10:56 p.m.
Dear IUFRO Meliaceae E-list:
IUFRO Spotlight #50 may be of interest. Other Spotlights can be found at:
http://www.iufro.org/media/iufro-spotlights/
Regards,
Sheila Ward
---------- Forwarded message ----------
From: IUFRO Headquarters <office(a)iufro.org>
Date: Fri, Aug 18, 2017 at 2:46 AM
Subject: IUFRO Anniversary Congress Spotlight #50: Filling in knowledge
gaps about natural disturbances and their interactions in
To: Dear IUFRO Officeholder <mahoganyforthefuture(a)gmail.com>
[image: IUFRO Spotlight]
IUFRO Anniversary Congress Spotlight #50: Filling in knowledge gaps about
natural disturbances and their interactions in mountain forests
*The 125th Anniversary Congress on 18-22 September 2017 in Freiburg,
Germany, will offer a wide selection of scientific sessions highlighting
innovative research and interdisciplinary research approaches of relevance
to forests, and focus on the transfer of scientific knowledge on critical
global forest-related challenges to national and international political
agendas. In a series of "Congress Spotlight" articles individual sessions
shall be showcased to give a foretaste of the richness and scope of
research findings that will be presented at the Congress. Keep updated at:
http://iufro2017.com/ <http://iufro2017.com/>*
*Filling in knowledge gaps about natural disturbances and their
interactions in mountain forests*
PDF for download
<http://www.iufro.org/download/file/27088/6523/anniversary-congress-spotlight50-mountain-forests-th5_pdf/>
<http://www.iufro.org/index.php?eID=tx_cms_showpic&file=18502&md5=833003b578f831eaa294c3d243c0fe7ec180f72f¶meters%5B0%5D=YTo0OntzOjU6IndpZHRoIjtzOjQ6IjgwMG0iO3M6NjoiaGVpZ2h0IjtzOjQ6IjYw¶meters%5B1%5D=MG0iO3M6NzoiYm9keVRhZyI7czoyMjoiPGJvZHkgYmdjb2xvcj0iYmxhY2siPiI7¶meters%5B2%5D=czo0OiJ3cmFwIjtzOjM3OiI8YSBocmVmPSJqYXZhc2NyaXB0OmNsb3NlKCk7Ij4g¶meters%5B3%5D=fCA8L2E%2BIjt9>
*Forest fire in protection forest. (Photo U. Wasem/WSL)*
In mountainous terrain they are called protection forests – forests that
protect human settlements and infrastructure against natural disturbances
such as rockfall, snow avalanche and shallow landslides.
Natural disturbances are becoming more and more important drivers in many
mountain chains worldwide, mainly because of past land-use legacies. But
also, under climate change, the incidence of some natural disturbances is
increasing.
These disturbances and their interactions can threaten human life and
property and can compromise the protection function of mountain forests.
"Certainly we have learned a fair amount in terms of understanding and
quantifying protection functions and disturbance interactions, but
knowledge gaps remain," said Dr. Peter Bebi of WSL-Institute for Snow and
Avalanche Research SLF, Davos, Switzerland.
Dr. Bebi, who is coordinating a session entitled: *Natural hazards and
disturbance interactions in mountain forests* at the IUFRO 125th
Anniversary in Freiburg in September, said some of the more important gaps
are related to management interventions associated with natural
disturbances such as windthrow, fire or beetle outbreaks.
"These can dramatically and abruptly change forest structure and function,
individually or through their interactions," he said. "It is crucial to
better understand how disturbances interact and how these interactions
affect gravitational natural hazards in different forest types.
"At this point," he continued, "we actually have little experience related
to interactions between gravitational natural hazards and other natural
disturbances in forests and related cascading processes."
As an example of interactions, he notes that a gravitational natural hazard
like an avalanche will leave a track down a mountainside. That avalanche
track may interact with another type of natural disturbance such as a
wildfire, by acting as a firebreak and retarding the fire's spread. But
with climate change, wildfires are increasing, so a better understanding of
how these two disturbances – as well as other types of gravitational and
non-gravitational disturbances – interact is critical to good management.
He anticipates his session will deal with four main points of discussion:
- The effect of different forest structural characteristics (including
different development stages, tree species composition and terrain
roughness) on natural hazard processes and how these characteristics change
over time;
- Ways and means to better quantify and account for the effect of such
forest characteristics;
- How the forest characteristics that are responsible for providing
protection function are affected by disturbances and their interactions; and
- The management implications that can be deduced from recent findings
on natural hazard processes in forested terrain and from expected changes
in forest structures and disturbance regimes in mountain forests.
"The future management of mountain forest ecosystems has to take into
account the important, and potentially increasing, influence of natural
disturbances," Dr. Bebi said. "It is not possible and, from an ecological
perspective, also not desirable to impede these natural disturbances.
However, where the protection of forests against natural hazards is
threatened by disturbances, management may focus on reducing risks and
increasing the resilience of these forests.
"This can be achieved by disturbance management that allows forests to
adapt to future environmental conditions and by counteracting the growing
biomass and reduced fragmentation," he said.
As examples of important mitigation measures, he suggested increasing
terrain roughness and resilience after natural disturbances by the
fostering of advance regeneration in combination with remaining dead woody
debris and setting up forest fire management plans in areas that have
protection forests where fires have not occurred for a long time but will
be more likely to happen in the future.
*________________________________*
*The September 18-22 Congress in Freiburg will celebrate IUFRO's 125th
anniversary. Founded in 1892 in Eberswalde Germany, IUFRO has grown to
unite more than 15,000 scientists (who cooperate in IUFRO on a voluntary
basis) in almost 700 member organizations in more than 120 countries.IUFRO
promotes global cooperation in forest-related research and enhances the
understanding of the ecological, economic and social aspects of forests and
trees. It disseminates scientific knowledge to stakeholders and
decision-makers and contributes to forest policy and on-the-ground forest
management.About 2000 scientists from 89 countries are expected to attend
the Congress. The Forest Landowner Research session in Freiburg will be one
of 172 scientific sessions that will cover a wide array of topics dealing
with various aspects of forest research.See you at the IUFRO 125th
Anniversary Congress in Freiburg, Germany!Look out for #IUFRO2017
<https://twitter.com/hashtag/iufro2017?f=tweets&vertical=default&src=hash>
on Twitter and @iufro2017 <https://www.facebook.com/iufro2017> on Facebook!*
*________________________________*
The International Union of Forest Research Organizations (IUFRO) is the
only worldwide organization devoted to forest research and related
sciences. Its members are research institutions, universities, and
individual scientists as well as decision-making authorities and other
stakeholders with a focus on forests and trees.
Visit: http://www.iufro.org/
*________________________________*
*IUFRO 125th Anniversary Congress Spotlight #50, published in August 2017by
IUFRO Headquarters, Vienna, Austria.Available for download at:
**http://www.iufro.org/media/iufro-spotlights/
<http://www.iufro.org/media/iufro-spotlights/>*
*Contact the editor at office(at)iufro.org <office(a)iufro.org> or visit
http://www.iufro.org/ <http://www.iufro.org/index.php?id=104>*
If you do not wish to receive *IUFRO Spotlight* publications, please email
us at: office(at)iufro.org <office(a)iufro.org>
*Imprint: http://www.iufro.org/legal/#c18944
<http://www.iufro.org/legal/#c18944>*
