Soil salinity is a global problem that has adverse effects on both agriculture and aquaculture production. The main objectives of this study were to observe the distribution pattern of soil salinity in the accreted and non-accreted land of the Noakhali district and to determine the intensity of salinity at different depths (1-2 cm, 15-20 cm, and 45-60 cm). Soil samples from 60 sampling sites were analyzed to measure electrical conductivity (EC). The two-way factorial ANOVA model revealed a significant effect of depth (p < 0.001) and sampling locations (p < 0.001) on soil salinity. After decomposition of this model, one-way ANOVA showed that 45-60 cm of depth contains significantly higher soil salinity (p < 0.01) ranging from 0.28 to 4.70 dS/m compared to 1-2 cm (ranging from 0.14 to 2.39 dS/m) and 15-20 cm (ranging from 0.18 to 2.37 dS/m) depth. In the case of accreted lands, surface (1-2 cm) and mid-layer (15-20 cm) soils were found slight to severely saline, while soil at a depth of 45-60 cm was found high to extremely saline. In all cases, salinity increases from the north to southwards and surface to downwards. Our results showed that the accreted land of the Noakhali district contains higher soil salinity compared to the non-accreted land, and soil salinity is positively correlated with depth. Assessment of suitable species and pattern of traditional cropping practices in the study area show conformity with our salinity profile. The study will help stakeholders associated with agricultural development and management in planning and designing the future land use and cropping practices.

Department of Environmental Science and Disaster Management Noakhali Science and Technology University Nokhali 3814 Bangladesh

Department of Oceanography Noakhali Science and Technology University Noakhali 3814 Bangladesh

University of South Bohemia in Ceske Budejovice Faculty of Fisheries and Protection of Waters South Bohemian Research Center of Aquaculture and Biodiversity of Hydrocenoses Research Institute of Fish Culture and Hydrobiology Zatisi 728 2 389 25 Vodnany Czech Republic

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Alam M.S., Uddin K. A study of morphological changes in the coastal areas and offshore islands of Bangladesh using remote sensing. Am. J. Geogr. Inf. Syst. 2013;2(1):15–18.

Alam M.Z., Carpenter-Boggs L., Mitra S., Haque M., Halsey J., Rokonuzzaman M., Saha B., Moniruzzaman M. Effect of salinity intrusion on food crops, livestock, and fish species at Kalapara Coastal Belt in Bangladesh. J. Food Qual. 2017:2045157.

Allison M.A. Historical changes in the Ganges–Brahmaputra delta front. J. Coastal Res. 1998;14:1269–1275.

Amin M., Faisal A.H.A., Farhada M. Crop adaptation in saline soils of Noakhali. I. Crop performance. Bangladesh Agron. J. 2011;14(1 & 2):43–52.

Anjum R., Khan A.S., Islam M.Z., Islam R., Bahadur N.M. Chemical and microbial analysis of potable water in public water supply of greater Noakhali, Bangladesh. Int. J. Sci. Eng. Res. 2017;8(12):1170–1174.

Banton O., Cimon M.A., Seguin M.K. Mapping field-scale physical properties of soil with electrical resistivity. Soil Sci. Soc. Amer. J. 1997;61(4):1010–1017.

Corwin D.L., Yemoto K. Methods of Soil Analysis. SSSA Book Ser. 5. SSSA; Madison, WI: 2017. Salinity: electrical conductivity and total dissolved solids.

Cuevas J., Daliakopoulos I.N., del Moral F., Hueso J.J., Tsanis I.K. A review of soil-improving cropping systems for soil salinization. Agronomy. 2019;9(6):295.

Dasgupta S., Hossain M.M., Huq M., Wheeler D. Development Research Group Environment and Energy Team. The World Bank; 2014. Climate Change, Soil Salinity, and the Economics of High-Yield rice Production in Coastal Bangladesh. Policy Research Working Paper 7140.

Dasgupta S., Hossain M.M., Huq M., Wheeler D. Climate change and soil salinity: the case of coastal Bangladesh. Ambio. 2015;44(8):815–826. PubMed PMC

Dasgupta S., Hossain M.M., Huq M., Wheeler D. Climate change, salinization and high-yield Rice production in coastal Bangladesh. Agric. Resour. Econ. Rev. 2018;47(1):66–89.

