The Science of The Total Environment,
Journal Year:
2023,
Volume and Issue:
898, P. 165368 - 165368
Published: July 11, 2023
In
recent
years,
the
use
of
fire
as
a
means
by
which
to
manage
forest
ecosystems
has
become
more
frequent
in
Europe.
Fire
significant
impact
on
soil,
and
it
is
therefore
necessary
understand
how
controlled
burns
affect
this
invaluable
resource.
The
purpose
study
was
evaluate
main
alterations
physical-chemical
biological
properties
soil
because
high
intensity-controlled
burn
"Los
Boquerones"
area
(Villaviciosa
de
Córdoba,
Spain).
Additionally,
we
assessed
spatial
heterogeneity
different
properties.
A
grid
12
points
established
hillside
Sierra
Morena
(Córdoba).
Thermocouples
were
placed
at
each
point,
samples
collected
two
depths
(0-2
cm
2-5
cm)
before
burning,
immediately
after
burning
eight
months
later.
Soil
pH,
electrical
conductivity,
nutrient
content
and/or
availability,
among
others,
their
spatio-temporal
variations
analysed.
increased
first
centimetres
up
>2
units,
increase
maintained
following
burn.
high-intensity
had
positive
short-term
effect
some
properties,
such
availability
for
plants,
considerably
increased.
magnitude
indicators
spatially
explained
behaviour
during
burning.
also
both
direct
indirect
effects
microorganisms.
conclusion,
possible
immediate
resource
should
be
considered
holistic
management
ecosystems,
its
functionality
capacity
provide
ecosystem
services
largely
altered
these
events
function
intensity.
Diversity,
Journal Year:
2022,
Volume and Issue:
14(7), P. 520 - 520
Published: June 28, 2022
Forests
acting
as
carbon
storage
and
sequestration
play
an
essential
role
in
the
global
nutrient
cycle,
which
fungi
are
active
participants.
The
forests
cover
almost
all
regions
from
boreal,
temperate
to
subtropical
tropical
forests.
relative
proportion
of
sequestrated
forest
soil
varies
approximately
85%
terrestrial
pool
boreal
60%
50%
rainforests.
Fungi
decomposers
organic
matter
root-associated
mediators
belowground
transport
respiration
key
drivers
cycle
For
example,
saprophytic
can
degrade
release
into
soil,
whereas
symbiotic
could
form
symbiosis
with
plants,
through
plant
benefit
each
other
flow.
Given
importance
ecological
environment,
this
paper
summarizes
terms
fungal
diversity
function
ecosystems.
Agricultural and Forest Meteorology,
Journal Year:
2024,
Volume and Issue:
349, P. 109954 - 109954
Published: March 5, 2024
Although
forest
fires
are
one
of
the
main
natural
disturbance
types
in
boreal
forests,
there
is
limited
information
regarding
surface
(dominant
Northern
Europe),
and
how
different
severities
could
affect
post-fire
soil
greenhouse
gas
emissions.
The
results
our
study
show
that
fire
severity,
time
since
changes
temperature
were
factors
driving
carbon
dioxide
(CO2)
flux
(forest
floor
ecosystem
respiration)
from
burned
soils.
Approximately
two
hours
after
fire,
CO2
emissions
areas
significantly
higher
compared
to
pre-fire
conditions,
with
high-severity
had
those
low-severity
fires.
Later
(days,
months)
unburned
control
always
emission
values
areas.
In
case
methane
(CH4),
temperatures
CH4
fluxes.
Unburned
sinks
through
entire
measurement
period,
while
immediately
turned
sink
source.
For
nitrous
oxide
(N2O)
measurements,
was
only
factor
affected
N2O
Shortly
increased
both
low-
high-intensity
plots.
Two
days
C
N
content
decreased
O-horizon
within
first
5
cm
mineral
layer,
trend
visible
Samples
collected
four
months
showed
similar
total
as
before
fire.
Frontiers in Ecology and Evolution,
Journal Year:
2022,
Volume and Issue:
10
Published: Aug. 16, 2022
Wildfires
play
an
essential
role
in
the
ecology
of
boreal
forests.
In
eastern
Siberia,
fire
activity
has
been
increasing
recent
years,
challenging
livelihoods
local
communities.
Intensifying
regimes
also
increase
disturbance
pressure
on
forests,
which
currently
protect
permafrost
beneath
from
accelerated
degradation.
However,
long-term
relationships
between
changes
regime
and
forest
structure
remain
largely
unknown.
We
assess
past
fire-vegetation
feedbacks
using
sedimentary
proxy
records
Lake
Satagay,
Central
Yakutia,
covering
c.
10,800
years.
Results
macroscopic
microscopic
charcoal
analyses
indicate
high
amounts
burnt
biomass
during
Early
Holocene,
that
present-day,
low-severity
surface
place
since
4,500
years
before
present.
A
pollen-based
quantitative
reconstruction
vegetation
cover
a
terrestrial
plant
record
based
ancient
DNA
metabarcoding
suggest
pronounced
shift
toward
Late
Holocene.
