Forest Science and Technology,
Год журнала:
2024,
Номер
unknown, С. 1 - 13
Опубликована: Дек. 12, 2024
Calophyllum
inophyllum
is
a
superior
choice
for
sustainable
biodiesel
production.
This
tree
highly
productive,
adaptable
to
various
land
types,
and
has
significant
potential
carbon
sequestration.
study
aimed
determine
storage
variation
in
biomass,
litter,
soil
among
C.
provenances
from
eight
islands
Indonesia;
identify
the
best
allometric
model
estimating
total
plant
biomass
stock;
assess
impact
of
physicochemical
properties
litter
fiber
content
on
stock.
Plant,
samples
were
purposively
selected
32
sample
points
8
provenances.
Analysis
variance
was
carried
out
variations
its
components
(stems,
branches,
twigs,
leaves,
stumps,
roots),
as
well
organic
carbon.
The
equation
estimate
based
value
coefficient
determination
(R2)
RMSE
(Root
Mean
Square
Error).
Redundancy
(RDA)
effect
followed
by
partial
analysis
(Variation
Partitioning
Analysis).
results
this
showed
that
components,
not
significantly
different
tBC
averaged
13.46
tons
ha−1,
4.75
tSOC
75.91
ton
ha−1
with
most
stored
trunks
(31.02%)
stock
(81%).
Quadratic
(tBC
=
0,4172DBH2
-
1,3433DBH
+
2,3498)
diameter
at
breast
height
(DBH)
predictor
variable.
Most
influenced
chemical
(76%)
physical
(11%)
(5%).
implies
development
Indonesia
may
utilize
seeds
or
planting
materials
any
origin,
disregarding
Applying
and/or
mineral
nutrients
(N,
P,
K)
will
increase
plantations.
underscores
significance
assessing
stocks
enhance
role
establishing
climate
change
policies
promoting
resource
management.
Diversity,
Год журнала:
2025,
Номер
17(3), С. 157 - 157
Опубликована: Фев. 25, 2025
The
factors
driving
plant
species
diversity
in
different
forest
types
and
layers
are
still
insufficiently
understood.
Therefore,
we
investigated
the
limiting
of
nutrient
water
use
efficiency
three
(arbor,
shrub
herb
layers)
two
(plantation
natural
forest),
as
well
their
potential
relationship
with
diversity.
study
area
is
located
mid-latitude
evergreen
broad-leaved
ecosystems
southern
Anhui
province.
nitrogen
content
soil
(2.90
g
kg−1)
exceeded
national
average
for
(1.06
kg−1),
whereas
phosphorus
(0.43
was
below
such
(0.65
kg−1).
arbor
layer
comparatively
low,
exerted
a
more
substantial
influence
on
it.
In
contrast,
had
most
significant
impact
layers.
conclusion,
has
little
effect
growth
patterns
this
area,
while
there
role
regulating
succession
rates.
There
phenomenon
excessive
deposition
loss
ecosystem.
Despite
fact
that
indices
(the
Pielou
Evenness
Index,
Gleason
Richness
Shannon–Wiener
Diversity
Index
Simpson
Dominance
Index)
forests
were
higher
than
plantation
forests,
disparity
between
them
not
(p
>
0.05).
This
may
be
due
to
similar
climate.
findings
research
hold
significance
forecasting
alterations
diversity,
functionality,
influencing
within
forests.
Plants,
Год журнала:
2025,
Номер
14(6), С. 937 - 937
Опубликована: Март 17, 2025
Land
use
change
driven
by
vegetation
succession
significantly
enhances
soil
carbon
storage,
yet
the
microbial
mechanisms
underlying
this
process
remain
poorly
understood.
This
study
aims
to
elucidate
mechanistic
linkages
between
bacterial
community
dynamics
and
organic
matter
stabilization
across
four
stages
on
Loess
Plateau:
abandoned
farmland
(AF),
grassland
stage
(GS),
shrub-land
(SS),
forest
(FS).
