Time Series Aerial Photography Can Help Land Owners and Managers Understand Local Aspen Dynamics

A keystone species, European aspen (Populus tremula L.), in boreal forests: Ecological role, knowledge needs and mapping using remote sensing

“…Aerial images can provide detailed information on forest stands at local and landscape scales. For example, Strand et al (2012) mapped local dynamics of quaking aspen in Idaho over nearly four decades using aerial images. Stand structure was visible in the colour and infrared aerial images, but stands were difficult to delineate in older black and white images, a factor that complicated comparisons from one time period to another.…”