Ham Luong River is a branch of Mekong River located in Ben Tre Province, which has played a crucial role in supporting livelihoods of local residents and the province's economic development. However, the saline intrusion has been expanding in Ham Luong River, which seriously affects the productive agriculture, aquaculture, and further causes tremendous difficulties for local people's lives.

8p larachdumlanat127 02-01-2021 10 2   Download

The thesis assesses the impact of livelihoods vulnerable sectors on livelihood outcomes in the context of saline intrusion in the Mekong Delta, examining the regulatory role of adaptive capacity in reducing mild effects of saline intrusion.

12p mmlemmlem_124 22-12-2020 16 2   Download

Biến đổi khí hậu (CC) là một vấn đề toàn cầu không chỉ ảnh hưởng đến các nước phát triển nhưng cũng là những người phát triển như Việt Nam. Với bờ biển khoảng 3.260 km, Việt Nam dự kiến ​​sẽ bị ảnh hưởng đáng kể bởi sự thay đổi khí hậu bao gồm xâm nhập mặn. Thông qua việc đánh giá tác động của biến đổi khí hậu về tài nguyên nước ở Hồng-Thái Bình và lưu vực sông Đồng Nai mà nằm ở hai vùng kinh tế trọng điểm, trong bài báo, một bức tranh chung về tác...

8p phalinh20 24-08-2011 91 16   Download

Trên cơ sở kết quả của dòng chảy mô phỏng của Ủy ban sông Mê Kông (MRC), kết hợp với mực nước biển dâng (SLR) và kịch bản độ mặn của IMHEN, bài báo trình bày các tác động của biến đổi khí hậu lũ lụt và xâm nhập mặn ở ĐBSCL. Đến năm 2050, khu vực bị ngập lụt tối đa và là hơn 0,5 m chiều sâu có thể lên đến 68,3% của toàn bộ diện tích đồng bằng sông Cửu Long.

7p phalinh20 24-08-2011 78 27   Download

This paper identifies five water environmental problems in the Delta that are the principal limiting factors of agricultural production and human health, i.e. (i) the salinity intrusion in the coastal areas, (ii) the effect of acid sulfate soils, (iii) the polluted water from human activities, (iv) the fresh water shortage in the dry season and (v) the flood in the rainy season. The discussion and conclusion present the people’s adaption strategies and water gorvernance issues in pursing sustainable management in the region.......

0p haivan 16-03-2009 230 36   Download