Agronomy,
Journal Year:
2024,
Volume and Issue:
14(4), P. 753 - 753
Published: April 5, 2024
Plastic
film
mulching,
widely
used
in
agriculture,
leads
to
microplastic
(MP)
pollution
soils.
While
biodegradable
polybutylene
adipate
terephthalate
(PBAT)
films
may
offer
a
solution,
their
impacts
on
subsurface
soils
and
microorganisms
remain
unclear.
To
investigate
the
effects
of
conventional
non-biodegradable
polyethylene
(PE)
PBAT
MPs
properties
sub-surface
microbial
communities,
were
added
at
varying
doses
field
experiment
incubated
for
160
days.
Physicochemical
characteristics,
nutrient
dynamics,
composition,
diversity,
networks
analyzed
using
standard
techniques
16S
rRNA/ITS
gene
sequencing.
Correlations
between
soil
microbes
assessed.
Both
MP
types
significantly
altered
with
PBAT-MP
elevating
pH
levels
available
phosphorus
potassium
more
than
PE-MP.
Microbial
composition
shifts
occurred,
low-addition
promoting
plastic-degrading
genera.
The
assessment
α/β-diversity
indicated
that
predominantly
influenced
fungi
while
PE-MP
impacted
bacteria.
An
examination
co-occurrence
highlighted
primarily
disrupted
fungal
interactions,
whereas
streamlined
network
complexity.
Correlation
analyses
revealed
promoted
diversity/network
resilience
correlating
nutrients.
native
soil/microbe
relationships.
exert
greater,
yet
unknown,
over
time
through
its
biodegradation
into
newer
smaller
fragments.
Future
research
needs
integrate
multi-omics
stable
isotope
science
elucidate
deep
mechanistic
degraded
film-derived
ecological
functions
biogeochemical
cycles.
Attention
should
also
be
paid
long-term
accumulation/transport
agricultural
Overall,
this
work
deepens
impact
understanding
from
plastic
ecology.
Furthermore,
it
provides
theoretical
foundation
managing
‘white
pollution’
film-covered
farmlands
arid
semi-arid
regions
China.
