Environmental changes near the Mekong Delta in Vietnam using remote sensing

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Abstract

This study is an attempt to use satellite imagery for the assessment of environmental changes near the Ba Lai River, Mekong Delta, in Vietnam. Landsat imagery was used to calculate water quality variables as well as land cover changes near Ba Lai River, both before and after the construction of an irrigation dam in 2002. A lot of changes in land use and land cover were observed in this area since the construction of the Ba Lai dam, particularly in the agricultural practice such as rotational plantation of rice and other crops. The present study stated that water quality has decreased and became polluted with organic materials between 1988 and 2006. Water quality variables such as chlorophyll (algae), nitrogen, and phosphorus were highly increased, whereas turbidity levels have slightly increased since the dam construction, possibly due to alluvial silty deposition.

Keywords

Ba Lai River Ecosystem Landsat Mekong delta Water quality variables 

Notes

Acknowledgements

Bijeesh Kozhikkodan Veettil acknowledges Department for Management of Science and Technology Development (DEMASTED), Ton Duc Thang University, Vietnam, for research support. We would like to acknowledge the United States Geological Survey (USGS) for Landsat data.

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Copyright information

© Accademia Nazionale dei Lincei 2018

Authors and Affiliations

  1. 1.Department for Management of Science and Technology DevelopmentTon Duc Thang UniversityHo Chi Minh CityVietnam
  2. 2.Faculty of Environment and Labour SafetyTon Duc Thang UniversityHo Chi Minh CityVietnam
  3. 3.Department of Environmental Management and Technology, Institute of Tropical Biology (ITB)Vietnam Academy of Science and TechnologyHo Chi Minh CityVietnam
  4. 4.Graduate University of Science and Technology, Vietnam Academy of Science and TechnologyHanoiVietnam

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