Soil
plastic
pollution
is
a
global
environmental
problem
that
seriously
endangers
food
security
and
human
health.
Plastics
are
widely
detected
in
arid
semiarid
agricultural
soils,
resulting
serious
threat
to
dryland
farmlands.
Nevertheless,
the
effects
of
various
film
residues
on
plastisphere
bacterial
community
have
not
been
well
studied.
Herein,
6-year
experiment
was
conducted
cropland
Loess
Plateau
China
investigate
soil
burial
degradation
three
types
films
kinds
residue
ambient
diversity,
composition
function.
The
scanning
electron
microscopy
analysis
showed
cracks
holes
developed
surface
during
degradation.
Gas
chromatography-mass
spectrometry
presence
23
short-chain
alkanes,
3
alkenes
2
esters.
most
abundant
alkanes
were
n-octane
n-nonane,
with
content
15.25
mg/kg
12.93
mg/kg,
respectively.
trans-squalene
highest
among
alkenes.
High-throughput
sequencing
demonstrated
bacteria’s
diversity
structure
significantly
altered
after
residual
soil.
exhibited
higher
alpha
than
Proteobacteria,
Acidobacteria
Actinobacteria
phyla.
Plastic
can
serve
as
unique
habitat
for
microorganisms,
thereby
increasing
some
taxa,-
such
Actinobacteria,
Bacteroidota.
functional
prediction
results
indicated
could
effectively
augment
groups
related
carbon
cycle
These
findings
show
novel
perspective
how
responds
residues,
emphasizing
need
explore
ecological
health
risks
Environmental Science & Technology,
Год журнала:
2023,
Номер
57(25), С. 9174 - 9183
Опубликована: Июнь 13, 2023
Plastic
film
mulching
and
urea
nitrogen
fertilization
are
widely
used
in
agricultural
ecosystems,
but
both
their
long-term
use
may
leave
a
negative
legacy
on
crop
growth,
due
to
deleterious
effects
of
plastic
microplastic
accumulation
acidification
soil,
respectively.
Here,
we
stopped
covering
soil
with
an
experimental
site
that
was
previously
covered
for
33
years
compared
properties
subsequent
maize
growth
yield
between
plots
were
never
the
film.
Soil
moisture
about
5–16%
higher
at
mulched
plot
than
never-mulched
plot,
NO3–
content
lower
former
when
fertilization.
Maize
generally
similar
plots.
had
earlier
dough
stage
(6–10
days)
Although
did
add
substantial
amounts
residues
into
soils,
it
not
net
(given
positive
practice
first
place)
quality
yield,
least
as
initial
effect
our
experiment.
Long-term
resulted
pH
decrease
1
unit,
which
bring
temporary
P
deficiency
occurring
early
stages
growth.
Our
data
information
this
important
form
pollution
systems.
The Science of The Total Environment,
Год журнала:
2022,
Номер
856, С. 159167 - 159167
Опубликована: Окт. 4, 2022
Biodegradable
mulches
(BDM)
are
increasingly
valued
and
used
for
substituting
non-biodegradable
plastic
polluting
agricultural
soils.
They
tilled
into
soil,
where
they
fragment
release
compounds
throughout
their
biodegradation.
The
consequences
of
BDM
use
on
the
plant-soil
environment
have
been
partially
studied
with
pristine
artificially-weathered
fragments.
However,
to
guarantee
safety
BDM,
studies
debris
effects
required.
For
this,
determine
potential
field-weathering
plants,
a
mesocosm
experiment
was
performed
by
sowing
seeds
from
two
major
plant
species
commonly
cultivated
tomato
(Lycopersicon
esculentum)
lettuce
(Lactuca
sativa),
in
pots
containing
field-weathered
pieces
seven
different
formulations,
one
paper
mulch,
polyethylene
(PE)
no-mulch
control
pots.
Germination
both
unaffected
any
mulch
treatments;
however,
PHB
(polyhydroxybutyrate)-based
fragments
severely
inhibited
growth,
90
95
%,
respectively.
Moreover,
all
significantly
delayed
development.
Tomato
growth
progressed
better,
but
retardation
also
evidenced
most
treatments.
Overall,
caused
stronger
plants
than
unused
ones.
No
were
found
PE
either
or
field-weathered.
obtained
results
highlight
that
may
alter
development
depending
nature
weathering,
rather
physical
presence,
evidence
need
conduct
further
experiments
impact
environment.
Sustainability,
Год журнала:
2023,
Номер
15(20), С. 15096 - 15096
Опубликована: Окт. 20, 2023
The
use
of
plastic
film
for
mulching
cultivation
is
an
important
agricultural
production
technology,
which
plays
role
in
achieving
yield
increase
and
farmers’
income
increase.
China’s
mulch
ranks
first
the
world,
China
also
country
with
most
severe
residual
pollution
farmland.
It
great
significance
to
have
a
comprehensive
understanding
resource
recycling
China.
As
result,
this
article
reviews
recent
advances
First,
types
characteristics
commonly
used
are
introduced.
Then,
development
process
application
situation
mainly
summarized,
problems
farmland
soil
environmental
caused
by
discussed.
Finally,
current
situation,
main
practices,
existing
waste
explained
detail
from
perspectives
government
policy
formulation
farmer
practice.
research
will
play
further
solving
problem
can
provide
reference
other
countries.
