Enzyme Activity Stoichiometry Suggests That Fertilization, Especially Nitrogen Fertilization, Alleviates Nutrient Limitation of Soil Microorganisms in Moso Bamboo Forests
Forests,
Год журнала:
2024,
Номер
15(6), С. 1040 - 1040
Опубликована: Июнь 16, 2024
Rational
application
of
N
fertilizer
is
essential
for
maintaining
the
long-term
productivity
Moso
bamboo
forests.
Microbial
activity
a
crucial
indicator
soil
quality.
Changes
in
nutrient
resources
due
to
addition
can
lead
microbial
limitations,
thereby
impeding
maintenance
Currently,
there
limited
research
on
effects
limitations
forest
soils.
To
examine
changes
extracellular
enzyme
and
soils
following
application,
we
conducted
an
experiment
northern
Guizhou.
The
findings
revealed
that
N3
treatment
(726
kg·N·hm−2·yr−1)
significantly
reduced
β-glucosidase
(BG)
by
27.61%
compared
control
group
(no
fertilization).
N1
(242
kg·N·hm−2·yr−1),
N2
(484
treatments
notably
increased
activities
leucine
aminopeptidase
(LAP)
N-acetyl-β-D-glucosidase
(NAG)
11.45%
15.79%.
Acid
phosphatase
(ACP)
remained
unaffected
fertilization.
decreased
C:Ne
C:Pe
ratios,
while
N:Pe
ratio
was
less
influenced
application.
Scatter
plots
vector
characteristics
stoichiometry
suggested
microorganisms
study
area
were
C
N,
length
angle,
indicating
alleviated
limitation
Redundancy
Analysis
(RDA)
demonstrated
biomass
phosphorus
(MBP)
most
critical
factor
affecting
stoichiometry.
Furthermore,
Random
Forest
Regression
analysis
identified
MBP
N:Pm
as
significant
factors
influencing
limitation,
respectively.
modulates
acquisition
strategy
altering
Formulating
strategies
based
requirements
more
beneficial
quality
sustainably
managing
Additionally,
our
offers
theoretical
reference
understanding
carbon
cycling
ecosystems
context
substantial
inputs.
Язык: Английский
Challenges in alpine meadow recovery: The minor effect of grass restoration on microbial resource limitation
Journal of Environmental Management,
Год журнала:
2025,
Номер
374, С. 124086 - 124086
Опубликована: Янв. 9, 2025
Язык: Английский
Effects of environmental factors on the phenotypic traits and seed element accumulation of wild Elymus nutans in Tibet
Scientific Reports,
Год журнала:
2025,
Номер
15(1)
Опубликована: Янв. 13, 2025
Soil
nutrients
and
meteorological
conditions
are
pivotal
environmental
factors
influencing
plant
growth
development.
This
study
systematically
analyzes
how
soil
influence
the
phenotypic
seed
production
of
wild
Elymus
nutans
in
Tibet.
These
critical
ecological
determinants,
this
research
seeks
to
unveil
complex
diverse
adaptation
mechanisms
species.
The
encompasses
ten
counties
within
Tibet
Autonomous
Region,
with
sampling
points
distributed
across
seven
distinct
environments.
By
evaluating
root
nutrient
levels,
collecting
data,
analyzing
characteristics
elemental
composition
at
various
points,
assesses
adaptability
under
conditions.
Cluster
analysis
categorized
25
samples
into
four
groups,
each
exhibiting
significant
differences
height
leaf
length.
Correlation
revealed
a
negative
correlation
between
point
elevation
NH₄⁺,
total
phosphorus,
available
phosphorus
content,
while
positive
was
observed
pH
levels.
Meteorological
variables—including
temperature,
humidity,
precipitation—significantly
influenced
phenotypes
seeds.
ammonium
nitrogen,
vital
for
nutans,
their
deficiency
has
impact
on
overall
growth.
Environments
characterized
by
high
altitude,
aridity,
intense
radiation
constrain
Climatic
altering
environment,
where
quality
plays
role
determining
interact
collectively
ecosystem.
Язык: Английский
Study on the Characteristics of Soil Depletion and Degradation in the Coal Fire Area of the Southern Junggar Coalfield, Xinjiang, China
Land Degradation and Development,
Год журнала:
2025,
Номер
unknown
Опубликована: Янв. 30, 2025
ABSTRACT
Coal
mining
can
lead
to
coal
spontaneous
combustion,
especially
in
arid
and
semi‐arid
areas,
soil
suffer
varying
degrees
of
depletion
degradation,
which
be
harmful
the
regional
eco‐environment.
However,
characteristics
degradation
are
not
yet
clear
fire
there
fewer
quality
assessments.
In
this
study,
we
studied
ions,
nutrient
their
stoichiometric
ratios
at
different
sampling
points
thermal
effects.
The
principal
component
analysis
membership
function
were
used
calculate
index
(SQI)
comprehensively
evaluate
impact
effects
on
(SQ).
results
showed
that
cations
dominated
by
Na
+
anions
Cl
−
SO
4
2−
,
higher
temperature,
concentration
.
concentrations
tended
increase
with
increasing
while
opposite
was
true
for
K
Soil
organic
carbon
(SOC)
increased
Total
nitrogen
(N)
content
lower
when
heated
40°C
5
d,
N:P
ratio
8.99.
degree
time
only
than
70°C
10
20
indicated
SQ
initially
affected
temperature.
using
Sikeshu
(SKS)
area
(SQI
=
0.183)
Wugong
(WG)
0.281).
homemade
heating
experiment,
SQI
raw
soil.
