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Abstract:
From the 21st to the 23rd June 2017, the Herrenhausen castle in Hannover/Germany hosted a diverse and large crowd with more
than 70 tree physiologists, forest ecologists, forest inventory
experts, remote-sensing scientists, and vegetation modelers. Participants
from six continents and from more than 20 countries
gathered to discuss how to improve the scientific determination of
global-scale patterns, drivers, and trends of a threatening phenomenon:
the apparent emergence of recent widespread tree
mortality events in diverse forests around the world.
Continuing the theme of a workshop held at the Max-Planck
Institute for Biogeochemistry in Jena (Germany) in 2014 (Hartmann
et al., 2015), the Hanover meeting intended to develop
approaches, tools and collaborative actions to accelerate progress in
addressing regional patterns and trends of tree mortality (Williams
et al., 2013). Over the last decade climate change related tree
mortality events have been increasingly reported around the globe
(van Mantgem et al., 2009; Carnicer et al., 2011; Peng et al., 2011;
Brienen et al., 2015), but to what degree this is a global trend,
amplifying under increasing climate change, remains uncertain.
