Drone‐based physiological index reveals long‐term acclimation and drought stress responses in trees

• Published in: Plant, cell and environment Vol. 44; no. 11; pp. 3552 - 3570
• Main Authors: D'Odorico, Petra, Schönbeck, Leonie, Vitali, Valentina, Meusburger, Katrin, Schaub, Marcus, Ginzler, Christian, Zweifel, Roman, Velasco, Vera Marjorie Elauria, Gisler, Jonas, Gessler, Arthur, Ensminger, Ingo
• Format: Journal Article
• Language: English
• Published: Chichester, UK John Wiley & Sons, Ltd 01.11.2021; Wiley Subscription Services, Inc
• Subjects: Acclimation; Acclimatization; Botany - instrumentation; drone; Drought; drought stress; Droughts; Environmental impact; evergreen; Forests; functional traits; Growing season; irrigation; lutein; Moisture content; Original; Photochemicals; photochemistry; photoprotection; Photosynthesis; Physiological responses; Physiology; Pine trees; Pinus sylvestris; Pinus sylvestris - physiology; plant available water; PRI; radiation resistance; reflectance; Remote sensing; Seasons; Soil water; Stress response; tree physiology; Trees; Trees - physiology; UAV; Unmanned Aerial Devices; Vapor pressure; vapor pressure deficit; Water availability; water stress; xanthophyll cycle pigments; Xanthophylls; drought stress; PRI; acclimation; functional traits; photoprotection; xanthophyll cycle pigments; UAV; evergreen; drone

Monitoring early tree physiological responses to drought is key to understanding progressive impacts of drought on forests and identifying resilient species. We combined drone‐based multispectral remote sensing with measurements of tree physiology and environmental parameters over two growing season...