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ECONOMIC ASSESSMENT OF CROP PRODUCTION UNDER VARIABLE SALINE AND ALKALINE ENVIRONMENTS

KrishiKosh

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Title ECONOMIC ASSESSMENT OF CROP PRODUCTION UNDER VARIABLE SALINE AND ALKALINE ENVIRONMENTS
M.Sc.
 
Creator ARUN KUMAR GUPTA
 
Contributor B.S.Kalra
 
Subject Nuh block, Geo-spatial mapping, GIS technique, Secondary salinization, Resource management.
 
Description T-8757
Land degradation is a major threat to our food and environmental security. Indian agriculture is not an exception and several major irrigation commands are experiencing deterioration of soils due to soil salinity and waterlogging. Salinity in soil or water is one of the major stresses and especially in arid and semi-arid regions, can severely limit crop production. To assess this, a study was planned for characterizing the soil and water quality, for this purpose a study area was taken inNuh block in Mewat district of Haryana. This involved detailed spatial information on soil and ground water quality through actual resource survey, standard laboratory methods and GIS technique. After generating spatial maps of pH, EC and RSC, it was found that about 50.4% of ground water is affected with high salinity and alkalinity in the Nuh block (with ECmean = 2.87 dS/m; pHmean = 8.03; SARmean =16.78 and RSCmean = 4.77). This saline and alkaline ground water, participate in the secondary salinization of the soil in the study area. In the Geo-Spatial analysis of the soil quality of the study area, it was found that 51.8% land area was under threat of saline and alkaline soil and only 20.6% of the total land was under normal soil which was well suited for crop production. This saline and alkaline soil measured with pH, EC and SAR parameters. The mean values of soil quality parameters were found under threat condition (with ECmean = 3.29; pHmean = 8.08 and SARmean = 11.12). The ranges of above three mention parameters are so broad that it covers almost all the study area with normal to saline and alkaline soil (with ECrange = 0.82 to 6.47; pHrange = 7.41 to 8.80 and SARrange = 4.70 to 18.65). The present study thus clearly showed that the irrigation with poor quality ground water was the main cause of extensive secondary soil salinization and alkanization in the study area. The present investigation could demonstrate the soil and water quality status for characterizing the type and extent of soil and ground water degradation in the study area. This Geo-spatial mapping of the soil and ground water is in fact, a pre-requisite for formulating any practical and cost-effective resource management plan for the affected study area.
 
Date 2016-08-26T14:29:31Z
2016-08-26T14:29:31Z
2012
 
Type Thesis
 
Identifier http://krishikosh.egranth.ac.in/handle/1/73912
 
Format application/pdf
 
Publisher IARI, WATER TECHNOLOGY CENTRE INDIAN AGRICULTURAL RESEARCH INSTITUTE NEW DELHI