Performance evaluation of irrigation system using RS and GIS

摘要

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, 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 salt affected area and cropping pattern of the study area, 25% irrigation performance improve after the water course improvement.