1- , talebmoradinejad@yahoo.com
Abstract: (182 Views)
The Kowsar Dam is one of the great reservoir and is important due to supply of water for a large part in the south and southwest of the country. The aim of this study was water quality evaluation of the Kowsar Dam watershed. To achieve this goal, eighteen stations were selected for sampling along four tributaries of the Kowsar Dam and totally 72 samples were collected for analysis of chemical and biochemical parameters from January 2023 to October 2023. The maximum value of the physicochemical parameters i.e. electrical conductivity (EC), pH, Ca, Mg, Na, K, HCO3, SO4, Cl, NO3, O2, BOD and ORP were 6536(micromohos/cm), 8/71, 23, 7, 33, 6,17,44(meq/l), 27,12, 27(mg/l) and 35(mv), respectively. The lowest values were 412(micromohos/cm), 7/4, 2/4, 1/2, 0/19, 0/01, 2/75, 0/76, 0/15 (meq/l), 4/2, 0/17, 0/14(mg/l) and -229(mv) respectively. The average value of EC, NO3, DO, and BOD were 1448 (micromohos/cm), 5/9, 8/2 and 5/5 (mg/l), respectively for the reservoir water in the four periods of sampling. The variation domains of the qualitative parameters were quite significant indicating the natural and anthropogenic components effect, on input waters into the Kowsar Dam and variations of NO3, BOD and DO concentration represent anthropogenic impacts. In order to understand the conditions governing quality of water resources, multi variation statistics methods, such as HCA (Hierarchy Clustering Analysis), FA (Factor Analysis) were accounted.
Keywords: Water resources quality - Kausar Dam - Correlation matrix - Rotation matrix - Scree diagram
Type of Study: Original Research |
Subject:
Hydrogeology
Received: 2026/02/15 | Accepted: 2026/05/25
Received: 2026/02/15 | Accepted: 2026/05/25
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