Research Square (Research Square),
Год журнала:
2023,
Номер
unknown
Опубликована: Авг. 3, 2023
Abstract
Developing
forest
carbon
sinks
(FCS)
is
significant
for
China
to
achieve
neutrality.
The
Yellow
River
Basin
a
principal
area
China’s
energy
consumption,
and
the
resource
distribution
of
this
vast
basin
spatially
dependent,
determining
that
development
FCS
cannot
be
separated
geographically.
Based
on
spatial
panel
data
69
prefecture-level
cities
in
from
1988
2018,
we
used
ESDA
reveal
spatial–temporal
characteristics
FCS,
established
econometric
model
investigate
transregional
spillover
effects
FCS.
results
showed
that:
①
overall
gradually
increasing
trend,
with
general
characteristic
“upstream
>
midstream
downstream”
2018.
②FCS
presented
an
agglomeration
pattern
effects,
degree
uneven
varied
across
years.
③Urbanization
rate,
forestry
fixed
assets
investment,
labor
input,
afforestation
management
level
directly
promote
growth,
whereas
harvesting,
precipitation,
temperature
decrease
④Urbanization
have
positive
while
precipitation
adverse
Hence,
pertinent
policy
suggestions
are
put
out
serve
as
guide
Forest Ecosystems,
Год журнала:
2024,
Номер
11, С. 100172 - 100172
Опубликована: Янв. 1, 2024
Forest
soils
in
tropical
and
subtropical
areas
store
a
significant
amount
of
carbon.
Recent
frameworks
to
assess
soil
organic
matter
(SOM)
dynamics
under
evolving
global
conditions
suggest
that
dividing
bulk
SOM
into
particulate
mineral-associated
(POM
vs.
MAOM)
is
promising
method
for
identifying
how
contributes
reducing
warming.
Soil
macrofauna,
earthworms,
millipedes
have
been
found
play
an
important
role
facilitating
processes.
However,
these
two
co-existing
macrofaunae
impact
the
litter
decomposition
process
directly
formation
POM
MAOM
remains
unclear.
Here,
we
set
up
microcosm
experiment,
which
consisted
20
microcosms
with
four
treatments:
earthworm
addition
(E),
(M),
earthworm,
millipedes,
(E
+
M),
control
(only
addition)
five
replicates.
The
were
sterilized
prior
beginning
incubation
experiment
remove
any
existing
microbes.
After
incubating
samples
42
days,
properties
(mass,
C,
N
contents),
physicochemical
properties,
as
well
C
contents,
13C
abundance
0–5
5–10
cm
layers
measured.
Finally,
relative
influences
microbial
on
distribution
fractions
analyzed.
mass,
associated
all
treatments
significantly
decreased
after
incubation,
especially
treatment
E
M
(litter
mass:
−58.8%,
C:
−57.0%,
N:
−75.1%,
respectively),
while
biomass
E.
Earthworm
or
millipede
alone
showed
no
effects
carbon
(OC)
total
nitrogen
(TN)
content
fraction,
but
joint
both
increased
OC
TN
regardless
depth.
Importantly,
three
macrofauna
fraction.
More
than
65%
variations
throughout
can
be
explained
by
combination
properties.
Changes
layer
are
likely
due
decrease
pH
increase
arbuscular
mycorrhizal
fungi
(AMF),
those
probably
caused
increases
exchangeable
Ca
Mg,
gram-negative
(GN)
bacteria.
observed
changes
resulted
from
AMF,
GN,
(GP)
bacteria,
could
Mg
GN
results
indicate
coexistence
earthworms
accelerate
more
fractions.
This
novel
finding
helps
unlock
processes
complex
systems
serve
sinks
forests
addresses
importance
maintaining
C-neutral
atmospheric
climate
change.
Forests,
Год журнала:
2025,
Номер
16(3), С. 456 - 456
Опубликована: Март 4, 2025
Chile
holds
~50%
of
temperate
forests
in
the
Southern
Hemisphere,
thus
constituting
a
genetic–ecological
heritage.
However,
intense
anthropogenic
pressures
have
been
inducing
distinct
forest
structural-regeneration
patterns.
Accordingly,
we
evaluated
22
soil
properties
at
0–5
and
5–20
cm
depths
two
protected
sites,
with
similar
perturbation
records
but
contrasting
post-disturbance
regeneration
stages:
long-term
secondary
(~50
y)
(SECFORST)
(dominated
by
Chusquea
sp.-understory)
short-term
after
disturbance
(~5
(FADIST)
within
Nothofagus
spp.
to
determine
potential
these
soils
promote
nutrient
availability,
water
cycling,
organic
carbon
(SOC)
sequestration
(CO2→SOC),
microbiome.
Results
detected
93
correlations
(r
≥
0.80);
however,
no
significant
differences
(p
<
0.05)
physical
or
chemical
properties,
except
for
infiltration
velocity
(+27.97%),
penetration
resistance
(−23%),
SOC
(+5.64%),
%
Al
saturation
(+5.64%)
relative
SECFORST,
consistent
trend
suitable
values
>
were
estimated.
The
SOC→CO2
capacity
reached
4.2
±
0.5
2.7
0.2
Mg
C
y−1
only
microbial
abundance
shifts
observed.
These
findings
provide
relevant
insights
on
belowground
resilience,
evidenced
ecosystem
services
provision
capacities
over
time,
which
may
be
influenced
progressively
opportunistic
sp.
Microorganisms,
Год журнала:
2025,
Номер
13(5), С. 1049 - 1049
Опубликована: Апрель 30, 2025
Intercropping
is
an
effective
approach
for
enhancing
soil
organic
carbon
(SOC)
sequestration.
However,
the
effects
of
intercropping
on
SOC
dynamics
and
underlying
factors
in
rhizosphere
bulk
soils
are
still
unclear.
In
this
study,
we
examined
impacts
sugarcane
monoculture
sugarcane-watermelon
properties,
respiration,
fractions,
microbial
C
limitation
with
continuous
two
years
2023-2024
Nala
area
Guangxi
Province.
Our
results
revealed
that
significantly
decreased
CO2/SOC
by
25%
21%
rhizosphere,
more
pronounced
reductions
observed
33%
25%,
respectively.
This
means
reduced
respiration
effect
can
be
offset
effects.
Additionally,
increased
contents
mineral-associated
(MAOC)
15~18%
particulate
(POC)
34~46%.
The
random
forest
analysis
indicated
enzyme
activities
(explaining
20~38%
variation)
properties
22%
were
primary
drivers
CO2
emissions.
PLS-PM
showed
influencing
pH
water
content
(SWC),
then
MAOC,
which
finally
led
to
a
decline
Overall,
these
findings
highlight
decreasing
emissions
during
use
system
importance
cycle
via
fractions.
Frontiers in Forests and Global Change,
Год журнала:
2024,
Номер
7
Опубликована: Авг. 23, 2024
The
stability
of
soil
organic
carbon
(SOC)
is
crucial
for
the
global
cycle
and
serves
as
a
key
indicator
quality
eco-system
function.
In
Karst
areas,
SOC
influenced
by
unique
geological
conditions.
Studying
in
these
regions
significant
understanding
regional
ecosystem
functions
role
mitigating
climate
change.
This
review
examines
fractions
analyzing
impacts
factors
such
rocky
desertification,
land
use
changes,
vegetation
restoration
on
stability,
along
with
their
underlying
mechanisms.
It
also
discusses
current
challenges
opportunities
stability.
aims
to
guide
development
effective
ecological
rehabilitation
management
strategies
degraded
ecosystems
areas.