SQIs
consistent
d
indicating
effect
low
temperature
a
long
high
short
equivalent.
study
provide
theoretical
basis
improvement
ecological
restoration
areas.
Язык: Английский
Warming Does Not Change Vertical Variations in Microbial Resource Limitation in Subtropical Forests at China
Forests,
Год журнала:
2025,
Номер
16(3), С. 402 - 402
Опубликована: Фев. 24, 2025
Global
warming
can
differentially
alter
ecosystem
carbon,
nitrogen,
and
phosphorus
dynamics,
regulating
the
balance
between
soil
substrate
supply
microbial
metabolic
demand.
However,
empirical
research
on
how
influences
resource
limitation
along
profile
remains
limited,
particularly
in
tropical–subtropical
regions.
Here,
we
investigated
vertical
variations
(0–60
cm
layers)
their
corresponding
responses
to
subtropical
forests
southern
China,
using
a
experiment
with
heating
cables
(+4
°C)
enzymatic
stoichiometry.
Alleviated
carbon
but
aggravated
nutrient
(nitrogen
phosphorus)
for
metabolism
was
observed
profiles,
regardless
of
treatment.
Among
different
depths,
mitigated
conditions
exacerbated
0–10
surface
layer,
had
no
significant
effect
below
20
depth.
Moreover,
nitrogen
were
primarily
regulated
by
moisture
fungal–bacterial
ratio
In
contrast,
changes
driven
under
ambient
conditions,
carbon–phosphorus
after
warming.
For
soil,
effects
mainly
explained
biomass
stoichiometry
ratio.
Overall,
diverse
entire
profile.
These
findings
provide
important
insights
accurately
predicting
biogeochemical
cycles
global
scenarios.
Язык: Английский
Understory Vegetation Regulated the Soil Stoichiometry in Cold-Temperate Larch Forests
Plants,
Год журнала:
2025,
Номер
14(7), С. 1088 - 1088
Опубликована: Апрель 1, 2025
Carbon
(C),
nitrogen
(N),
and
phosphorus
(P)
are
vital
nutrients
in
the
soil,
exerting
a
profound
influence
on
primary
productivity
of
ecosystems.
However,
our
understanding
how
understory
influences
soil
their
stoichiometry
remains
limited,
especially
cold-temperate
forests
where
plays
crucial
role
mediating
nutrient
cycling.
To
elucidate
effect
vegetation
nutrients,
three
typical
larch
forests,
namely
Sphagnum-Bryum-Rhododendron
tomentosum-Larix
gmelinii
forest
(SLL),
Rhododendron
dauricum-Larix
(RL),
(LL),
were
selected
region
northeast
China
to
determine
organic
carbon
(SOC),
total
(TN),
(TP)
contents,
stoichiometric
characteristics
0-100
cm
depth.
The
results
revealed
following:
(1)
Significant
differences
its
existed
among
different
types
(p
<
0.001),
with
SLL
displaying
highest
mean
SOC,
TN,
TP
as
well
C:N,
C:P,
N:P
ratios,
whereas
RL
exhibited
lowest
values
0.05).
(2)
Across
profile,
content
showed
decreasing
trends
depth,
significant
layers.
(3)
Variations
significantly
correlated
bulk
density,
pH,
temperature,
water
content,
porosity,
capillary
porosity
This
study
underscores
necessity
further
consideration
impact
future
research
Язык: Английский
Response of Soil Enzyme and Plant Stoichiometry to Root Interactions: Insights from Mixed Plantings of Moso Bamboo
Forests,
Год журнала:
2025,
Номер
16(5), С. 722 - 722
Опубликована: Апрель 23, 2025
Root
interactions
are
crucial
in
regulating
soil
microbial
metabolism
and
plant
nutrient
allocation
strategies,
especially
mixed
plantings.
However,
the
effects
of
planting
direct
root
contact
on
properties
remain
unclear.
Thus,
we
established
potted
plants
with
Moso
bamboo
(Phyllostachys
edulis)
Phoebe
chekiangensis
created
a
physical
barrier
to
system
without
blocking
chemical
communication
using
four
treatments:
segregation
(MT),
(MS),
pure
(BT),
(BS).
We
investigated
changes
content,
enzyme
activity,
metabolic
limitation.
The
results
show
that
significantly
affected
content
activities.
Compared
two
treatments,
increased
carbon
limitation
but
decreased
nitrogen
Physical
between
roots
use
efficiency
(CUE)
compared
no
segregation.
Random
forest
analyses
revealed
best
predictors
C
N
limitations
CUE
were
biomass
dissolved
organic
(DON),
respectively.
Partial
least
squares
path
modeling
indicated
separation,
directly
indirectly,
through
their
nutrients,
biomass,
Carbon
contents.
Our
study
provides
further
insights
into
factors
influencing
limitation,
CUE,
strategies
plantations.
Язык: Английский