Journal Name:
- Review Of Research
Keywords (Original Language):
| Author Name | University of Author |
|---|---|
Bookmark/Search this post with
Abstract (Original Language):
Detailed geological and hydro-geological investigations have been carried out
for a part of Vidrupa River basin, Akola District, Maharashtra with emphasis on
pumping test analysis with an aim to understand the hydro-geochemical, geophysical,
geological, geomorphological and environmental control on the groundwater regime of
the region. The study area is characterized by the presence of 350m thick horizontal
sequence of lava flows which can be divided in simple and compound units based on their
field characters, textual parameters and geomorphic expression.
Detailed study of geomorphic features and the analysis of the remotely sensed
data through visual interpretation of the Vidrupa River basin around Telhara region,
Akola District were carried out to elucidate the role of various morphometric features,
geomorphic processes and structural trends in the evolution of the landscape. The results
indicate the presence of seven distinctly different geomorphic units which include
alluvial plain, bajada zone, moderately dissected plateau, highly dissected plateau,
plateau top, structural ridge and denudational hill. Hill slopes exhibit stepped
appearance with parallel retreat during pediplanation due to differential erosion of
various litho units exposed in the region. The structural, denudational and alluvial
landforms, on the basis of land use and land cover have been sub-divided into
agriculture land, built up land, wasteland and water bodies. In addition, remote sensing
techniques have been effectively utilized in identifying the potential aquifers so as to
enable groundwater exploration in the region. The present investigation based on
numerous topographical profiles have shown the presence of marked flat terraces at
different levels indicating the present state of the cycle of erosion and landform
development. The results confirm the hydrogeological and morpho-tectonic conditions,
which have also helped in locating suitable aquifers for the water resource development
of the region.
Major element chemistry of groundwater samples from dug wells and bore
wells from 100 selected sites from the Vidrupa region during pre-monsoon and postmonsoon
periods has been analyzed to understand the groundwater quality and its
impact on the environment. Various thematic maps showing the distribution of various
elements and their ration along with iso-contour maps of physico-chemical parameters
have been utilized to understand the water quality management of the region. Pumping
test results have highlighted the safe yield and other related parameters which have
helped in improving the groundwater resource of the region.
Hydro-geological studies have thrown light on the water level fluctuations in
the region with emphasis on water resource and environmental management of water
quality. The results of the chemical analysis indicate that both the surface and
groundwater are suitable for drinking and irrigation purposes. The results of
geophysical resistivity studies have thrown light on the nature of sub surface geology of
the region along with groundwater potential zones. The highly fractured, amygdaloidal and weathered
basaltic horizons have yielded sufficient amount of water whereas, the compact and massive portions show
poor yield in the region. In this study, an attempt has been made to suggest various suitable measures for
improving the groundwater potential of the area with due emphasis on water resource management.
Detailed environmental analysis was carried out to understand the water level fluctuations and quality of
water. In addition, suitable remedial measures were suggested for water resource development and
management of the region.
FULL TEXT (PDF):
- 3