Global field observations of tree die-off reveal hotter-drought fingerprint for Earth’s forests
Journal Article
·
· Nature Communications
- Univ. of Florida, Gainesville, FL (United States). Agronomy Dept.; OSTI
- Univ. of California, Los Angeles, CA (United States). Dept. of Geography
- Univ. of California, Merced, CA (United States). Management of Complex Systems
- Washington State Univ., Pullman, WA (United States). School of the Environment
- Weizmann Institute of Science, Rehovot (Israel). Dept. of Plant and Environmental Sciences
- Univ. Politecnica de Madrid (Spain). Sistemas y Recuros Naturales
- Universidad Michoacana de San Nicolás de Hidalgo, Morelia, Michoacán (Mexico). Instituto de Investigaciones sobre los Recursos Naturales
- Max Planck Institute for Biogeochemistry, Jena (Germany). Dept. of Biogeochemical Processes
- Univ. of Arizona, Tucson, AZ (United States). School of Natural Resources and the Environment
- Univ. of New Mexico, Albuquerque, NM (United States). Dept. of Geography and Environmental Studies
Earth’s forests face grave challenges in the Anthropocene, including hotter droughts increasingly associated with widespread forest die-off events. But despite the vital importance of forests to global ecosystem services, their fates in a warming world remain highly uncertain. Lacking is quantitative determination of commonality in climate anomalies associated with pulses of tree mortality—from published, field-documented mortality events—required for understanding the role of extreme climate events in overall global tree die-off patterns. Here we established a geo-referenced global database documenting climate-induced mortality events spanning all tree-supporting biomes and continents, from 154 peer-reviewed studies since 1970. Our analysis quantifies a global “hotter-drought fingerprint” from these tree-mortality sites—effectively a hotter and drier climate signal for tree mortality—across 675 locations encompassing 1,303 plots. Frequency of these observed mortality-year climate conditions strongly increases nonlinearly under projected warming. Our database also provides initial footing for further community-developed, quantitative, ground-based monitoring of global tree mortality.
- Research Organization:
- Columbia Univ., New York, NY (United States)
- Sponsoring Organization:
- National Science Foundation (NSF); USDOE Office of Science (SC)
- Grant/Contract Number:
- SC0022302
- OSTI ID:
- 1904244
- Journal Information:
- Nature Communications, Journal Name: Nature Communications Journal Issue: 1 Vol. 13; ISSN 2041-1723
- Publisher:
- Nature Publishing GroupCopyright Statement
- Country of Publication:
- United States
- Language:
- English
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