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Multivariate Statistik und GIS für die Bewertung der Grundwasserqualität
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ISBN10: 6206810194
ISBN13: 9786206810193
Publisher: Verlag Unser Wissen
Published: Apr 30 2025
Pages: 76
Weight: 0.25
Height: 0.18 Width: 6.00 Depth: 9.00
Language: German
ISBN13: 9786206810193
Publisher: Verlag Unser Wissen
Published: Apr 30 2025
Pages: 76
Weight: 0.25
Height: 0.18 Width: 6.00 Depth: 9.00
Language: German
Multivariate statistische Verfahren unter Einbeziehung von Faktorenanalyse und hierarchischer Clusteranalyse wurden an 45 Grundwasserproben aus dem Distrikt Dhaka durchgeführt, um die wichtigsten Prozesse zur Steuerung der Wasserchemie zu ermitteln. Die aus der Faktorenanalyse gewonnenen Hauptkomponenten zeigten, dass die für die Schwankungen der Grundwasserqualität verantwortlichen Parameter hauptsächlich mit natürlichen Quellen und anthropogenen Quellen wie Sickerwässern aus der Deponierung von Industrieabfällen, Abwasseraustritten aus menschlichen Siedlungen oder der Verwendung organischer Düngemittel zusammenhängen. Mit Hilfe einer hierarchischen Clusteranalyse wurden die Wasserproben in drei Cluster mit ähnlichen Wasserqualitätsmerkmalen eingeteilt. Die räumliche Analyse und Interpolation aller Elemente wurde mit Hilfe einer einfachen Kriging-Methode durchgeführt, die zu einer Verteilung der Hauptbestandteile (Na, Ca, Mg, Si und SO4), Nebenbestandteile (K, Fe, Sr und B) und Spurenbestandteile (Mn, Zn, Li, Ba und P) des Grundwassers führte. Die Untersuchung der unterirdischen Geologie ergab, dass der Dupi Tila-Grundwasserleiter unter Dhaka die Hauptquelle für das Grundwasser ist. Diese Arbeit soll als Grundlagenstudie für ein wirksames Grundwasserschutzmanagement dienen.
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