Assessment of defoliation during a pine sawfly outbreak: Calibration of airborne laser scanning data with hemispherical photography

During an outbreak of the pine sawfly in eastern Norway it was demonstrated that small-footprint airborne laser scanning could detect defoliation, measured as changes in leaf area index (LAI). Gap fraction derived from laser scanning data was strongly and positively correlated to ground-based optica...

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Veröffentlicht in:	Forest ecology and management 2007-10, Vol.250 (1), p.9-16
Hauptverfasser:	Hanssen, Kjersti Holt, Solberg, Svein
Format:	Artikel
Sprache:	eng
Schlagworte:	Defoliation Insect attack LAI LIDAR Optical LAI determination Pine sawfly
Online-Zugang:	Volltext
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