Polish Journal of Environmental Studies,
Journal Year:
2023,
Volume and Issue:
32(6), P. 5307 - 5317
Published: Sept. 12, 2023
Changes
in
vegetation
communities
are
projected
to
have
a
greater
impact
on
the
turnover
and
storage
of
carbon
coastal
wetlands
by
affecting
soil
organic
matter
decomposition.Microbial
metabolism
regulates
process
decomposition
soil.However,
there
is
still
need
for
mechanistic
framework
predict
effects
changes
microbial
metabolism.Hence,
this
study
aimed
evaluate
changing
trends
metabolic
limitation
use
efficiency
under
natural
succession
community
degradation
wetland
using
extracellular
enzyme
ecological
stoichiometric
ratios.The
results
showed
that
microorganisms
at
sites
experienced
higher
limitations
compared
others.Microbial
was
significantly
lower
(p<0.05).A
trade-off
between
observed,
as
these
two
factors
were
negatively
associated.Furthermore,
strong
correlation
with
pH.These
findings
suggest
that,
balance
mitigate
adverse
pH
changes,
allocate
more
from
toward
production
relevant
enzymes.
Annals of Microbiology,
Journal Year:
2024,
Volume and Issue:
74(1)
Published: April 27, 2024
Abstract
Background
Hundreds
of
millions
tons
coal
fly
ash
are
produced
annually
to
support
economic
development
and
industrial
production.
However,
directly
applying
agricultural
production
can
decrease
the
land
productivity
pose
a
threat
ecosystem
due
poor
physicochemical
properties
seriously
heavy
metal
pollution.
Methods
In
this
study,
field
experiment
investigate
effects
as
soil
amendment
was
conducted
in
Hebei
province,
China.
The
(CFA)
mixed
with
carrier
(CS,
without
containing
ash)
at
different
rates
(0–40%
mass
content)
0–20
cm
layer
top
then
rotovator.
amended
0.45–1.80
kg·m
−
2
G1
for
planting
corn.
Purpose
purpose
study
is
response
mechanism
microbial
community
activities,
soil.
Key
results
found
that
amendment,
which
consisted
humic
acid,
polyacrylamide,
zeolite
powder,
FeSO
4
·7H
O,
improved
chemical
physical
structure
by
increasing
bulk
density
macroaggregates.
highest
corn
yield
observed
B5
(20%
CS
1.3500
G1).
Meanwhile,
abundance
microorganisms
facilitate
circulation
nutrients
such
Acidobacteria
(77.05%),
Sphingomonas
(25.60%),
Nitrospira
(20.78%),
Streptomyces
(11.32%),
Gaiella
(10.20%)
increased.
Conclusions
Overall,
our
indicate
use
enhance
sustainability
improving
functions.
These
findings
provide
reference
application
amendments.
Environmental Science & Technology,
Journal Year:
2024,
Volume and Issue:
58(42), P. 18744 - 18755
Published: Oct. 10, 2024
Resource
demand
by
soil
microorganisms
critically
influences
microbial
metabolism
and
then
ecosystem
resilience
multifunctionality.
The
ecological
remediation
of
abandoned
tailings
is
a
topic
broad
interest,
yet
our
understanding
metabolic
status
in
restored
soils,
particularly
at
the
aggregate
scale,
remains
limited.
This
study
investigated
resources
within
aggregates
from
revegetated
applied
vector
model
ecoenzymatic
stoichiometry
to
examine
how
different
vegetation
patterns
(grassland,
forest,
or
bare
land
control)
impact
resource
limitation.
Five-year
restoration
significantly
elevated
carbon
(C)
nitrogen
(N)
concentrations
their
stoichiometric
ratios
(approximately
2-fold),
although
these
increases
were
not
translated
biomass
its
stoichiometry.
activities
C-
phosphorus
(P)-acquiring
extracellular
enzymes
increased
substantially
postvegetation,
with
most
pronounced
escalation
macroaggregates
(>0.25
mm).
results
indicated
was
colimited
C
P,
acutely
microaggregates
(<0.25
colimitation
exacerbated
monotypic
cover
but
mitigated
under
diversified
cover.
Soil
nutrient
controlled
limitation,
overshadowing
heavy
metals.
Our
findings
underscore
that
optimizing
allocation
through
strategic
revegetation
can
enhance
tailings,
which
advocates
for
implementation
diverse
covers
as
viable
strategy
improve
development
degraded
landscapes.
