Soil Aggregation, Aggregate Stability, and Associated Soil Organic Carbon in Huron Mountains Forests, Michigan, USA
Forests,
Год журнала:
2025,
Номер
16(2), С. 219 - 219
Опубликована: Янв. 24, 2025
Soil
organic
carbon
(SOC)
plays
a
critical
role
in
regulating
the
global
(C)
cycle,
with
forest
soils
serving
as
significant
C
sinks.
aggregate
stability
and
distribution
of
SOC
different
fractions
would
be
affected
by
types.
In
this
study,
we
investigate
dynamics
within
soil
across
three
main
types
Huron
Mountains,
Michigan,
USA:
white
birch–eastern
hemlock
mixed
forest,
eastern-hemlock-dominated
sugar
maple
forest.
We
hypothesize
that
variations
species
composition
depth
influence
storage
through
mechanisms
such
root
interactions,
microbial
activity,
structure
development.
samples
were
collected
from
intervals
(0–20
cm,
20–40
40–60
cm)
analyzed
for
size
content.
The
results
showed
stocks
differ
significantly
types,
exhibiting
highest
proportion
large
aggregates
(>1.0
mm),
which
contribute
to
more
stable
structures.
This
type
also
had
total
mass
mean
weight
diameter,
indicating
enhanced
stability.
contrast,
displayed
greater
smaller
lower
macroaggregate-to-microaggregate
ratio,
suggesting
fewer
soils.
closely
linked
size,
macroaggregates
containing
SOC.
These
differences
can
attributed
several
underlying
mechanisms,
including
plant
physical
properties
soil.
Forests
diverse
compositions,
tend
support
complex
systems
communities,
leading
improved
aggregation
storage.
Additionally,
management
practices
selective
thinning
mixed-species
planting
these
processes
enhancing
structure,
increasing
biomass,
promoting
health.
interactions
play
crucial
sequestration
improving
Our
findings
emphasized
importance
influencing
stability,
offering
insights
into
study
provided
reference
deeper
understanding
potential
ecosystems
supports
development
sustainable
strategies
mitigate
climate
change.
Язык: Английский
Influence of Thinning on Carbon Balance in Natural Regeneration of Pinus pinaster in Portugal
Land,
Год журнала:
2025,
Номер
14(3), С. 493 - 493
Опубликована: Фев. 27, 2025
The
maritime
pine
(Pinus
pinaster)
is
the
main
conifer
species
in
Portugal,
occurring
mainly
central
and
northern
regions
of
country.
In
addition
to
its
environmental
significance,
it
plays
an
important
socio-economic
role,
supported
by
a
robust
forest
sector.
face
climate
change
driven
release
CO2
into
atmosphere,
forests
play
essential
role
mitigating
these
changes
storing
large
amounts
carbon
their
biomass.
This
study
assesses
impact
management,
focusing
on
thinning,
accumulation
naturally
regenerating
municipality
Boticas,
Portugal
compares
scenarios
with
without
intervention.
To
simulate
growth
scenarios,
Modispinaster
software
used,
through
mathematical
models
adjusted
for
input
initial
field
data,
generates
evolution
regarding
biomass
accumulation.
Additionally,
allows
visualization
forest’s
dendrometric
characteristics
throughout
cycle,
enabling
creation
balance
analysis
across
multiple
scenarios.
results
demonstrate
that
management
based
thinning
increases
retention,
reducing
early
mortality
promoting
larger
diameter
trees.
Although
natural
initially
accumulate
more
carbon,
reduction
competition
managed
greater
from
24th
year
onwards,
reaching
178
tons
at
end
contrast
143
unmanaged
areas.
result
(natural)
was
negative
(−18
tons),
while
forest,
positive
(54
tons).
supports
thesis
although
intense
less
frequent
than
events,
effective
absence
interventions.
Thinned
optimize
Pinus
pinaster,
improving
long-term
retention
mortality.
Managed
show
balance,
highlighting
importance
sustainable
strengthening
ecological
resilience.
Язык: Английский
Forest Carbon Sequestration Functions and Mitigation Strategies for Global Climate Change
Kang Xu,
Gao Feng Zou,
Hanjian Hu
и другие.
IntechOpen eBooks,
Год журнала:
2025,
Номер
unknown
Опубликована: Фев. 21, 2025
This
chapter
aims
to
explore
the
critical
role
of
forests
in
mitigating
global
climate
change
by
enhancing
carbon
sequestration.
We
synthesized
research
sink,
showcasing
their
significant
sink
potential.
Drawing
on
previous
studies,
we
introduced
contributions
various
forest
types
and
management
practices
bolster
Case
studies
successful
nature-based
solutions
(NbS)
projects
are
highlighted
illustrate
effective
strategies
for
increasing
sinks.
Additionally,
outlined
methodologies
quantifying
sequestration,
encompassing
field-based
approaches,
remote
sensing
technologies,
advanced
modeling
techniques.
