Remote Sensing for Detection and Monitoring of Salt Stress on Vegetation: Evaluation and Guidelines

摘要

A study was conducted over a 3 year period to investigate the utility of various remote sensing techniques for detection and monitoring of salt stress on vegetation. Predictive drift modeling was used for selecting areas which should be monitored around salt or brackish water cooling towers. Experimental vegetation plots with controlled salt mist applications were used to study the relationships between salt deposition, salt stress symptom development and detectability of the salt stress using remote sensing. Remote sensing techniques were also tested around operating cooling towers. False color infrared (FCIR) aerial photographs gave the best results of the methods tested and areas of salt stress were found to be identifiable in the imagery.