tailieunhanh - Assessment of salin ity intrusion in coastal districts of Ben Tre province using Landsat 8 image

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. | Trường Đại học Nông Lâm TP. Hồ Chí Minh 45 Assessment of salinity intrusion in coastal districts of Ben Tre province using Landsat 8 image Lam N. Le1 Trung V. Le2 amp Thinh V. Tran3 Faculty of Land Management and Real Estate Nong Lam University Ho Chi Minh City Vietnam 2 Faculty of Environment and Natural Resources Ho Chi Minh City University of Technology Ho Chi Minh City Vietnam 3 Faculty of Agronomy Nong Lam University Ho Chi Minh City Vietnam ARTICLE INFO ABSTRACT Research Paper Monitoring and evaluation of saline water intrusion is an important task especially for agricultural production in Ben Tre province. The Received June 01 2020 paper introduces a new solution in the application of Landsat 8 Revised July 30 2020 satellite imagery and field survey data to determine the soil electrical Accepted August 21 2020 conductivity EC for soil salinity assessment through the distribu- tion of EC indice value. Analyzing and establishing the correlation Keywords between reflectance value salinity indices and EC allow selecting a suitable model for the creation of a soil salinity map in 4 levels Climate change corresponding to EC values no salinity 0 - 4 mild 4 - 8 moderate 8 - 16 very salinity gt 16 . Research results in 2019 showed that Electrical conductivity EC most of the coastal districts of Ben Tre province were salty with Landsat 8 OLI EC values ranging from 8 to 16. The salinity decreased gradually Salinity from the East Sea to the mainland with the distance from 15 to Remote sensing 25 km. In brief the study proposed solutions for rapid monitoring and evaluation of soil salinity based on the easy access of Landsat 8 Corresponding author images to calculate the necessary indices in the establishment of soil salinity maps for the local and regional scale. Le Ngoc Lam Email lengoclam@ Cited as Le L. N. Le T. V. amp Tran T. V. 2020 . Assessment of salinity intrusion in coastal districts of Ben Tre province using Landsat 8 image. The Journal of .