We
analyzed
(SOM_C)
fractions,
physicochemical
properties,
communities
(16S
rRNA
sequencing),
employing
structural
equation
modeling
quantify
causal
pathways.
The
results
showed
that
content
of
total
(TOM_C),
labile
(LOM_C),
dissolved
(DOM_C),
biomass
(MBC)
increased
progressively
with
succession,
peaking
in
FS,
23.87
g/kg,
4.13
0.33
mg/kg,
0.14
respectively.
Furthermore,
also
led
heterogeneity
structure.
number
operational
taxonomic
units
(OTUs)
for
was
9966,
13,463,
14,122,
10,413,
showcasing
highest
OTUs.
Nine
taxa
were
strongly
correlated
SOM_C
stabilization.
Affected
bacteria,
properties
litter
directly
influence
SOM_C,
pathway
(path
coefficient:
0.792,
p
<
0.001)
having
a
greater
impact
than
0.221,
0.001).
establishes
not
only
through
inputs
but
reshaping
toward
stabilize
via
interactions.
Ecology and Evolution,
Год журнала:
2025,
Номер
15(4)
Опубликована: Апрель 1, 2025
ABSTRACT
Investigating
the
differences
among
plant
functional
types
(PFTs)
and
their
responses
to
N
deposition
is
crucial
for
predicting
carbon
nutrient
cycles
improving
forest
management
strategies.
Our
research
aimed
examine
decomposition
rates
loss
of
leaf
litter
fine
roots
from
ancient
recently
evolved
species
response
deposition.
We
hypothesized
that
(1)
leaves
tree
decomposes
slower
than
those
due
higher
C:N
ratios
structural
compound
content;
(2)
effect
addition
on
differs
across
different
stages
influenced
by
associated
PFT;
(3)
morphology
substrate
quality
are
key
predictors
both
species.
Field
experiments
were
conducted
with
under
control
N‐addition
treatment
(10
g·m
−2
·a
−1
),
focusing
three
The
rate
constants
(
k
values)
lower
species,
values
1.01
1.68
conditions,
1.07
1.08
addition.
For
roots,
had
only
(1.05
1.40),
whereas
no
significant
observed
between
conditions.
Furthermore,
residual
in
was
compared
controls,
while
such
distinct
patterns
this
study
provide
valuable
insights
into
complexity
deposition,
highlighting
importance
considering
PFTs
organ
ecosystem
responses.
Forest Science and Technology,
Год журнала:
2024,
Номер
20(3), С. 231 - 243
Опубликована: Май 20, 2024
Fertilizer
application
plays
a
crucial
role
in
the
decomposition
of
white
poplar
leaf
litter
and
cycling
nutrients
within
forest
ecosystems.
The
impact
various
fertilizer
additions
on
nutrient
is
poorly
understood.
In
this
study,
seven
treatments
were
conducted
at
following
levels:
Control
(CK),
no
adding
mineral
fertilizers,
N
fertilization
(+N),
P
(+NP),
N,
P,
K
(+NPK),
(+PK),
manure
(+MF),
bird
fertilizers
(+BF)
plantation
Qadis
district,
used
litterbag
techniques
to
measure
mass
remaining.
main
objectives
our
study
were:
(1)
explore
response
accelerate
process;
(2)
examine
relationship
between
C,
concentration
their
stoichiometric
characteristic
soil.
investigation,
results
showed
that
was
significantly
affected
by
process
greatly
accelerated
with
+
MF,
+NPK,
BF.
decay
rate
constant
k
(year
−1)
shows
as
follows:
+MF
>
+NPK
+BF
+PK
+NP
+N
CK
(0.56,
0.53,
0.52,
0.51,0.51,0.5,
0.46).
Soil
increased
during
time
BF,
respectively,
while
C:N,
C:P,
N:P
ratios
highest
litter,
lowest
soil,
we
observed
significant
association
concentrations
soil
stoichiometric.
This
current
concluded
BF
might
be
preferred
management
option
they
provided
potentially
beneficial
changes
concentration.
data
obtained
will
valuable
reference
for
strategies
