Effect of No-Tillage on Soil Bacterial Community Structure in the Black Soil Region of Northeast China
Chuan Liu,
No information about this author
Gang Liu,
No information about this author
Hui Gao
No information about this author
et al.
Sustainability,
Journal Year:
2025,
Volume and Issue:
17(5), P. 2114 - 2114
Published: Feb. 28, 2025
To
assess
the
effects
of
prolonged
no-tillage
practices
on
soil
health
and
crop
output,
an
18-year
field
study
was
carried
out
in
black
region
Northeast
China.
We
investigated
variations
physicochemical
properties,
bacterial
community
structure,
soybean
yield
under
different
(NT)
durations
from
year
10
to
18
conventional
tillage
(CT)
treatments
for
years.
The
findings
indicated
that
(NT18)
treatment
resulted
significantly
greater
levels
organic
matter,
total
nitrogen,
available
phosphorus—18.3%,
30.4%,
65.8%
higher,
respectively
(p
<
0.05)—compared
traditional
(CT18)
treatment.
In
0–30
cm
layer,
relative
abundance
Acidobacteriota
had
risen
with
duration
no-tillage,
whereas
Proteobacteria,
Gemmatimonadota,
Verrucomicrobiota
shown
a
decline.
addition,
increased
network
complexity,
longer
leading
higher
complexity.
Soybean
by
8.5%
NT18
compared
CT18
0.05).
These
provide
insights
into
interaction
between
microbial
communities
within
region,
thereby
establishing
solid
foundation
developing
efficient,
ecological,
sustainable
conservation
systems
Language: Английский
Plants Drive Microbial Biomass and Composition but Not Diversity to Promote Ecosystem Multifunctionality in Karst Vegetation Restoration
Microorganisms,
Journal Year:
2025,
Volume and Issue:
13(3), P. 590 - 590
Published: March 4, 2025
Natural
restoration
has
emerged
as
a
prominent
approach
in
recent
decades
for
the
rehabilitation
of
degraded
ecosystems
globally.
However,
specific
changes
and
underlying
mechanisms
by
natural
that
influence
multifunctionality
karst
remain
poorly
understood.
In
this
study,
soil,
litter,
fine
root
samples
were
collected
from
four
chronosequence
stages
vegetation
restoration—grassland
(G),
shrubland
(SH),
shrub-tree
land
(ST),
forest
(F)—within
ecosystem
Southwestern
China.
The
aim
was
to
evaluate
impacts
on
using
an
averaging
approach.
results
demonstrated
indices
C-cycling
functionality,
N-cycling
P-cycling
total
increased
progressed,
along
with
plant
diversity.
structure
plant,
bacterial,
fungal
communities
varied
across
different
restoration,
exhibiting
highest
microbial
diversity
SH
stage.
Additionally,
tightness
complexity
co-occurrence
networks
bacteria
fungi
advancing
higher
positive
links
observed
than
bacteria.
functional
significantly
positively
correlated
increasing
diversity,
litter
nutrient
contents,
biomass,
community,
enzyme
activities,
soil
contents
but
not
bacterial
diversities.
Furthermore,
Random
Forest
model
revealed
plants
exerted
greater
compared
other
factors.
It
is
plausible
community
networks,
levels
through
input
nutrients
rather
altering
enhance
multifunctionality.
Therefore,
initiatives
increase
are
beneficial
sustainable
ecological
management
regions
Language: Английский
Characterization of Microbial Carbon Metabolism in Karst Soils from Citrus Orchards and Analysis of Its Environmental Drivers
Shixuan Wang,
No information about this author
Zhenjiang Jin,
No information about this author
Xuesong Li
No information about this author
et al.
Microorganisms,
Journal Year:
2025,
Volume and Issue:
13(2), P. 267 - 267
Published: Jan. 25, 2025
Karst
regions
(KRs)
have
created
significant
karst
carbon
sinks
globally
through
the
cycling
process
involving
“water-carbon
dioxide-carbonate
rock-biota”.
Soil
organic
(SOC)
represents
a
crucial
component
of
these
sinks.
Microorganisms
play
vital
role
in
soil
cycle,
influencing
formation
and
preservation
SOC.
Therefore,
investigating
metabolism
microorganisms
KRs
is
essential
for
clarifying
unique
biogeochemical
mechanisms
within
regions.
In
this
paper,
soils
from
(KRs),
mixed
(MRs)
non-karst
(NKRs)
were
collected
citrus
orchards
Mao
Village,
Experimental
Field,
Guilin
City,
Guangxi
Zhuang
Autonomous
Region,
China.
The
ability
to
use
different
sources
was
analyzed
by
Biolog-Eco
microtiter
plate
technique;
number
detected
colony
counting
method,
microbial
biomass
determined
chloroform
fumigation
method.
results
showed
that
bacterial
(5.69
±
0.39
×
106
CFU/g),
(MBC)
(608.24
63.80
mg/kg),
quotient
(SMQ)
(3.45
0.18%),
Shannon’s
index
(H′)
(3.28
0.05)
KR
significantly
higher
than
those
NKR.
pH
positive
correlation
(p
<
with
H′
0.05);
SOC
highly
0.01),
MBC,
H′,
average
well
change
development
(AWCD)
0.05).
Total
nitrogen
(TN)
MBC
available
potassium
(AK)
Exchangeable
calcium
(Ca2+)
demonstrated
correlations
number,
above
indicate
metabolic
diversity
highest
KR.
pH,
exchangeable
Ca2+
main
factors
differentiation
between
Language: Английский
Assembly, Network Stability, and Influencing Factors of Soil Bacterial Communities Along Altitudinal Gradients in Southwest China’s Fragile Regions
Environmental Technology & Innovation,
Journal Year:
2025,
Volume and Issue:
unknown, P. 104199 - 104199
Published: April 1, 2025
Language: Английский