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• W2289532862 abstract "Multivariate statistical techniques including cluster analysis (CA), principle component analysis (PCA), and analysis (FA) was applied to the water analyses data of the irrigation channel located in Gopalganj, which is one of the interior coastal districts of Bangladesh. The intention of the study was to identify factors controlling water quality in dry (December to February) and pre-monsoon (March to May) season. Total seventy water samples were collected from ten sampling stations in seven sampling phases; twenty water samples were collected in the dry season in two sampling phases, and fifty water samples were collected in the pre-monsoon season in five sampling phases. Twelve water quality parameters namely pH, Total Dissolved Solids (TDS), Electrical Conductivity (EC), Sodium (Na + ), Potassium (K + ), Calcium (Ca ++ ), Magnesium (Mg ++ ), Bicarbonate (HCO3 - ), Chloride (Cl - ), Phosphate (PO4 2- ), Sulfate (SO4 2- ), and Nitrate (NO3 - ) were analyzed in the Environmental Quality Laboratory of Khulna University by following standard methods. HCA was applied on the channel water analyses dataset that clustered the parameters into three groups which were distinctive for the two seasons. PCA was conducted to ensure how many factors to be extracted by Factor Analysis (FA). FA analysis revealed that three latent factors namely salinity-water hardness factor, biological activity factor, and anthropogenic pollution factor controlled the water quality of the dry season with 52.6%, 18.9%, and 18.2% of the total variance, respectively. However, the water of the pre-monsoon season was controlled by factor and organic pollution factor with 62.9% and 22% of the total variance, respectively. Irrigation with this salinity affected water might reduce agricultural production. Proper initiative such as storing freshwater before saline water intrusion might be excellent solution. Hence, multivariate statistical methods are found to be significant to assess the water quality controlling factors for short time duration, even within a season. These are worthy for water resources managing authorities to observe intricate nature of water quality issues and, operate and maintain the water flow controlling structures, such as sluice gates on water courses, thereby keep water suitable for agriculture and other uses. Storing of rain and freshwater in this irrigation channel before salinity intrusion might be an excellent solution to the inhabitants of the newly salinized interior coast of Bangladesh like Gopalganj district." @default.
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• W2289532862 date "2015-01-01" @default.
• W2289532862 modified "2023-09-23" @default.
• W2289532862 title "Irrigation Channel Water Quality Monitoring by Multivariate Statistical Methods in the Interior Coastal District of Bangladesh" @default.
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• W2289532862 doi "https://doi.org/10.6084/m9.figshare.1400006" @default.
• W2289532862 hasPublicationYear "2015" @default.
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