Groundwater Quality and Management in Devanahalli Taluk, Bangalore Rural District, Karnataka, India: A Case Study
Author(s):
Shivanna S , Sir M Visvesvaraya Institute of Technology, Bangalore 562 157; Vyshnavi D R, Sir M Visvesvaraya Institute of Technology; Sriram Mustapure, East West College of Engineering
Keywords:
Groundwater, Pollution, Agrochemical, Rainfall, Devanahalli
Abstract:
The quality and quantity of groundwater depends upon climate, physiography, geology and human settlement. Earlier groundwater was considered to be less vulnerable for contamination when compared to surface water. But of recent it is at the peak of contaminations, envisaging for proper management techniques. The present study area being close to Bangalore metropolis, the impact of urbanization on the taluk on various fronts has been observed. The area lies between Lat 130 5’ to 130 23’ and Long. 770 33’ to 770 51’, with an aerial extent of 582 sq. kms. The average rainfall is 725mms. The area is covered by lateritic and lateritic gravely soils followed by red soils. The major rocks types are granites and granitic gneisses with pegmatite veins intruding. The inference drawn are based on the analysis of groundwater samples collected in the study area. Bangalore city being close to this area, it depends on day-to-day life for fresh fruits and vegetable. As a consequence, the farmers of this area, along with traditional crops have resorted to grow vegetable, groundnut, ginger, mulberry, grapes and citrus fruits to meet the city demand, which is more lucrative for them. This has resulted in over exploitation of groundwater. The important factor in deterioration of groundwater quality from non-point source contamination wherein chemical laced water is seen due to excess usage of chemical fertilizers, pesticides and insecticides in agricultural activity. The anomalies are noticed with respect to constituents such as Ca, Na, K, Cl and NO3.
Other Details:
| Manuscript Id | : | IJSTEV8I2016
|
| Published in | : | Volume : 8, Issue : 2
|
| Publication Date | : | 01/09/2021
|
| Page(s) | : | 37-41
|
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