Long-term Kentucky bluegrass cultivation enhances soil quality and microbial communities on the Qinghai-Tibet Plateau
Frontiers in Plant Science,
Год журнала:
2025,
Номер
16
Опубликована: Март 24, 2025
Introduction
Nature-based
Solutions
(NbS)
provide
a
comprehensive
strategy
for
environmental
management,
focusing
on
the
protection,
sustainable
use,
and
restoration
of
natural
modified
ecosystems.
Cultivated
grasslands
are
form
NbS,
offering
benefits
such
as
increased
biodiversity,
improved
soil
fertility,
greater
ecosystem
resilience.
They
widely
acknowledged
their
positive
impact
restoring
degraded
grasslands.
Kentucky
bluegrass
(Poa
pratensis
L.)
is
used
Qinghai-Tibet
Plateau.
However,
long-term
cultivation
can
lead
to
above-ground
degradation,
which
challenges
its
effectiveness
in
health.
Methods
This
study
investigates
impacts
quality,
nutrients,
enzyme
activities,
microbial
communities
across
different
recovery
stages.
Field
experiments
were
conducted
analyze
quality
dynamics
during
early
(2nd
year),
mid
(6th
late
(10th
year)
succession
stages
cultivated
Our
results
show
that
mid-stages,
total
nitrogen,
phosphorus,
organic
carbon
storage
significantly
lower
compared
undegraded
grasslands,
with
lowest
observed
stage
(P<
0.05).
by
stage,
improved,
contents
exceeding
those
14.59%.
These
improvements
driven
enhanced
community
nitrogen
cycling
promoted
nutrient
utilization
matter
decomposition.
process
was
accompanied
rise
diversity,
supporting
resilience
function.
Soil
emerged
key
determinant
both
appropriate
fertilization
strategies
found
effectively
enhance
grassland
productivity
Discussion
Overall,
this
highlights
potential
improving
fertility
structure
over
time,
providing
insights
into
management
practices
maintain
services
Язык: Английский
Crop Cultivation Reshapes Soil Microbiomes to Drive Heavy Metal Mobilization in Restored Mining Areas
Agriculture,
Год журнала:
2025,
Номер
15(8), С. 804 - 804
Опубликована: Апрель 8, 2025
Mining
activities
cause
substantial
heavy
metal
release.
Ecosystem
restoration
is
considered
one
of
the
most
effective
ways
to
prevent
mobilization
in
mining
areas.
Previous
studies
have
suggested
that
microorganisms
play
crucial
roles
transport
metal-contaminated
farmland
soils.
However,
interactions
between
geochemical
fractions
metals
and
microbial
communities
under
crop
cultivation
restored
areas
are
still
unclear.
In
this
study,
we
systematically
collected
soil
(FS)
grassland
(GS)
from
a
area
reveal
effects
on
composition
microbiomes
their
potential
mobilization.
The
results
revealed
exchangeable
(Cd,
Zn,
As)
FS
(11%,
11%,
1.3%
average,
respectively)
were
significantly
greater
than
those
GS
(30%,
19%,
3.2%
respectively),
indicating
agricultural
promoted
addition,
determined
attributes,
including
diversity,
composition,
community
structure,
different
GS.
Furthermore,
our
such
differences
driven
mainly
by
Notably,
dominant
genera
enriched
extensively
involved
mobilization,
which
consistent
with
fact
metabolism-related
genes
FS.
Taken
together,
findings
suggest
an
important
role
Язык: Английский
Root zone microbial communities of Artemisia ordosica Krasch. at different successional stages in Mu US Sandy Land: a metagenomic perspective with culturomics insights
Frontiers in Microbiology,
Год журнала:
2025,
Номер
16
Опубликована: Май 9, 2025
Phytoremediation
offers
a
promising
strategy
for
addressing
the
global
challenge
of
land
desertification.
In
Mu
Us
Sandy
Land
China,
Artemisia
ordosica
Krasch.
has
emerged
as
key
species
desertification
control.
Its
root-associated
microbial
communities
may
enhance
plant’s
adaptability
to
sandy,
nutrient-poor
environments.
Despite
their
ecological
significance,
comprehensive
investigations
these
remain
limited.
this
study,
in
root
zone
(i.e.,
rhizosphere
soil,
non-rhizosphere
and
endosphere)
A.
were
analyzed
via
high-throughput
sequencing
different
isolation
approaches
across
successional
stages
(moving
dunes,
semi-fixed
fixed
dunes)
northern
China.
Metagenomic
analysis
revealed
that
diversity
was
significantly
higher
soils
than
endosphere;
moving
dunes
exhibited
lower
dunes.
Meanwhile,
distinct
community
structures
by
principal
coordinates
(PCoA),
demonstrating
substantial
differences
between
endosphere
other
zones.
Environmental
factors,
including
nitrate
nitrogen
(NO
3
−
-N),
organic
matter
(OM),
available
potassium
(AK),
total
(TK),
influenced
composition.
Moreover,
dominant
genera
such
Arthrobacter
Paraphoma
identified,
potentially
contributing
growth.
From
culturomics
perspective,
93
bacterial
isolates
obtained
using
conventional
streak
plate
colony
pick
methods,
with
Firmicutes
(37.63%)
Bacillus
(23.66%)
identified
taxa.
parallel,
14
fungal
strains
isolated,
primarily
belonging
Penicillium
(35.71%)
Aspergillus
(21.43%),
both
which
are
well-documented
stress
tolerance
arid
ecosystems.
A
cultivation
identification
method,
tailored
recover
rare
slow-growing
bacteria,
employed
successfully
broadened
cultured
include
Proteobacteria
(46.43%)
representatives
rarely
cultivated
Deinococcus-Thermus
phylum.
This
study
provides
metagenomic
insights
into
associated
,
enhancing
understanding
plant–microbe
interactions
sandy
Язык: Английский
Development of root rot in Zanthoxylum bungeanum is closely linked to changes in soil microbial communities, enzyme activities, and physicochemical factors
Global Ecology and Conservation,
Год журнала:
2024,
Номер
55, С. e03249 - e03249
Опубликована: Окт. 10, 2024
Язык: Английский