Whereas
Holocene
was
characterized
by
postglacial
open
larch-birch
woodlands,
changed
modern,
mixed
larch-dominated
closed-canopy
Mid-Holocene.
propose
potential
relationship
woodlands
biomass,
as
well
mediating
effect
dense
larch
climate-driven
intensification
regimes.
Considering
anticipated
disturbances
(droughts,
insect
invasions,
wildfires),
higher
tree
mortality
may
force
modern
state
to
woodland
comparable
Such
result
positive
feedback
intensifying
wildfires.
These
new
data
improve
our
understanding
millennial-scale
their
where
population
is
already
being
confronted
with
wildfire
seasons.
Fire,
Journal Year:
2023,
Volume and Issue:
6(2), P. 67 - 67
Published: Feb. 13, 2023
Fires
are
one
of
the
most
widespread
factors
changes
in
ecosystems
boreal
forests.
The
paper
presents
results
a
study
morphological
and
physicochemical
properties
soil
organic
matter
(SOM)
Albic
Podzols
under
pine
forests
(Pinus
sylvestris
L.)
middle
taiga
zone
Siberia
(Krasnoyrsky
kray)
with
various
time
passed
after
surface
fire
(from
1
to
121
years
ago).
influence
forest
fires
early
on
chemical
includes
decrease
acidity,
content
water-soluble
compounds
carbon
nitrogen
an
increase
light
polycyclic
aromatic
hydrocarbons
(PAHs)
upper
mineral
horizons.
that
were
affected
by
more
than
forty-five
ago
close
manure
soils
according
physical
properties.
Significant
correlations
found
between
thickness
(r
=
0.75,
p
<
0.05),
moisture
0.90,
0.05)
horizons
∑PAHs
horizon
−0.71,
elapsed
(i.e.,
from
years).
index
age
pyrogenic
activity
(IPA)
calculated
as
ratio
∑
PAHs
at
is
significantly
higher
23
for
plots
«older»
(45–121
Thus,
article
conserved
changing
impact
Russia.
Frontiers in Forests and Global Change,
Journal Year:
2023,
Volume and Issue:
6
Published: March 31, 2023
The
boreal
landscape
stores
an
estimated
40%
of
the
earth's
carbon
(C)
found
in
terrestrial
vegetation
and
soils,
with
a
large
portion
collected
thick
organic
soil
layers.
These
ground
are
subject
to
substantial
removals
due
centurial
return
wildfire,
which
has
strong
impacts
on
microbial
community
nutrient
cycling,
turn
can
control
ecosystem
recovery
patterns
process
rates,
such
as
C
turnover.
Currently,
predictive
knowledge
used
assessing
fire
is
largely
focused
ecosystems
that
experience
only
superficial
burning
few
robust
observations
exist
regarding
effect
smoldering
combustion
deeper
active
layers
post-fire
activity.
This
study
provided
highly
replicated
regionally
extensive
survey
wildfire
impact
structure
(using
fatty
acid
biomarkers)
cycling
situ
ionic
resin
capsules)
across
broad
gradients
climate,
forest
properties
conditions
within
50
separate
burn
scars
additional
matched
unburnt
soils.
results
suggest
metabolic
shift
burnt
soils
heat
their
decoupling
from
aboveground
processes,
releasing
N
limitation
increasing
mobilization
N,
P,
K,
S
excess
conjunction
altered,
C-starved
reduced
root
uptake
mortality.
An
observed
climatic
over
implications
for
altered
function
future
climate
regimes
deserving
further
attention.
Plant and Soil,
Journal Year:
2022,
Volume and Issue:
485(1-2), P. 91 - 102
Published: Dec. 5, 2022
Abstract
Aims
Plant–soil
feedback
(PSF)
is
an
important
mechanism
controlling
plant
growth,
vegetation
dynamics,
and
longer-term
larger-scale
patterns
of
community
diversity.
We
know
that
between
plants
soil
biota
depends
on
several
external
factors,
such
as
nutrient
water
availability,
interactions
with
neighbouring
plants.
argue
in
the
‘real
world’,
PSF
are
not
working
isolation
but
instead
proceed
within
a
complex
context
multiple
interacting
factors.
Fire
one
those
factors
which
could
greatly
alter
by
re-setting
or
re-directing
plant-soil
interactions.
Methods
reviewed
key
literature
effects
fire
physicochemical
properties
depth,
to
generate
predictions
PSF.
Results
highlight
has
strong
potential
directly
indirectly
affect
strength
To
what
extent
this
influences
trajectories
characteristics
ecosystem
type.
Here,
we
conceptualized
these
biota,
then
discuss
main
pathways
through
should
Conclusions
think
processes
be
nullified
under
after
fire.
Average
neutral
responses
expected
more
common
short-term
timeframe
required
for
major
microbial
players
regain
their
pre-fire
abundances
conclude
providing
directions
future
research
possible
methods
study
both
field
controlled
conditions.