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- W2736717856 abstract "Salinity intrusion is one of the major water-related problems in the coastal region of Bangladesh. The intention of this study was to discuss the spatial distribution of soil and water salinity with their severity levels using geospatial techniques. The spatial analysis shows about 222 300 ha of new land being affected by various degrees of soil salinity during the last four decades. The analysis revealed that the spatial extent of salinity has been following an increasing trend and the movement of soil salinity has moved north from the coast. An increasing trend of salinity concentration in the rivers has already been found in the Lower Meghna River, Alaipur Khal (creek) of Daratona River, Gorai Madhumati, Rupsa Passur River and Bishkhali River in different districts of coastal Bangladesh. The groundwater is contaminated with a high level of salinity, which affects sources of drinking water, agriculture and the irrigation sector. Increased soil and water salinity levels cause an unfavourable environmental and hydrological situation that restricts usual crop production throughout the year. This research will assist decision makers and planners in taking proper initiatives for developing integrated land and water resources management plans for the coastal regions, which have similar environmental settings along the Bay of Bengal. Copyright © 2017 John Wiley & Sons, Ltd. Les intrusions salines sont l'un des principaux problèmes liés à l'eau dans la région côtière du Bangladesh. Cette étude avait pour but de discuter de la répartition spatiale de l'intensité de la salinité des sols à l'aide de techniques géo-spatiales. L'analyse spatiale montre qu'environ 222 300 ha de nouvelles terres sont touchés par divers degrés de salinité des sols au cours des quatre dernières décennies. L'analyse a révélé que l'étendue spatiale de la salinité a suivi une tendance croissante et que le mouvement de la salinité du sol a atteint le nord de la côte. On a déjà observé une tendance croissante à la concentration de salinité dans les rivières Meghna, Alaipur Khal (rivage), Daratona, Gorai Madhumati, Rupsa Passur et Bishkhali dans différents districts du Bangladesh côtier. L'eau souterraine est contaminée par un niveau élevé de salinité, qui affecte les sources d'eau potable, l'agriculture et le secteur de l'irrigation. L'augmentation de la salinité des sols et de l'eau provoque des conditions environnementales et hydrologiques défavorables, qui limitent la production agricole tout au long de l'année. Cette recherche aidera les décideurs et les planificateurs à prendre des initiatives appropriées pour l'élaboration de plans intégrés de gestion des terres et des ressources en eau pour les régions côtières qui ont les mêmes paramètres environnementaux le long du golfe du Bengale. Copyright © 2017 John Wiley & Sons, Ltd." @default.
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- W2736717856 date "2017-07-18" @default.
- W2736717856 modified "2023-10-01" @default.
- W2736717856 title "Spatial and Temporal Variation of Soil and Water Salinity in the South-Western and South-Central Coastal Region of Bangladesh" @default.
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- W2736717856 doi "https://doi.org/10.1002/ird.2149" @default.
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