Sustainable
were
evaluated,
with
a
focus
afforestation,
reforestation,
conservation,
efficient
utilization
resources,
including
wood
products
renewable
energy
integration.
Furthermore,
discussed
existing
policy
frameworks,
particular
emphasis
REDD+
initiative,
provide
recommendations
enhance
effectiveness
promoting
In
summary,
this
offers
holistic
perspective
how
can
be
leveraged
as
vital
tool
combating
change.
Язык: Английский
How Do Climate and Latitude Shape Global Tree Canopy Structure?
Forests,
Год журнала:
2025,
Номер
16(3), С. 432 - 432
Опубликована: Фев. 27, 2025
Understanding
global
patterns
of
tree
canopy
height
and
density
is
essential
for
effective
forest
management
conservation
planning.
This
study
examines
how
these
attributes
vary
along
latitudinal
gradients
identifies
key
climatic
drivers
influencing
them.
We
utilized
high-resolution
remote
sensing
datasets,
including
a
10
m
resolution
dataset
aggregated
to
1
km
computational
efficiency,
derived
from
ground-based
measurements.
To
quantify
the
relationships
between
structure
environmental
factors,
we
applied
nonlinear
regression
models
climate
dependency
analyses,
incorporating
bioclimatic
variables
WorldClim
dataset.
Our
finding
that
latitude
exerts
dominant
but
asymmetric
control
on
density,
with
tropical
regions
exhibiting
strongest
correlations.
Tree
follows
quadratic
pattern,
explaining
29.3%
variation,
this
relationship
most
pronounced
in
tropics
(−10°
10°
latitude,
R2
=
91.3%),
where
warm
humid
conditions
promote
taller
forests.
Importantly,
effect
differs
by
hemisphere,
Southern
Hemisphere
(R2
67.1%)
showing
stronger
dependence
than
Northern
35.3%),
indicating
asymmetry
growth
dynamics.
exhibits
similar
trend
weaker
predictive
power
7%);
however,
within
tropics,
explains
90.6%
underscoring
strong
constraints
biodiverse
ecosystems.
Among
isothermality
(Bio
3)
identified
as
determinant
50.8%),
suggesting
stable
temperature
fluctuations
foster
strongly
influenced
mean
diurnal
range
2,
36.3%),
emphasizing
role
daily
thermal
variability
distribution.
Precipitation-related
factors
14
Bio
19)
moderately
explain
(~33%)
(~25%),
reinforcing
moisture
availability
structuring
advances
ecology
research
integrating
data
robust
climate-driven
modeling,
revealing
previously
undocumented
hemispheric
asymmetries
biome-specific
dependencies.
These
findings
improve
offer
new
insights
strategies,
particularly
vulnerable
change.
Язык: Английский
Associations between stand spatial structures and carbon sequestration on natural Larix gmelinii forests in Northeast China
Trees Forests and People,
Год журнала:
2025,
Номер
unknown, С. 100837 - 100837
Опубликована: Март 1, 2025
Язык: Английский
Short-Term Effects of Thinning on Vegetation Carbon Dynamics and Soil Respiration in Secondary Broadleaf Forests
Forests,
Год журнала:
2024,
Номер
15(12), С. 2109 - 2109
Опубликована: Ноя. 28, 2024
As
an
important
means
of
near-natural
management
in
secondary
forests,
thinning
effectively
enhances
the
growth
status
forest
trees,
and
increases
overall
yield
carbon
sequestration
capacity
floor
through
rational
stand
regulation.
This
study
focused
on
subtropical
broadleaf
forests
mountainous
regions
western
Zhejiang,
China,
involved
three
treatment
groups:
a
high-intensity
group
(HT)
(retaining
trees
with
diameter
greater
than
8
cm
removing
shrub-layer
vegetation),
low-intensity
(LT)
5
control
plot
(no
treatment)
(CK).
The
aimed
to
investigate
effects
different
intensities
stocks,
soil
respiration,
environmental
factors,
as
well
assess
how
modifications
impact
floor.
results
illustrate
following:
(1)
biomass
individual
under
HT
were
significantly
compared
other
groups.
Conversely,
stock
arboreal
layer
was
higher
LT
treatments.
(2)
Thinning
operations
increased
stocks
improved
fertility.
(3)
High-intensity
moisture
both
surface
subsurface
layers,
showing
highest
levels.
(4)
One
year
after
thinning,
organic
matter
(SOM)
significantly,
rising
by
30.86%
21.84%
CK.
(5)
In
comparison
CK,
showed
significant
increase
respiration
rates,
which
led
CO2
N2O
emissions
from
while
also
suppressing
CH4
uptake.
concludes
that
can
enhance
tree
improve
fertility,
reduce
greenhouse
gas
emissions.
supports
sustainable
development
ecosystems
effective
management.
Язык: Английский