Saltwater intrusion (SI) associated with El Nino phenomenon is a particularly concerned issue in a period of 2015–2016. Salinity evolutions in the Mekong Delta and Vinh Long province are becoming serious. Therefore, this work aimed at assessing changes in saltwater intrusion in Vinh Long province during recent ten years (2007–2016), including changes in the highest, the lowest, and average salinities. Besides, 19 surface water samples were collected and analyzed to evaluate the current status of salinization in 2016. Results showed that the salinity tends to propagate into the infield, especially in Co Chien River ( to ‰), followed by Hau River ( to ‰) and other inland waterways (– ‰), leading to certain impacts on agriculture, aquaculture, and water supply in the local in general. | TAÏP CHÍ PHAÙT TRIEÅN KH&CN, TAÄP 20, SOÁ T4- 2017 Assessing changes in saltwater intrusion in some main rivers of Vinh Long province • • Le Ngoc Tuan Phan Ngoc Minh University of Science, VNU-HCM (Received on 22th December 2016, accepted on 30th October 2017) ASBTRACT Saltwater intrusion (SI) associated with El Nino phenomenon is a particularly concerned issue in a period of 2015–2016. Salinity evolutions in the Mekong Delta and Vinh Long province are becoming serious. Therefore, this work aimed at assessing changes in saltwater intrusion in Vinh Long province during recent ten years (2007–2016), including changes in the highest, the lowest, and average salinities. Besides, 19 surface water samples were collected and analyzed to evaluate the current status of salinization in 2016. Results showed that the salinity tends to propagate into the infield, especially in Co Chien River ( to ‰), followed by Hau River ( to ‰) and other inland waterways (– ‰), leading to certain impacts on agriculture, aquaculture, and water supply in the local in general. In Vinh Long province, Vung Liem and Tra On districts were relative significantly influenced by SI, requiring suitable control measures, particularly in the context of climate change. Key words: saltwater intrusion, climate change, salinity INTRODUCTION In the context of climate change (CC), many areas around the world are facing to disasters such as heavy storms, flood, drought, saltwater intrusion (SI), etc. leading to serious damages. According to The Australian Foundation for the Peoples of Asia and the Pacific (AFAP) Vietnam [1], to the end of the 21st century, if CC is not effectively reduced, VietNam will lose at least % of land, where 23 % of the population are living, leading to serious affects to low delta areas – one of the most important granaries of the world by flood and SI. CC and sea level rise make SI evolution more and more complex. Salinity tends to propagate into the .
