Remote Sensing of Phragmites australis Invasion in Delaware Tidal Marsh Zones: Issues to Consider

摘要

Phragmites australis, the common reed, has been widespread in tidal marshes of the eastern coast of North America during the last 50 years [1-3]. Its ability to supplant other wetland vegetation and decrease wetland biodiversity has attracted considerable research attention in the US. It is estimated that about 10-15 percent of Delaware's coastal wetlands are now invaded with tall, dense stands of P. australis [4,5]. Monitoring potential impacts of Phragmites invasion on aquatic species such as the blue crab population in Blackbird Creek watershed, Delaware can greatly help understand the changing ecosystems in Delaware's coastal environment. This arduous and complex task can be accomplished utilizing remote sensing technology.