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Srinivasa Reddy, K.
- Principal Component Analysis:Deeper Aquifer Groundwater Quality of Bhaskar Rao Kunta Watershed, Nalgonda District, Andhra Pradesh, India
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Authors
Affiliations
1 Central Research Institute for Dryland Agriculture (CRIDA), Santoshnagar, Hyderabad-500 059, A. P., IN
2 Central Ground Water Board (CGWB), Southern Region, Hyderabad-500 059, A. P., IN
1 Central Research Institute for Dryland Agriculture (CRIDA), Santoshnagar, Hyderabad-500 059, A. P., IN
2 Central Ground Water Board (CGWB), Southern Region, Hyderabad-500 059, A. P., IN
Source
Nature Environment and Pollution Technology, Vol 11, No 3 (2012), Pagination: 425-429Abstract
Principal component analysis (PCA) is an appropriate tool for water quality evaluation and management. In the study area, PCA was used for multivariate factor analysis of hydrogeochemical variables of pH, EC, Ca2+, Mg2+, Na+, K+, HCO3-, SO42-, Cl-, NO3-, F-, TH and TDS. Influence on chemical composition of groundwater quality and statistically characterize (Eigen value ≥ 1 and % of variance) two factors were extracted as well as identified, principal component-I and II. The principal component-I accounts for 36.62 and 39.80% of variance and principal component-II accounts for 17.84 and 18.10% of variance in pre and post-monsoon seasons respectively. Graphical presentation of the principal component-I and II showed loading relationship between the variables EC, TDS and Ca2+ as high positive relation; and variables between TH, Mg2+, NO3- and F- as low positive relation in pre-monsoon season. Principal component-I and II showed loading relationship variables between pH, as high positive relation; and variables between HCO3- and SO42- as high positive relation in post monsoon seasons respectively. These two principal components results were predicted for hydrochemical process of rock water interaction, process of degradation products of the ions, process of alkalinity and process of anthropogenesis activity. It was concluded that hydrochemical process is controlled by geogenic and non-geogenic factors.Keywords
Bhaskar Rao Kunta Watershed, Groundwater Quality, Principal Component Analysis, Hydrogeochemical Process.- Groundwater Quality Assessment of Bhaskar Rao Kunta Watershed, Nalgonda District, Andhra Pradesh, India
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Authors
Affiliations
1 Central Research Institute for Dryland Agriculture (CRIDA), Santoshnagar, Hyderabad-500 059, A. P., IN
2 Central Ground Water Board (CGWB), Southern Region, Hyderabad-500 059, A. P., IN
3 Debre Markos University, ET
1 Central Research Institute for Dryland Agriculture (CRIDA), Santoshnagar, Hyderabad-500 059, A. P., IN
2 Central Ground Water Board (CGWB), Southern Region, Hyderabad-500 059, A. P., IN
3 Debre Markos University, ET
Source
Nature Environment and Pollution Technology, Vol 11, No 4 (2012), Pagination: 717-724Abstract
Semi-arid region of Bhaskar Rao Kunta watershed was studied to evaluate hydrogeochemical characteristics of the fractured, semi-confined and water-stressed aquifers. Twenty groundwater samples were collected from deeper bore wells during pre and post monsoon seasons in June and December 2009. The samples were analysed for concentration of physico-chemical parameters (pH, EC, TDS, TH, Ca2+, Mg2+, Na+, K+, HCO3-, SO42-, Cl-, NO3- and F-). The results were interpreted with Piper, Gibbs and Wilcox diagrams. For interrelationships, the parameters were measured with correlation matrix and t-test methods. Bureau of Indian Standards specifications were used and verified for suitability of groundwater quality. The type of the groundwater quality was understood from the interpreted diagrams of Piper (85% magnesium bicarbonate and 15% mixed type of samples), Gibbs (100% evaporation type samples) and Wilcox (85% high salinity and 15% moderate salinity type of samples). The highest correlation was found between EC and TDS with a correlation coefficient of 0.98 and the t-test behaviour was not significance, therefore, the geogenic and rock water interaction was negligible with respect to seasonal variation. Due to high concentration of fluoride (<1.5mg/L) and salinity (750 ≤ 2250 μS/cm), the groundwater quality was not suitable for drinking, and special drainage system and crop practices are requisite for irrigation purpose in the study area.Keywords
Bhaskar Rao Kunta, Watershed, Hydrogeochemistry, Piper Diagram, Gibbs Diagram, Wilcox Diagram.- Change Detection Studies Using Remote Sensing and GIS for Aquaculture Growth in Buchireddipalem Mandal, SPSR Nellore District, Andhra Pradesh
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Authors
Affiliations
1 IIC Technologies Limited, # C-302, S/2, Sachivalayanagar, Vanasthalipuram, Near E-Seva Centre, Hyderabad-500 070, A. P., IN
2 Central Research Institute for Dryland Agriculture, Santoshnagar, Hyderabad-500 059, A. P., IN
3 Marine Technologies, Chennai, IN
1 IIC Technologies Limited, # C-302, S/2, Sachivalayanagar, Vanasthalipuram, Near E-Seva Centre, Hyderabad-500 070, A. P., IN
2 Central Research Institute for Dryland Agriculture, Santoshnagar, Hyderabad-500 059, A. P., IN
3 Marine Technologies, Chennai, IN