Impact of canal irrigation on agriculture in Halvad block of Gujarat using remote sensing and GIS technology

An investigation on canal irrigation performance assessment and monitoring of Halvad taluka in Surendranagar district of Gujarat, India using remote sensing and Geographic Information System (GIS) was carried during May, 2015 to July, 2015 at Bhaskaracharya Institute For Space Applications and Geo-Informatics (BISAG), Gandhinagar, Gujarat. The Area of Interest (AOI) covering Halvad Taluka was generated from the IRS LISSS-III digital data of 2006 and 2014 using the Halvad Taluka boundary. This data was analyzed using unsupervised and supervised classification techniques for area estimation under various land use classes like Agriculture, Wasteland, Fallow land, General Build-up, Water etc. The Global Positioning System (GPS) measurements were used to locate different-different places on raster image. Various classes spectral signature was generated for supervised classification. Using ERDAS Imagine software we have applied change detection techniques for analysing land-use and land-cover (LULC) change, urban change, etc. The results of supervised classification of IRS LISS-III digital data of 2006 and 2014 crop seasons indicated area under irrigated agricultures has increased during 2014 as compare to 2006. This is mainly because of reduction in area under waste lands and fallow lands. Due to increase in irrigation facilities area under different crops have increased. The result of this brings out the impact of irrigation on the agriculture in the Halvad Taluka.