Ecotoxicology and Environmental Safety,
Journal Year:
2025,
Volume and Issue:
289, P. 117649 - 117649
Published: Jan. 1, 2025
Immobilization
remediation
is
a
widely
employed
technology
that
effectively
reduces
the
migration
rate
and
bioavailability
of
cadmium
(Cd).
Sepiolite,
commonly
used
agent,
has
proven
effective
in
decreasing
soil
Cd
availability
reducing
accumulation
agricultural
products.
However,
further
investigation
needed
to
understand
impact
sepiolite
on
environmental
quality
microbial
communities.
If
we
add
soil,
community
structure
will
be
improved,
abundance
bacteria
associated
with
Cd-fixing
plant
growth-promoting
enhanced,
which
significantly
immobilize
thereby
enhancing
tolerance
uptake
wheat.
In
this
study,
field
experiments
were
conducted
assess
effects
wheat
yield
traits,
concentration
various
organs,
transport
enrichment
coefficients
wheat,
pH
availability,
The
findings
confirm
applying
enhanced
main
traits
elevated
by
0.30-1.04
units,
reduced
55.46
%
-93.27
(P
<
0.05),
decreased
regulating
different
organs.
most
substantial
changes
observed
when
application
reached
4500
kg
ha-1.
Moreover,
study
noted
an
increase
relative
dominant
species
such
as
Bacteroidota,
Acidobacteria,
Myxococcota,
Patescibacteria
at
phylum
level,
well
Sphingomonas
genus
level
(3.35
-39.27
%).
This
shift
indicated
optimized
structure.
Furthermore,
fixing
promoting
bacterial
communities,
including
Massilia,
Pseudomonas,
Pantoea,
respectively
increased
80.20
%,
64.91
85.19
usage
reaches
research
underscores
can
enhance
Cd-contaminated
reduce
promote
safe
production
Research Square (Research Square),
Journal Year:
2024,
Volume and Issue:
unknown
Published: May 20, 2024
Abstract
Cadmium
(Cd)
contamination
in
soil
is
of
severe
health
and
environmental
concern
because
its
threat
to
human
health,
food
safety,
ecosystem
sustainability.
The
situ
stabilization
Cd
has
been
recognized
as
a
potentially
economical
technique
for
the
rehabilitation
polluted
with
Cd.
Biochar
recently
received
much
attention
an
eco-friendly
recyclable
amendment,
which
more
beneficial
plant
growth,
restoration
contaminated
soil.
An
experiment
was
performed
field
study
efficiency
three
different
types
biochar:
maize
straw
biochar,
bamboo
coconut
shell
activated
carbon
combination
rape
organic
fertilizer
(ROF),
calcium
magnesium
phosphate
(CMPF),
fulvic
acid
(MFA),
respectively,
on
immobilization,
uptake
by
rice,
rice
yield.
indicated
that
biochar-based
amendments
reduced
bioavailability
content
9.58%-27.06%
19.30%-71.77%,
respectively.
transformation
exchangeable
(Ex-Cd)
carbonate
bound
(Ca-Cd),
Fe-Mn
oxide
bond
(Ox-Cd),
residual
(Re-Cd)
accounted
mitigation
absorption
enrichment
rice.
In
addition,
altered
physicochemical
properties
promoted
health.
Biochar-based
enhanced
Fe
Mn
plaques
47.31%-160.34%
25.72%-73.09%,
correlation
analysis
revealed
leaf
Fe/Mn
primarily
controlled
pH,
Eh,
CEC,
SOC,
plaques,
TP
influenced
This
demonstrated
had
higher
benefit
were
applicable
ameliorating
metal-contaminated
agricultural
Frontiers in Environmental Science,
Journal Year:
2024,
Volume and Issue:
12
Published: Oct. 2, 2024
Cadmium
(Cd)
contamination
of
soil
threatens
human
health,
food
security,
and
ecosystem
sustainability.
The
in
situ
stabilization
Cd
has
been
recognized
as
a
potentially
economical
technology
for
the
remediation
Cd-contaminated
soil.
Recently,
biochar
(BC)
activated
carbon
(AC)
have
received
widespread
attention
eco-friendly
amendments
that
are
more
beneficial
plant
growth,
contaminated
An
experiment
was
performed
paddy
field
to
investigate
effects
two
different
types
BC
(maize
straw
bamboo
biochar)
AC
(coconut
shell
carbon)
combination
with
rape
organic
fertilizer
(R),
calcium
magnesium
phosphate
(P),
fulvic
acid
(F),
respectively,
on
immobilization,
accumulation
rice,
yield.
results
indicated
BC/AC-based
reduced
bioavailable
(DTPA-Cd)
brown
rice
by
9.58%–27.06%
19.30%–71.77%,
respectively.
transformation
exchangeable
(Ex-Cd)
carbonate-bound
(Ca-Cd),
Fe-Mn
oxide
bond
(Ox-Cd),
residual
(Re-Cd)
accounted
mitigation
uptake
enrichment
rice.
Additionally,
BC-/AC-based
altered
physicochemical
properties,
which
significantly
increased
pH
cation
exchange
capacity
(CEC),
total
nitrogen
(TN),
phosphorus
(TP),
(SOC),
dissolved
(DOC),
directly
promoting
health.
All
Fe
IMP
Mn
concentrations
47.31%–160.34%
25.72%–73.09%
Fe/Mn
plaque
(IMP),
Maize
biochar-based
yield
10.46%–20.41%
9.94%–16.17%,
while
coconut
shell-activated
severely
65.06%–77.14%.
correlation
analysis
revealed
leaf
primarily
controlled
pH,
Eh,
CEC,
SOC,
IMP,
TP
influenced
DTPA-Cd
This
study
demonstrated
maize
not
only
fields
but
also
decreased
well
improved
yield,
potential
application
agriculture
fields.
Coconut
yields,
is
appropriate
production.
Zinc
(Zn)
and
selenium
(Se)
are
beneficial
elements
for
crops,
enhancing
crop
quality
alleviating
heavy
metal
toxicity.
However,
there
is
limited
research
on
the
role
of
foliar
Zn
Se
in
mechanism
reducing
cadmium
(Cd)
uptake
crops.
A
field
experiment
was
conducted
to
investigate
effect
subcellular
distribution,
leaf
antioxidant
enzyme
activities,
transcriptional
regulation
process
Cd
accumulation
rice
grains
after
applications
Zn,
Se,
their
mixed
solutions
(ZnSe).
The
results
show
that
ZnSe
reduced
content
three
different
hybrid
strains
(13.9%-21.8%/11.9%-29.5%)
by
fixation
capacity
flag
improving
binding
efficiency
between
pectin
cell
wall.
Increased
activities
further
mitigated
toxic
effects
rice,
while
treatments
upregulated
genes
related
metal-binding
proteins
enzymes
downregulated
transport
genes.
This
study
systematically
elucidates
mechanisms
which
application
alleviates
toxicity
through
gene
expression
physiological
functions,
providing
a
theoretical
basis
ensuring
safe
production
food.
