396 Climate Management Issues
areas are the most economically feasible. In terms of species migration and
invasion, their current distribution was compared with older aerial imagery
to determine a baseline distribution (for example, from the 1970s) and now
can be monitored as species migrate northward as temperatures climb and
conditions become drier.
Case Study 2: Monitoring Rangelands and Drought
Remote sensing technology is often used in rangeland monitoring activities
for a wide variety of activities, such as:
• Inventory and classication of rangeland vegetation
• Determination of carrying capacity of rangeland plant communities
• Determination of forage and browse utilization
• Determination of range readiness
• Monitoring of erosion
• ...