Geoinformatics for groundwater characterization − A case study

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dc.contributor.advisorGrewal, M.S.
dc.contributor.authorBhat, Mohammad Amin
dc.date.accessioned2016-09-26T09:13:43Z
dc.date.available2016-09-26T09:13:43Z
dc.date.issued2014
dc.description.abstractThe block Gohana is part of Sonipat district which lies between 28º57' and 29 12' N latitude to 76º38' and 76º52' E longitude with total area of 36,448 hectares. To ascertain the quality of groundwater and its impact on physico-chemical properties soil, water samples were collected from all the villages of block and analysed by standard methods. Based on the results of water analysis, soil samples from eighteen sites were collected and analysed for their physico-chemical properties by standard procedures. This study was accomplished by employing Geoinformatics to delineate and estimate salt affected soils. Out of 2.41% of salt affected area, 1.13% is moderately salt affected and 1.28% is strongly salt affected. The pH, EC, SAR and RSC in groundwater ranged from 7.19 - 9.72, 0.29 -15.76 (dSm-1), 4.03 - 24.16 (mmol l-1)1/2 and 0 - 9.2(me l-1), respectively. The cations ( Na+, Ca2+, Mg2+, K+) and anions (Cl–, SO4 2–, HCO3 –, CO3 2– and NO3 –, F–) varied from 2.85 -114.6, 0.15 - 12, 0.45 - 36.2, 0.05 -0.99 (me l-1) and 0.8 - 115.4, 0.15 - 31.39, 0.5 - 12.4, 0-4.0 (me l-1) and 0.59 - 62.37, 0.08 - 1.52 ppm, respectively. As per the water quality classification criteria suggested by All India Coordinated Research Project (AICRP) on Management of Salt Affected Soils and Saline Water Use in Agriculture (1989), 23 samples were found to be of good quality, 8 marginally saline, 5 saline, 15 high SAR saline, 11 marginally alkali, 7 alkali and 12 highly alkali. Soil profiles were collected based on different categories of irrigation water. Most of the profiles were having salt developed due to the presence of salts in irrigation water. The highest and lowest values of cation exchange capacity, exchangeable sodium percentage, organic carbon and calcium carbonate of soils of block Gohana were 2.34, 22.19 cmol (p+) kg-1; 3.42, 72.26 percent; 0.09, 0.57 percent and 0.10, 7.00 percent, respectively. The highest and lowest values of electrical conductivity, pH and sodium adsorption ratio of soil saturation extract of soils of Gohana were 1.26, 15.82 (dSm-1), 7.06, 9.74 and 2.68, 36.85 (mmol l-1)1/2, respectively. Most of the soil profiles were low in fertility. Highest electrical conductivity and sodium adsorption ratio of saturation extract were observed in surface layers of the soil which gradually decreased with depth irrespective of texture and quality of irrigation water. After the analysis of soil and water, the Arc Map was used to create various thematic maps like pH, EC, SAR, RSC and ESP of the study area. These thematic maps were combined to prepare water and soil quality maps.en_US
dc.identifier.urihttp://krishikosh.egranth.ac.in/handle/1/78764
dc.language.isoenen_US
dc.publisherCCSHAUen_US
dc.subSoil Science
dc.subjectGeoinformatics, LISS-III, pH, EC, SAR, RSC, ESP, CEC, OC, CaCO3en_US
dc.these.typeM.Sc
dc.titleGeoinformatics for groundwater characterization − A case studyen_US
dc.typeThesisen_US
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