Water logging and drainage Assessment in Ravi-Tawi irrigation command (J&K) using remote sensing approach |
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Authors: | V C Goyal Sanjay K Jain Navneet Pareek |
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Institution: | (1) UET Taxila and Mona Reclamation Experimental Project, WAPDA, Bhalwal, Pakistan;(2) Faculty of Civil and Environmental Engineering, UET Taxila, Rawalpindi, Pakistan;(3) Alterra-ILRI, P.O. Box 47, 6700 AA Wageningen, The Netherlands; |
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Abstract: | Water logging is one of the major land degradation processes that restricts the economic and efficient utilisation of soil
and land resources in command areas. Since independence, various irrigation schemes, for providing water for agriculture and
drinking have been taken up by Central and State agencies in India. In most of these schemes very little efforts have been
made for proper drainage. Obstruction of natural drainage by way of construction of roads, railways, aerodrome, various structures,
etc., causes the ponding of monsoon runoff on the upstream of the structures.
Periodic monitoring of command areas helps in analysing the extent of water logging, and should help in taking suitable remedial
measures. Remote sensing and GIS are powerful tools, which could be effectively used to study the dynamic behaviour of waterlogged
areas. In this study, waterlogged and salt-affected areas have been estimated in the command area of Ravi-Tawi Irrigation
Complex in Jammu region. About 14% of the total command area is water logged/ salt-affected. Being a new project, this area
is likely to grow in future when the project runs with its installed capacity, and as the distributaries expand in the command
area. Plausible causes of water logging have been discussed, and remedial measures suggested for reclaiming operations. |
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