International Journal of Wildland Fire,
Год журнала:
2024,
Номер
33(6)
Опубликована: Июнь 13, 2024
Background
Understanding
the
influence
of
fires
on
terrestrial
carbon
stocks
is
important
for
informing
global
climate
models
and
underpinning
land
management-based
markets.
Aims
To
quantify
biomass
in
south-western
Australia’s
Great
Western
Woodlands
–
world’s
largest
extant
Mediterranean-climate
woodland
with
time-since-fire
prior
fire
interval.
Methods
Plot-based
measurement
live
dead
tree
shrub
size,
woody
debris
volume
litter
mass
across
a
~400-year
chronosequence
to
calculate
carbon.
Key
results
Biomass
increased
time-since-fire,
reaching
>65
Mg
C
ha−1,
although
rate
increase
declined
mature
woodlands.
decreased
after
these
obligate-seeder
woodlands,
while
longer
interval
buffered
fluxes
through
retained
large
standing
trees
fallen
debris.
Conclusions
The
current
age
class
distribution
~95,000
km2
eucalypt
woodlands
region
may
support
~0.453
Pg
C.
Further
refinement
estimates
explicitly
considering
variation
type
climate,
continuous
soil
are
required
underpin
methodology.
Implications
would
be
maximised
by
reducing
extent
bushfires
impacting
focussing
existing
stands
that
greatest
stocks.
Nature Communications,
Год журнала:
2025,
Номер
16(1)
Опубликована: Янв. 30, 2025
Fires
alter
the
stability
of
organic
matter
and
promote
soil
erosion
which
threatens
fundamental
coupling
biogeochemical
cycles.
Yet,
how
biogeochemistry
its
environmental
drivers
respond
to
fire
remain
virtually
unknown
globally.
Here,
we
integrate
experimental
observations
random
forest
model,
reveal
significant
divergence
in
responses
attributes
fire,
including
carbon
(C),
nitrogen
(N),
phosphorus
(P)
contents
worldwide.
Fire
generally
decreases
C,
has
non-significant
impacts
on
total
N,
while
it
increases
inorganic
N
P,
with
some
effects
persisting
for
decades.
The
are
most
strongly
negative
cold
climates,
conifer
forests,
under
wildfires
high
intensity
frequency.
Our
work
provides
evidence
that
decouples
globally
helps
identify
high-priority
ecosystems
where
critical
components
especially
unbalanced
by
is
management
a
world
subjected
more
severe,
recurrent,
further-reaching
wildfires.
Environmental Science & Technology,
Год журнала:
2025,
Номер
unknown
Опубликована: Фев. 11, 2025
Promoting
the
formation
and
accumulation
of
soil
carbon
(C)
is
one
natural
solutions
to
address
climate
change,
but
frequent
wildfires
increase
its
uncertainty
challenge.
This
two-year
study
deciphered
driving
pathways
seasonal
vertical
patterns
in
a
C
pool
following
wildfire
from
microbial
perspective.
Results
showed
that
total
organic
concentration
stock
postfire
decreased
by
29.9
17.5%
on
average
compared
with
unburned
control,
respectively,
whereas
allocations
labile
increased
25.1-45.7%.
Fire-induced
alterations
fractions
were
complicated
due
their
significant
seasonality
respective
sensitivities.
Nonetheless,
we
emphasized
life-history
traits
decisive
mediators
variations
positive
linkages
existed
between
r-selected
communities.
Fire
stimulated
lower
bacterial
fungal
copiotroph/oligotroph
ratios
higher
ribosomal
ribonucleic
acid
operon
copy
number,
shifting
microbes
K-
r-strategists.
From
integrated
management
indices,
fire
can
be
concluded
reduce
stability
accelerate
cycling,
whether
recaptured
prevalence
K-strategist
over
time
will
modify
processes
remains
unknown.
provided
stepping
stone
for
future
efforts
accurate
predictions
reasonable
management.
Advances in environmental engineering and green technologies book series,
Год журнала:
2025,
Номер
unknown, С. 201 - 228
Опубликована: Фев. 28, 2025
The
climate
crisis
poses
a
substantial
risk
to
achieving
global
food
security
and
sustainability.
This
chapter
presents
an
analysis
of
the
current
level
knowledge
regarding
agroforestry's
ability
promote
simultaneously
resilience,
availability,
eco-friendly
land
use.
Agroforestry
systems
(AFS)
are
recognized
as
potent
carbon
(C)
sinks,
effectively
reducing
atmospheric
dioxide
(CO2)
levels.
It
is
estimated
that
trees
in
AFS
can
sequester
0.3-24
tC
ha-1
yr-1.
AFS,
which
occupy
about
1
billion
ha
worldwide,
have
potential
remove
more
than
10GtC
yr-1
from
atmosphere
if
fully
optimized.
C
sequestration
benefits
be
monetized
by
farmers,
providing
supplementary
income
source
through
credit
market.
