Soil Use and Management,
Год журнала:
2022,
Номер
38(3), С. 1481 - 1492
Опубликована: Апрель 4, 2022
Abstract
The
accumulation
of
plastics
in
the
soil
ecosystem
poses
an
increasing
environmental
concern
worldwide.
However,
little
is
known
about
effect
plastic
concentrations
on
properties
and
biota.
In
this
study,
we
investigated
low‐density
polyethylene
(LDPE)
microplastics
(MPs)
chemical
microbial
agricultural
using
a
set
microcosm
experiments.
was
incubated
for
100
days
with
LDPE
at
0%,
0.1%,
1%,
3%,
5%,
7%
25°C
70%
water‐holding
capacity.
Along
analysis,
conducted
analysis
first
day
again
after
incubation.
≥1%
significantly
(
p
<
.05)
decreased
pH
but
increased
electrical
conductivity
comparison
control
(0%
days).
Increasing
concentration
did
not
affect
exchangeable
cation
content
or
available
Pb
concentration.
Firmicutes
were
most
abundant
phyla
day,
whereas
Proteobacteria,
Actinobacteria
became
dominant
all
treatments
days.
An
abundance
Proteobacteria.
Principal
component
demonstrated
that
only
positively
correlated
Actinobacteria,
indicating
higher
contributed
to
growth
phylum.
findings
study
imply
MP
contamination
could
activity
these
effects
primarily
depend
soil.
Frontiers in Plant Science,
Год журнала:
2023,
Номер
14
Опубликована: Авг. 11, 2023
Microplastic
(MP)
pollution
is
becoming
a
global
problem
due
to
the
resilience,
long-term
persistence,
and
robustness
of
MPs
in
different
ecosystems.
In
terrestrial
ecosystems,
plants
are
exposed
MP
stress,
thereby
affecting
overall
plant
growth
development.
This
review
article
has
critically
analyzed
effects
stress
plants.
We
found
that
stress-induced
reduction
physical
accompanied
by
two
complementary
effects:
(i)
blockage
pores
seed
coat
or
roots
alter
water
nutrient
uptake,
(ii)
induction
drought
increased
soil
cracking
MPs.
Nonetheless,
physiological
under
four
excessive
production
ROS,
alteration
leaf
root
ionome,
(iii)
impaired
hormonal
regulation,
(iv)
decline
chlorophyll
photosynthesis.
Considering
that,
we
suggested
targeting
redox
regulatory
mechanisms
could
be
beneficial
improving
tolerance
plants;
however,
antioxidant
activities
highly
dependent
on
species,
tissue,
type,
dose.
also
indirectly
reduces
altering
productivity.
However,
MP-induced
negative
vary
presence
surface
functional
groups
particle
sizes.
end,
utilization
agronomic
approaches,
including
application
regulators,
biochar,
replacing
plastic
mulch
with
crop
residues,
diversification,
biological
degradation,
ameliorate
The
efficiency
these
methods
MP-type-specific
dose-dependent.
Frontiers in Environmental Science,
Год журнала:
2023,
Номер
11
Опубликована: Фев. 16, 2023
With
the
global
food
deficit
increasing
and
rising
climate
change
issues,
there
is
a
need
to
find
green
solutions
improve
soil
fertility
productivity
while
enhancing
biochemical
quality
reducing
ecological
impact
of
agriculture.
Biochar
potentially
cost-effective,
carbonaceous
resource
with
many
agricultural
environmental
applications.
As
amendment,
it
improves
physical
properties
increases
productivity—particularly
over
long-term—increasing
aggregation,
water
retention,
pH,
microbial
activities,
thus,
improving
overall
quality,
helping
reduce
chemical
fertilizer
needs
time.
The
extent
biochar’s
on
physiochemical
varies
depending
biochar
source,
type,
size,
inherent
characteristics,
cropping
system,
etc.
Moreover,
has
significant
potential
in
remediation,
especially
through
its
unique
adsorption
capable
capture
immobilize
pollutants
such
as
metal(loid)s,
organic
pollutants,
hazardous
emerging
contaminants
microplastics.
Further,
also
emerged
key
strategic,
cost-effective
material
tackle
issues
mitigation,
net
greenhouse
gas
emission
minimize
warming
potential.
