Canopy temperature from an Unmanned Aerial Vehicle as an indicator of tree stress associated with red band needle blight severity
Magdalena Smigaj, Rachel Gaulton, Juan C Suarez, Stuart L Barr
FOREST ECOLOGY AND MANAGEMENT | ELSEVIER | Published : 2019
Monoculture plantation woodlands are particularly vulnerable to disturbance events as species uniformity makes such stands highly susceptible to pests and diseases. Red band needle blight (caused by the fungus Dothistroma septosporum) is a disease which has a particularly significant economic impact on pine plantation forests worldwide, affecting diameter and height growth. However, monitoring its spread and intensity is complicated by the fact that the diseased trees are often only visible from aircraft in the advanced stages of the epidemic. Remote sensing could potentially aid in the detection of infected stands and in monitoring disease development and spread. Thermography is one of the ..View full abstract
Awarded by Natural Environment Research Council (NERC)
Awarded by Royal Society Research grant
Awarded by NERC, United Kingdom grant
The authors want to thank Mr Martin Robertson, Dr Elias F. Berra and Dr Maria V. Peppa (Newcastle University) for their help during the fieldwork, Dr Sean Wilkinson (Newcastle University) for lending the quadcopter, as well as Mr David Dick and Dr Paul Sallis (Newcastle University) for their help in modifying it. This work was supported by the Natural Environment Research Council (NERC) studentship award (reference number: 1368552) and a Douglas Bomford Trust grant. The thermal camera was purchased through Royal Society Research grant (RG130211). Airborne LiDAR data was provided through NERC, United Kingdom grant (GB 14-04).