Using RS and GIS to access crop water productivity after canal improvement.

The research study evaluated the cropping pattern by using special scientific tools like Remote Sensing and GIS technology, so that proper measurements could be taken for the sustainable agriculture and water management. Water is basic need for all living thing. Without water nobody can survive in this world. Efficient utilization of existing water is a pressing need. Due to rising population, reduction in present storage capacity and poor delivery efficiency of 30 to 40% from canal. A study to evaluate an irrigation system in the cotton-wheat zone of Pakistan, the study is made after the watercourse lining was conducted. The project will not only RS base for this field measurement also required for verification and correction. Several combinations of the ratio of signals received in different spectral bands were used for development of this index. Near Infrared and Thermal IR spectral bands proved to be most effective as this combination helped easy detection of cropping pattern of the study area, Ket word;field data, satellite images of different years.