Drivers and Impacts of the Record-Breaking 2023 Wildfire Season in Canada
Nature Communications,
Journal Year:
2024,
Volume and Issue:
15(1)
Published: Aug. 20, 2024
Abstract
The
2023
wildfire
season
in
Canada
was
unprecedented
its
scale
and
intensity,
spanning
from
mid-April
to
late
October
across
much
of
the
forested
regions
Canada.
Here,
we
summarize
main
causes
impacts
this
exceptional
season.
record-breaking
total
area
burned
(~15
Mha)
can
be
attributed
several
environmental
factors
that
converged
early
season:
snowmelt,
multiannual
drought
conditions
western
Canada,
rapid
transition
eastern
Anthropogenic
climate
change
enabled
sustained
extreme
fire
weather
conditions,
as
mean
May–October
temperature
over
2.2
°C
warmer
than
1991–2020
average.
were
profound
with
more
200
communities
evacuated,
millions
exposed
hazardous
air
quality
smoke,
unmatched
demands
on
fire-fighting
resources.
not
only
set
new
records,
but
highlights
increasing
challenges
posed
by
wildfires
Language: Английский
What Are the Limits to the Growth of Boreal Fires?
Global Change Biology,
Journal Year:
2025,
Volume and Issue:
31(3)
Published: March 1, 2025
ABSTRACT
Boreal
forest
regions,
including
East
Siberia,
have
experienced
elevated
fire
activity
in
recent
years,
leading
to
record‐breaking
greenhouse
gas
emissions
and
severe
air
pollution.
However,
our
understanding
of
the
factors
that
eventually
halt
spread
thus
limit
growth
remains
incomplete,
hindering
ability
model
their
dynamics
predict
impacts.
We
investigated
locations
timing
2.2
million
stops—defined
as
300
m
unburned
pixels
along
perimeters—across
vast
Siberian
taiga.
Fire
stops
were
retrieved
from
remote
sensing
data
covering
over
27,000
individual
fires
collectively
burned
80
Mha
between
2012
2022.
Several
geospatial
datasets,
hourly
weather
landscape
variables,
used
identify
contributing
stops.
Our
analysis
attributed
87%
all
a
statistically
significant
(
p
<
0.01)
change
one
or
more
these
drivers,
with
fire‐weather
drivers
limiting
time
constraining
it
across
space.
found
clear
regional
temporal
variations
importance
drivers.
For
instance,
drivers—such
less
flammable
land
cover
presence
roads—were
key
constraints
on
southeastern
where
is
populated
fragmented.
In
contrast,
was
primary
constraint
northern
Additionally,
central
Yakutia,
major
hotspot
fuel
limitations
previous
increasingly
restricted
spread.
The
methodology
we
present
adaptable
other
biomes
can
be
applied
globally,
providing
framework
for
future
attribution
studies
global
limitations.
northeast
increasing
droughts
heatwaves,
could
potentially
grow
even
larger
future,
implications
carbon
cycle
climate.
Language: Английский
Fuel constraints, not fire weather conditions, limit fire behavior in reburned boreal forests
Agricultural and Forest Meteorology,
Journal Year:
2024,
Volume and Issue:
358, P. 110216 - 110216
Published: Sept. 11, 2024
Language: Английский
Immediate Response of Carabids to Small-Scale Wildfire Across a Healthy-Edge-Burnt Gradient in Young Managed Coniferous Forest in Central Europe
Fire,
Journal Year:
2024,
Volume and Issue:
7(12), P. 436 - 436
Published: Nov. 26, 2024
Wildfire
is
a
type
of
disturbance
that
plays
critical
role
in
affecting
forest
ecosystems.
Wildfires
also
have
significant
effect
on
shaping
arthropods
communities.
Carabids
(family
Carabidae)
are
often
used
as
bioindicator
group
altered
biocenoses.
Methods:
For
carabid
sampling,
pitfall
traps
were
three
habitats,
healthy-edge-burnt,
fifteen
days
after
the
suppression
wildfire.
Seven
evenly
placed
each
transect.
In
total,
twenty-one
for
study.
Aim
study:
(i)
evaluate
overall
diversity
carabids,
(ii)
sex
change
and
distribution
within
studied
(iii)
dynamics
pyrophilous
carabids.
Results:
1051
individuals
42
species
recorded.
The
total
number
was
higher
edge
burnt
habitats
differed
from
healthy
habitat.
abundance
carabids
did
not
differ
significantly
across
habitats.
However,
habitat
exhibited
both
lower
numbers
abundance.
Communities,
richness,
indices
similar
while
had
indices,
more
homogenized
ratio
nearly
equal,
with
females
comprising
519
(49.4%)
males
532
(50.6%),
showing
nonsignificant
differences
among
study
Among
nine
most
dominant
species,
general
trend
female
dominance
observed.
Many
showed
different
patterns
relation
to
Pyrophilous
accounted
majority
individuals,
55%
all
habitat,
predominantly
represented
by
Pterostichus
quadrifoveolatus.
rare
Sericoda
quadripunctata
observed
infrequently
only
twenty-three
These
two
highly
correlated,
potentially
indicating
their
near-habitat
requirements.
Males
colonize
area
earliest
post-fire
period.
Conclusions:
immediate
response
wildfire
significant,
primarily
influencing
richness
While
affect
distribution,
it
shaped
interspecies
Language: Английский