ALTERNATIVE CROP PLANS FOR MULA COMMAND AREA USING REMOTE SENSING AND GIS TECHNIQUES

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Date
2001
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Mahatma Phule Krishi Vidyapeeth, Rahuri.
Abstract
Water management in India, both in its conservation and control aspects, has significantly benefited from the input of Remote Sensing Satellites. Remote Sensing and GIS have become effective tools for number of applications related to water resources and their management particularly in the areas of water resources assessment, groundwater targeting, flood management, reservoir capacity survey, assessment and monitoring of environmental impact of water resources, project and water quality mapping, etc. The command area of the medium and major irrigation projects normally range from 2000 ha to 100000 ha respectively in the country. The soils in the command area are heterogeneous and several crops are grown and irrigated on these soils. The groundwater potential also often varies. The crops are grown often during two seasons and some times in three seasons. The water is distributed with the help of network of canal of varying capacities. This makes management of land and water resources in the command area complex. Remote Sensing (RS) and GIS techniques have the capabilities to consider these complex issues enchanted in the management of command area. Keeping in mind the potentials of RS and GIS for agricultural water management, the study with the objectives, to generate land use/land cover map of the Mula Command Area, to delineate the canal network of Mula Command Area, to generate soil and geomorphological maps, to integrate the various maps for the generation of alternative crop plans using SWAB simulation model was undertaken. The study area chosen for this purpose was Mula Irrigation Project which is situated at Baragaon Nandur in Rahuri Taluka of Ahmednagar District (MS). The facilities & expertise of Remote Sensing and GIS were made available from RRSSC, Nagpur. The satellite data was obtained RRSSC, Nagpur. The satellite data of IRS-1C/1D satellite, LISS3 for the months of Oct. 97, Jan. 98 and Mar.. 98, of path 96 and row 59 were used for generating various thematic/derived maps and action plans. The Survey of India (SOI) toposheets: 47 1/11,14,15,16 and 47M/2,3 were used for base map preparation. Soil map was obtained from NBSS & LUP, Nagpur. Necessary index maps and canal water release data of 1997-98 were obtained from CADA, Ahmednagar and its Divisional offices. The climatalogical data was obtained from the observatory of B Block of Directors of farms, MPKV Rahuri. In addition, other required information was collected from various Government Departments and from the literature. The base maps such as command area boundary map, canal network in command area map and unitwise command area map were generated by using the SOI toposheets with the help of different collateral maps. The thematic maps such as Land use/land cover, soil and hydrogeomorphology maps were prepared by loading the satellite data, rectifying the data, adding some extra channels, and visually interpreting the images. The collateral information in the form of data or maps was also used. The individual statistics of command unit map, land use/land cover map, soil map, hydrogeomorphology map have been generated. The integration of different maps has been carried out for generating the statistics required to run the developed model.
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