Document Type : Research Paper
Authors
Department of Geography, Faculty of Humanities, Meybod University, Meybod, Iran.
Abstract
Growing water demand in various sectors including agriculture, industry, drinking
water and eventually increasing production and risk of pollution have imposed
mounting pressure on water resources. The relative stability of renewable water
resources makes it necessary to pay special attention to the conservation and
optimal use of these resources, especially in desert areas such as Iran, and this
requires careful and principle planning for the optimal use of existing water
resources. In this research, a descriptive-analytical method was adopted. The data
were collected from fifteen wells during an 8-year period (2010-2017). The
Kolmogorov-Smirnov method was recruited to assess the normality of data
distribution. Also, since the classical data (water quality data) did not take into
account the spatial distribution of groundwater quality parameters, we used the
geostatistics for this purpose. The results suggested that the dominant groundwater
type in the Bahadoran region was sodium chloride (NaCl), which is highly volatile.
This volatility can be attributed to cationic and anionic exchanges as well as the
dissolution of salt and gypsum in the neogene formation of the region. On the other
hand, overexploitation and increasing drainage of agricultural, residential and even
industrial wastewaters in the plain water resources have drastically influenced the
groundwater quality. In the second period of the studied period (2012-2013), the
level of maximum classes of most parameters has increased compared to the first
period, and these changes have increased with a greater slope in the third period.
According to the studies, the most important formations in terms of reservoir rock,
feed source of alluvial plains and groundwater quality are lower cretaceous
calcareous sediments of Bahadoran.
Keywords
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