Davies C., Best J., Collier R. Sedimentology of the Bengal shelf, Bangladesh: comparison of late Miocene sediments, Sitakund anticline, with the modern, tidally dominated shelf. Sediment. Geol. 2003;155(3-4):271–300.

DOE . 2009. Climate Change Adaptation Research: Adaptive Crop Agriculture Including Innovative Farming Practices in the Coastal Zone of Bangladesh, DOE, Climate Change Cell, MOEF, Component 4b, CDMP, MOFDM.

DPIRD . Department of primary industries and regional development, Government of western Australia; 2019. Measuring Soil Salinity, Agriculture and Food.https://www.agric.wa.gov.au/soil-salinity/measuring-soil-salinity

Ghassemi F., Jakeman A.J., Nix H.A. CAB International; Wallingford, Oxon, UK: 1995. Salinisation of Land and Water Resources: Human Causes, Extent, Management and Case Studies. Canberra, Australia: the Australian National University.

Goodbred S.L., Jr., Kuehl S.A., Steckler M.S., Sarker M.H. Controls on facies distribution and stratigraphic preservation in the Ganges–Brahmaputra delta sequence. Sediment. Geol. 2003;155(3-4):301–316.

Haque S.A. Salinity problems and crop production in coastal regions of Bangladesh. Pakistan J. Bot. 2006;38(5):1359–1365.

Jakeman A.J., Olivier B., Hunt R.A., Jean-Daniel R., Ross A. Springer; Switzerland: 2016. Integrated Groundwater Management: Concepts, Approaches, and Challenges.

Mahmud M.T., Mukharjee S.K., Khalil M.I., Rahman M.A., Hossen F. Physicochemical and Microbiological analysis of tube-well water from Noakhali district, Bangladesh. World. 2016;3(1):50–55.

Mahmuduzzaman M., Ahmed Z.U., Nuruzzaman A.K.M., Ahmed F.R.S. Causes of salinity intrusion in coastal belt of Bangladesh. Int. J. Plant Res. 2014;4(4A):8–13.

Metternicht G.I., Zinck J.A. Remote sensing of soil salinity: potentials and constraints. Remote Sens. Envirn. 2003;85(1):1–20.

Michels K.H., Suckow A., Breitzke M., Kudrass H.R., Kottke B. Sediment transport in the self-canyon “swatch of No ground” (Bay of bengal) Deep Sea Res. II. 2003;50(5):1003–1022.

Milliman J.D., Rutkowski C., Meybeck M. NIOZ, Texel; The Netherlands: 1995. River Discharge to the Sea: a Global River index (GLORI) p. 125.

Paul B., Rashid H. Butterworth-Heinemann; 2016. Climatic Hazards in Coastal Bangladesh: Non-structural and Structural Solutions.

Rhoades J.D., Raats P.A.C., Prather R.J. Effects of liquid-phase electrical conductivity, water content, and surface conductivity on bulk soil electrical conductivity. Soil Sci. Soc. Amer. J. 1976;40:651.

Sattar S.A., Mutsaers H.J.W. Vol. 1. CDSP-II; Bangladesh: 2004. Agriculture in southeastern coastal chars of Bangladesh. Experiences and Guidelines (No. 12). Technical Report.

Shahid S. Rainfall variability and the trends of wet and dry periods in Bangladesh. Int. J. Climatol. 2010;30:2299–2313.

Shahidullah S.M., Talukder M.S.A., Kabir M.S., Khan A.H., Elahi N.E. Cropping patterns in the south east coastal region of Bangladesh. J. Agric. Rural Dev. 2006;4(1):53–60.

SRDI (Soil Resources Development Institute) Ministry of Agriculture; Dhaka, Bangladesh: 2010. Saline Soils of Bangladesh, SRDI.

Unveiling Microplastics in Commercial Brackish Water Fishes from the Lower Meghna River Estuary of Bangladesh

Spatial Distribution and Potential Health Risks of Arsenic (As) and Associated Metals (Fe and Mn) in the Coastal Accreted Land of Meghna River Estuary and Their Implication on the Agricultural Aspects