Paper Information

Journal:   PLANT AND ECOSYSTEM   FALL 2010 , Volume 6 , Number 23; Page(s) 109 To 127.
 
Paper: 

THE STUDY OF VARIATION OF QUALITY AND QUANTITY OF GROUND WATER IN HAMEDAN-BAHAR AREA

 
Author(s):  GHASEMI ADEL, ZARE ABYANEH HAMID, SHAHSAVAR A.M.*, YAGHOBI KIKILEH B.
 
* SOIL SCIENCE DEPARTMENT. THE ISLAMIC AZAD UNIVERSITY, ROODEHEN BRANCH
 
Abstract: 

This study focused on considering Hamedan-Bahar area water quality and quantity. To achieve this purpose 30 wells with good dispersion and good quality were selected. Quality variations were studied every month for each well in different years and water table (W.T.) similar Tisane's polygons of wells in 15 years (1991-2006) were determined. The results showed that W.T. of area because of city development, agriculture and incorrect managements was decreased abaut 11m. Head lost in years 1991 to 1996 rather than years of 1996 to 2001 was decreased and in years 2001 to 2006 good precipitations and management were controlled. Wells on based of Wilcox diagram in 2 quality groups (EC<750dSm-1 and EC>750dSm-1) were classified. Considering the correlation between SO42- and Cl1- showed that group 2 is affected by contamination source. Results of quality analyses showed that regarding nearer area to city and industrial region the quality in direction of ground water flow from south of east to north of east to C3S1 ,class was decreased. According to Wilcox diagram, water is used for agriculture without banning. Piper diagram showed that bicarbonatcalcic and bicarbonatsodic are two sources for water. Affections of water quality from time and location with absolute randomized block in several observations on 2 treats (1 and 2) and 30 repetitions (well locations) in 3 blocks were built. In time aspect 1% level was insignificant and in local aspect 1% level was significant. In spite of insignificant of time a significant decrease in water quality was seen. For the validation of results anevaluation on average of data with Duncan-test was done. Duncan test showed that average of parameters was lower in group 1.

 
Keyword(s): HAMEDAN-BAHAR AREA, GROUNDWATER QUALITY, PIPER DIAGRAM, WILCOX DIAGRAM
 
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