Environmental Studies and Forestry

Global field observations of tree die-off reveal hotter-drought fingerprint for Earth's forests

W. M. Hammond, A. P. Williams, et al.

This study, conducted by William M. Hammond and colleagues, reveals a geo-referenced global database documenting climate-induced tree mortality events. The analysis uncovers a worrying trend: as the climate gets hotter and drier, tree mortality events are on the rise. This groundbreaking research lays the groundwork for community-driven global monitoring of tree mortality in response to climate change.

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Abstract

This study establishes a geo-referenced global database documenting climate-induced tree mortality events from 154 peer-reviewed studies since 1970. Analysis reveals a global "hotter-drought fingerprint" across 675 locations encompassing 1,303 plots, indicating a hotter and drier climate signal for tree mortality. The frequency of these mortality-year climate conditions increases nonlinearly under projected warming. The database provides a foundation for future community-developed monitoring of global tree mortality.

Publisher

Nature Communications

Published On

Apr 05, 2022

Authors

William M. Hammond, A. Park Williams, John T. Abatzoglou, Henry D. Adams, Tamir Klein, Rosana López, Cuauhtémoc Sáenz-Romero, Henrik Hartmann, David D. Breshears, Craig D. Allen

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