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Assessing the Effect of Landuse and Lithology on Spring Water Quality in Piranshahr Watershed
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Abstract: (8305 Views) |
| The springs of Piranshahr watershed are sources that supplies drinking and irrigation
water. Therefore, in this study geology and agricultural conditions is examined as the most important factor controlling spring water quality. After
recording the geographical location of
145 springs, sampling was done in September 2012. The electrical conductivity (EC)
were measured in the study area, whereas The values of other parameters, such as sodium ions, calcium ions, magnesium ions, potassium ions, carbonate ions, bicarbonate ions, chloride ions and sulfate ions were measured in the laboratory. Water quality parameters
was analyzed, in which, the Piper diagram show the six types of water, including Ca-HCO3, Mg-HCO3, Ca-SO4,
Mg-SO4, Na-HCO3 and Na-SO4. To investigate the influence of
lithology (seven types of lithology) and landuse (two types of landuse) on
spring’s water quality, the statistical analysis of variance (ANOVA) and t test
was used, respectively. The results of statistical analysis showed that the parameters of springs, including EC, TDS, CO32-, HCO3--, Cl-, Ca2+, Mg2+ and TH in different formations of the study area have significant differences. Finally, averages of the
water quality parameters of the lithology using Duncan test were compared.
Also, landuse have a significant effect on parameters including CO32-، Cl- and K+. Gibbs diagram based on the
results of chemical analysis showed that the chemical structure of water
quality influenced by lithology. So the first and second priorities of
influence on the water quality are lithology and landuse, respectively. |
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| Keywords: water quality, spring, hydro-chemical variables, analysis of variance (ANOVA), Piranshahr watershed |
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Full-Text [PDF 1070 kb]
(2775 Downloads)
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Type of Study: Research |
Subject:
Special
Received: 2015/06/1 | Accepted: 2015/06/1 | Published: 2015/06/1
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