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- Title
Geoinformatics based Waterlogged Area Delineation for Water Chestnut and Aquaculture Cultivation in Eastern India and its Economics.
- Authors
NAYAK, A. K.; CHOWDHURY, S. ROY; BRAHMANAND, P. S.; MOHANTY, R. K.; CHAKRABORTY, S.; JENA, S. K.; MANIKANDAN, N.; AMBAST, S. K.
- Abstract
Adoption of conventional agriculture in waterlogged areas always remains a challenge mainly due to changed physical, chemical and microbiological properties of waterlogged soils. Even with such limitation, cultivation of economically important aquatic food crops like water chestnut/makhana and their integration with aquaculture is a lucrative option in improving the rural economy in waterlogged areas. In this study, geo-referenced LISS III data (1:50000 scale) was used to delineate the waterlogged areas to make such interventions with aquaculture in the coastal and its adjoining areas of Odisha. The existing impact of water chestnut on production performance of catfish appeared promising. Case studies show that these interventions resulted in a yield of 11 t ha-1 of water chestnut and 0.47 t ha-1 of catfish. The gross water productivity of aquaculture alone was ₹7.90 m-3 which could be enhanced further to ₹16.30 m-3 through integrated cultivation of water chestnut with catfish. Identification and delineation of suitable waterlogged areas for integrated water chestnut and fish cultivation using remote sensing and GIS tools would help in upscaling this cultivation system so as to improve the socio-economic livelihood of the farming community.
- Subjects
GEOINFORMATICS; WATERLOGGING (Soils); WATER chestnuts; AQUACULTURE; PLANT nutrients
- Publication
Journal of the Indian Society of Coastal Agricultural Research, 2020, Vol 38, Issue 1, p11
- ISSN
0972-1584
- Publication type
Article