In
addition
sequestration,
provide
numerous
co-benefits
such
food,
biodiversity
conservation,
soil
erosion
control,
water
cycling.
key
strategy
for
counteracting
excessive
emissions.
Abstract
Forest
fires
produce
large
volumes
of
pollutants
in
the
atmospheric
air.
Fires
contribute
significantly
to
greenhouse
gas
emissions
worldwide
apart
from
industrial
and
traffic
pollutants.
The
study
reports
results
research
on
effect
gaseous
substances
burning
forest
combustibles
air
quality
deposition
soil.
It
was
determined
a
significant
excess
smoke
such
as
carbon
monoxide
(3570
mg/m
3
),
nitrogen
oxide
dioxide
(40
60
)
saturated
hydrocarbons
–
methane,
ethane,
propane,
butane,
pentane,
hexane,
heptane,
octane,
nonane,
decane,
dodecane,
tridecane,
tetradecane,
pentadecane,
hexadecane,
heptadecane,
octadecane
nonadecane.
obtained
evidence
increased
concentrations
pollutants,
including
climate-active
They
can
affect
negatively
both
climate
ecological
state
soils.
A
negative
products
combustion
soil
(
Haplic
Chernozem
by
determined,
which
caused
changes
properties.
reliably
established
that
enzymatic
activity
decreased
under
influence
fire
during
min.
Catalase
appeared
be
most
sensitive
indicator.
catalase
25%
compared
control
values.
Peroxidase
15%,
urease
20%
phosphatase
16%.
pH
changed
7.8
6.3
after
exposure
smoke.
Soil
microbiota
also
adversely
affected
High
sensitivity
recorded
for
microscopic
fungi.
Their
abundances
26%–87%
10–60
min
exposure.
Bacteria
were
found
more
resistant
toxic
(28%–33%
decrease
abundance).
Therefore,
considered
one
factors
Graphical
Forests,
Год журнала:
2025,
Номер
16(4), С. 592 - 592
Опубликована: Март 28, 2025
At
present,
remote
sensing
serves
as
a
key
approach
to
track
ecological
recovery
after
fires.
However,
systematic
and
quantitative
research
on
the
progress
of
post-fire
remains
insufficient.
This
study
presents
first
global
bibliometric
analysis
(1994–2024),
analyzing
1155
Web
Science
publications
using
CiteSpace
reveal
critical
trends
gaps.
The
findings
include
following:
As
multi-sensor
big
data
technologies
evolve,
focus
is
increasingly
pivoting
toward
interdisciplinary,
multi-scale,
intelligent
methodologies.
Since
2020,
AI-driven
such
machine
learning
have
become
hotspots
continue
grow.
In
future,
more
extensive
time-series
monitoring,
holistic
evaluations
under
compound
disturbances,
enhanced
fire
management
strategies
will
be
required
addressing
climate
change
challenge
sustainability.
USA,
Canada,
China,
multiple
European
nations
work
jointly
ecology
technology
development,
but
Africa,
high
wildfire-incidence
area,
currently
lacks
appropriate
local
research.
Remote
environment
forests
maintain
pivotal
role
in
scholarly
impact
information
exchange.
redefines
nexus
urgency
social
justice,
demanding
inclusive
innovation
address
climate-driven
regimes.
Forests,
Год журнала:
2025,
Номер
16(4), С. 685 - 685
Опубликована: Апрель 15, 2025
Pyrogenic
carbon
(PyC)
is
generated
from
the
incomplete
combustion
of
biomass
and
fossil
fuels.
highly
stable
often
referred
to
as
a
missing
sink.
It
plays
crucial
role
in
global
cycling
climate
change
research.
We
analyzed
storage
PyC
uncharred
biological
organic
(BOC)
within
woody
debris
(WD)
charcoal
layer,
well
properties
PyC,
across
four
forest
types
cold
temperate
coniferous
Greater
Khingan
Mountains.
WD
appears
charred,
blackened
material,
while
layer
was
extracted
through
chemical
oxidation
using
HF/HCl
treatment.
Our
methodology
included
particle
size
separation
dry
sieving,
followed
by
analysis
fractions
(>2
mm,
2–1
1–0.5
mm
<0.5
mm)
for
elemental
composition,
composition
DRIFT.
With
respect
WD,
ranged
0.040
0.179
Mg·ha−1,
whereas
BOC
3.1
16.8
Mg·ha−1.
In
7.9
44.3
3.8
11.6
dominated
(>99%)
on
above-ground
each
type.
The
DRIFT
confirmed
that
coarse
fraction
contain
more
polymeric
aromatic
structures,
most
likely
indicated
presence
benzene
carboxylic
compounds
(1710
cm−1),
which
may
originate
charred
plant
material.
research
aims
enhance
understanding
retention
effects
recalcitrant
forest,
thereby
providing
new
insights
into
impact
fire
disturbances
ecosystems.