However,
knowledge
gap
remains
understanding
long-term
persistence
agroecosystem,
optimal
application
rate
for
diversity
biochar-soil-crop-environmental
conditions,
interaction
carbon
stock,
specific
mechanisms
effect
biotic
properties,
quantification
sequestration,
emissions,
synergy
or
antagonistic
effects
other
sources
compost,
manure,
residues,
etc.,
modification
applications
associated
human
risks
long-term.
Further
research
needed
evaluate
impacts
types
sizes
recommend
suitable
practices
based
management
system.
Also,
be
finetuned
wider
target
pressing
pollution.
Separations,
Год журнала:
2023,
Номер
10(3), С. 197 - 197
Опубликована: Март 13, 2023
Soil
contamination
with
organic
contaminants
and
various
heavy
metals
has
become
a
global
environmental
concern.
Biochar
application
for
the
remediation
of
polluted
soils
may
render
novel
solution
to
soil
issues.
However,
complexity
decontaminating
mechanisms
real
environment
significantly
influences
preparation
large-scale
biochar
ramification.
This
review
paper
highlights
utilization
in
immobilizing
eliminating
pollutants
from
contaminated
factors
affecting
efficacy
biochar.
Furthermore,
risks
related
unpolluted
agricultural
are
also
debated.
production
conditions
(pyrolysis
temperature,
feedstock
type,
residence
time)
rate
greatly
influence
performance
remediating
soils.
Biochars
prepared
at
high
temperatures
(800
°C)
contained
more
porosity
specific
surface
area,
thus
offering
adsorption
potential.
The
redox
electrostatic
contributed
oxyanions,
whereas
ion
exchange,
complexation,
precipitation
were
mainly
involved
cations.
Volatile
compounds
(VOCs),
dioxins,
polycyclic
aromatic
hydrocarbons
(PAHs)
produced
during
pyrolysis
induce
negative
impacts
on
alga,
microbes,
plants.
A
careful
selection
its
compatibility
carbonization
technology
having
suitable
operating
is
essential
avoid
these
impurities.
It
would
help
prepare
desired
features
target
particular
pollutant
site.
provided
explicit
knowledge
developing
cost-effective,
environment-friendly
biochar,
which
could
be
used
decontaminate
targeted
large
scale.
future
study
directions
described
ensure
sustainable
safe
as
improver
reclamation
Environmental Technology & Innovation,
Год журнала:
2023,
Номер
31, С. 103174 - 103174
Опубликована: Май 2, 2023
Microplastics
(MPs)
have
been
confirmed
as
a
novel
type
of
environmental
pollutant.
They
long-term
existence
in
the
soil
environment
and
threaten
ecological
system.
Biochar
amendment
is
capable
enhancing
water
nutrient
holding
capacity
improving
structure
quality
terrestrial
ecosystems.
However,
effect
biochar
on
bacterial
community
MPs-contaminated
soil–plant
system
remain
unclear,
particular
prediction
function
these
systems.
In
this
study,
effects
were
investigated
through
different
treatments
at
three
pepper
growth
stages,
was
predicted.
As
indicated
by
results
led
to
increased
species
evenness
richness
soil,
enhanced
relative
abundance
tolerant
bacteria
(e.g.,
Proteobacteria,
Acidobacteria,
Actinobacteria,
Bacteroidetes),
well
improved
Massilia,
Lysobacter,
Terrimonas.
Furthermore,
total
phosphorus
(TP),
organic
carbon
(SOC),
NH4+-N,
NO3−-N,
pH
served
main
factors
for
composition
community,
revealed
result
Pearson
correlation
analysis
redundancy
analysis.
Bacterial
genera
Terrimonas
significantly
affected
indicator
pepper.
PICRUSt
functional
suggested
that
primarily
comprised
four
level-1
layers
16
level-2
layers,
active
identified
Metabolism,
Genetic
information
processing,
Cellular
processes.
genes
correlated
with
Amino
acid
metabolism
Carbohydrate
thus
facilitating
nitrogen
cycle
plants.
Our
increase
beneficial
more
facilitate
within
plants,
while
effectively
expediting
plants
soil.
This
study
provides
insights
into
plant
communities
response
